To see the other types of publications on this topic, follow the link: Infiltrative resin.
Journal articles on the topic 'Infiltrative resin'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Infiltrative resin.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Soveral, Madalena, Vanessa Machado, João Botelho, José João Mendes, and Cristina Manso. "Effect of Resin Infiltration on Enamel: A Systematic Review and Meta-Analysis." Journal of Functional Biomaterials 12, no. 3 (August 16, 2021): 48. http://dx.doi.org/10.3390/jfb12030048.
Full textAbstract:
Subsurface enamel demineralization beneath an intact surface layer or white spots lesions (WSL) can and should be treated with non-invasive procedures to impede the development of a cavitated lesion. We aim to analyze if infiltrative resin improves enamel roughness, microhardness, shear bond strength, and penetration depth. MEDLINE [via Pubmed], Cochrane Central Register of Controlled Trials, Embase, Web of Science, Scholar, and LILACS were searched until May 2021. Methodological quality was assessed using the Joanna Briggs Institute Clinical Appraisal Checklist for Experimental Studies. Pairwise ratio of means (ROM) meta-analyses were carried out to compare the enamel properties after treatment with infiltrative resin on sound enamel and WSLs. From a total of 1604 articles, 48 studies were included. Enamel surface roughness decreased 35% in sound enamel (95%CI: 0.49–0.85, I2 = 98.2%) and 54% in WSLs (95%CI: 0.29–0.74, I2 = 98.5%). Microhardness reduced 24% in sound enamel (95%CI: 0.73–0.80, I2 = 99.1%) and increased by 68% in WSLs (95%CI: 1.51; 1.86, I2 = 99.8%). Shear bond strength reduced of 25% in sound enamel (95%CI: 0.60; 0.95, I2 = 96.9%) and increased by 89% in WSLs (95%CI: 1.28–2.79, I2 = 99.8%). Penetration depth was 65.39% of the WSLs (95%CI: 56.11–74.66, I2 = 100%). Infiltrative resins effectively promote evident changes in enamel properties in sound and WSLs. Future studies with long-term follow-ups are necessary to corroborate these results from experimental studies.
2
Silva, Stephanie N., Alena M. Reich, Eladio DeLeon, Tara Schafer, Frederick A. Rueggeberg, and Weston M. Fortson. "Staining potential differences between an infiltrative resin and an esthetic, flowable composite." Journal of Esthetic and Restorative Dentistry 30, no. 5 (September 2018): 457–63. http://dx.doi.org/10.1111/jerd.12415.
Full text
3
Cho, Bum Rae, and Dae Hong Heo. "Preparation of Mullite Composite Using Liquid Infiltration Technique." Key Engineering Materials 317-318 (August 2006): 105–10. http://dx.doi.org/10.4028/www.scientific.net/kem.317-318.105.
Full textAbstract:
Porous mullite with a porosity of about 78% was fabricated using Al(OH)3, SiO2 and AlF3 powders to develop non-asbestos friction materials for brake pads. A mullite composite was fabricated by infiltrating liquid phenolic resins to the porous mullite. The effects of the processing parameters (infiltration frequency, immersion duration and resin temperature) on the properties of the mullite composite obtained by the liquid infiltration technique were studied. SEM analysis reveals that the parameters affected the degree of infiltration and hardness of the mullite composite by changing the infiltration frequency and immersion duration. With increasing immersion duration and infiltration frequency, the resultant porosity had lower values. In the case of hardness, the measured values showed an opposite tendency.
4
Mascorro, Jose A. "Propylene Oxide: To Use or Not to Use in Biological Tissue Processing." Microscopy Today 12, no. 1 (January 2004): 45. http://dx.doi.org/10.1017/s1551929500051853.
Full textAbstract:
Propylene oxide (1,2-epoxy propane) has long been utilized as a transitional solvent in the preparation of biological tissues. This compound compound is completely miscible with the various epoxy resins utilized for infiltrating tissues. Ethanol, perhaps the most widely used dehydration agent, does not possess this characteristic and must be removed before the process of infiltration commences. It is common practice amongst biological microscopists to pass tissues for a few minutes through pure propylene oxide (PO) immediately prior to infiltration. The tissues then are pre-infiltrated with various proportions of PO and the embedding medium of choice. For example, one traditional recipe takes the tissues progressively from pure PO to 2:1 PO/resin, 1:1 PO/resin, and 1:2 PO/resin mixtures, with stays of a few minutes at eacil stage. A lengthy procedure such as tills probably is not necessary and has never been favored by this worker.
5
Nasser, Felipe, Joaquim Maurício Motta Leal Filho, Breno Boueri Affonso, Francisco Leonardo Galastri, Rafael Noronha Cavalcante, Diego Lima Nava Martins, Vanderlei Segatelli, et al. "Liver Metastases in Pancreatic Acinar Cell Carcinoma Treated with Selective Internal Radiation Therapy with Y-90 Resin Microspheres." Case Reports in Hepatology 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/1847428.
Full textAbstract:
Background. Pancreatic acinar cell carcinoma (PACC) is a rare tumor. Surgical resection is the treatment of choice when feasible, but there are no clear recommendations for patients with advanced disease. Liver-directed therapy with Y-90 selective internal radiation therapy (SIRT) has been used to treat hepatic metastases from pancreatic tumors. We describe a case of PACC liver metastases treated with SIRT. Case Report. 59-year-old man was admitted with an infiltrative, solid lesion in pancreatic tail diagnosed as PACC. Lymph nodes in the hepatic hilum were enlarged, and many metastatic liver nodules were observed. After partial pancreatectomy, the left and right lobes of the liver were separately treated with Y-90 resin microspheres. Follow-up imaging revealed that all hepatic nodules shrank by at least 50%, and 3 nodules disappeared completely. Lipase concentration was 8407 U/L at baseline, rose to 12,705 U/L after pancreatectomy, and declined to 344 U/L after SIRT. Multiple rounds of chemotherapy in the subsequent year shrank the hepatic tumors further; disease then progressed, but a third line of chemotherapy shrank the tumors again, 16 months after SIRT treatment. Conclusion. SIRT had a positive effect on liver metastases from PACC. In conjunction with systemic therapy, SIRT can achieve sustained disease control.
6
Andrade, Rosa Maria Pereira Moisés Barbosa de, Ruchele Dias Nogueira, Maria Angélica Hueb Menezes-Oliveira, Cesar Penazzo Lepri, and Vinícius Rangel Geraldo-Martins. "Use of Resin Infiltrate for the Treatment of White spot Lesions on Dental Enamel: Case Report." Journal of Health Sciences 21, no. 2 (June 19, 2019): 134. http://dx.doi.org/10.17921/2447-8938.2019v21n2p134-138.
Full textAbstract:
Abstract Early diagnosis of white spot lesions allows non-invasive treatment to be indicated for the remineralization of active lesions. The goal was to report the clinical Protocol for the treatment of white spot lesion of a patient by the technique of resin infiltration, observing whether there is change of color on the white spot of the dental enamel after its treatment. The selected patient was 16 years old with good overall health, who featured white spot lesion of the dental enamel on tooth 13, classified as ICDAS score 2. The tooth was photographed, and its color was evaluated with the spectrophotometer in accordance with the CIELhC system. For comparison purposes, the color of tooth enamel in an area adjacent to the lesion was evaluated. The treatment of the lesion was performed with the resin infiltrate Icon (DMG, Hamburg, Germany), following the manufacturer's instructions. The color of the tooth was re-evaluated after the application of the resin infiltrate. At the end of the procedure, it was observed that the treatment of white spot lesion by resin infiltration technique reached its goal because, in addition to being minimally invasive, it was highly approved by patient and it provided the masking of the white spot lesion on the dental enamel. Keywords: Dental Caries. Dental Enamel. Composite Resins. ResumoO diagnóstico precoce de lesões de mancha branca permite que um tratamento não invasivo seja indicado para a remineralização das lesões ativas. O objetivo foi relatar o protocolo clínico para tratamento de lesão de mancha branca ativa de um paciente pela técnica do infiltrante resinoso, observando se existe alteração de cor da mancha branca do esmalte dental após o seu tratamento. Foi selecionada uma paciente, de 16 anos de idade, com boa saúde geral e que apresentava lesão de mancha branca no esmalte dental do dente 13, classificada pelo escore 2 do ICDAS. O dente foi fotografado e sua cor foi avaliada com o espectrofotômetro de acordo com o sistema CIELhC. Para fins de comparação, foi avaliada a cor do esmalte dental em uma área adjacente à lesão. O tratamento da lesão foi realizado com a resina infiltrante Icon (DMG, Hamburgo, Alemanha), seguindo as recomendações do fabricante. A cor do dente foi reavaliada após a aplicação do infiltrante. Ao final do procedimento, observou-se que o tratamento da lesão de mancha branca pela técnica da resina infiltrante atingiu seu objetivo pois, além de ter sido minimamente invasiva, foi bem avaliada pela paciente e proporcionou o mascaramento da lesão de mancha branca do esmalte dental. Palavras-chave: Cárie Dentária. Esmalte Dentário. Resinas Compostas.
7
Wöckel, Lydia, Thomas Ebert, Bernd Mainzer, Martin Frieß, Dietmar Koch, Kristina Roder, Daniel Wett, Daisy Nestler, Guntram Wagner, and Stefan Spange. "Investigation of Different Phenolic Resins and their Behavior during Pyrolysis to Form SiC/C-Composites." Materials Science Forum 825-826 (July 2015): 240–48. http://dx.doi.org/10.4028/www.scientific.net/msf.825-826.240.
Full textAbstract:
Specific phenolic resin samples have been developed as the carbon precursor for SiC/C composites. Liquid phenolic resins suitable for fiber-infiltration in the resin transfer moulding (RTM) process are synthesized by using versatile combination of the aromatic component (phenol, naphthalen-2-ol) with various formaldehyde equivalents such as methanal, 1,3,5,7tetraazatricyclo [3.3.1.13,7] decane (urotropine), and 1,3,5-trioxane, under different reaction conditions. Room temperature liquid resoles (RTLR) are obtained by using an excess of the formaldehyde component over phenol (≥2) under basic conditions. Upon heating RTLR can form a crosslinked network even without addition of a hardening reagent. In addition, novolacs are synthesized under acidic conditions using a phenol/formaldehyde ratio ≥1. Nitrogen-containing resins contain nitrogen due to reaction of phenol with urotropine. Novolacs and nitrogen-containing resins are solids at room temperature and not self-curing. To infiltrate these both resins into SiC fibers in the RTM process, they are dissolved in 2furanmethanol (furfuryl alcohol FA) and urotropine which is added as curing-agent. Both, the molecular weight and the amount of the dissolved phenolic resin have an influence on the viscosity and the carbon yield after pyrolysis which is important for this application. The aim was to create different phenolic resins for the fabrication in the RTM process and to characterize the carbon after pyrolysis with respect to the structure and porosity as these are key parameters to generate a stoichiometric SiC matrix by LSI.
8
Marouane, O., N. Douki, and F. Chtioui. "A Combined Approach for the Aesthetic Management of Stained Enamel Opacities: External Bleaching Followed by Resin Infiltration." Case Reports in Dentistry 2018 (July 9, 2018): 1–4. http://dx.doi.org/10.1155/2018/1605842.
Full textAbstract:
Stained enamel opacities are frequently encountered in dental practice. However, due to the risk of unaesthetic outcome, managing such lesions by resin infiltration techniques alone is not advised. Therefore, performing external bleaching before resin infiltration procedure is mandatory to eliminate stains from the hypomineralized lesions in order to aesthetically infiltrate them. In this work, we describe clinical cases in which external bleaching and resin infiltration techniques were used for managing stained enamel hypomineralized lesions related to traumatic dental injuries and molar incisor hypomineralization. Despite the fact that this approach has some limitations, it could be concluded that external bleaching associated with the resin infiltration technique shows promising results to aesthetically manage stained enamel opacities when the stain is totally removed after bleaching.
9
Sasaki, Gen, Junichi Adachi, Yong Bum Choi, Jin Pan, Toshio Fujii, Kazuhiro Matsugi, and Osamu Yanagisawa. "Fabrication of the Aluminum Matrix Composite by Ultrasonic Infiltration Technique." Materials Science Forum 475-479 (January 2005): 921–24. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.921.
Full textAbstract:
In order to infiltrate the molten aluminum alloy to the reinforcement preform by low pressure in casting process and acquire the high performance composites with high density, the effect of the ultrasonic vibration on the infiltration was investigated by model experiments using clear solution and glass or aluminum borate preform, which is correspond to a molten matrix and reinforcement, respectively. Ultrasonic vibration improves the wettability of liquid polyester resin on glass plate, dramatically. The final infiltration height and infiltration speed of liquid polyester resin in glass capillary were improved by the ultrasonic vibration. Furthermore, the infiltration speed of water to aluminum borate preform accelerated by ultrasonic vibration. This effect was more remarkable, when the infiltration height is lower or infiltration time is shorter. In actual, the molten aluminum alloy infiltrate to SiC preform using ultrasonic vibration easily and acquire the high dense composites without pores.
10
Sava Rosianu, Ruxandra, Angela Codruta Podariu, Meda Lavinia Negrutiu, Camelia Szuhanek, and Cosmin Sinescu. "Low Viscosity Resin Penetration Degree in Incipient Caries Lesions." Revista de Chimie 68, no. 11 (December 15, 2017): 2588–92. http://dx.doi.org/10.37358/rc.17.11.5934.
Full textAbstract:
Resin infiltration is considered a treatment option for initial caries lesions. To prevent enamel lesion s from further demineralization a complete and homogeneous penetration of low-viscosity resins should be accomplished. The aim of this study was to compare the penetration abilities of 3 commercial products: Icon (DMG, Germany), Fluorodose (Centrix Inc. USA) and Tetric flow (IvoclarVivadent, Schaan, Liechtenstein).Artificial white spot lesions were produced in 60 orthodontic extracted human premolars. The samples were randomly divided into 3 groups: F - weeklyapplication of 5%fluoride gel; IC � resin infiltration (Icon1-DMG) and T - treatment with composite resins (Tetric flow). Specimens were studied using confocal microscopy and penetration depths were determined. A good correlation between PC and penetration depth was thereby observed (Pearson correlation coefficient, r=0.820).
11
Mascorro, Joe A., and Gerald S. Kirby. "Novel epoxy/anhydride alternatives for biological electron microscopy: Physical and performance characteristis of embed 812 and LX 112 in combination with NSA/NMA/DMAE." Proceedings, annual meeting, Electron Microscopy Society of America 47 (August 6, 1989): 1000–1001. http://dx.doi.org/10.1017/s0424820100156985.
Full textAbstract:
Embedding media based upon an epoxy resin of choice and the acid anhydrides dodecenyl succinic anhydride (DDSA), nadic methyl anhydride (NMA), and catalyzed by the tertiary amine 2,4,6-Tri(dimethylaminomethyl) phenol (DMP-30) are widely used in biological electron microscopy. These media possess a viscosity character that can impair tissue infiltration, particularly if original Epon 812 is utilized as the base resin. Other resins that are considerably less viscous than Epon 812 now are available as replacements. Likewise, nonenyl succinic anhydride (NSA) and dimethylaminoethanol (DMAE) are more fluid than their counterparts DDSA and DMP- 30 commonly used in earlier formulations. This work utilizes novel epoxy and anhydride combinations in order to produce embedding media with desirable flow rate and viscosity parameters that, in turn, would allow the medium to optimally infiltrate tissues. Specifically, embeding media based on EmBed 812 or LX 112 with NSA (in place of DDSA) and DMAE (replacing DMP-30), with NMA remaining constant, are formulated and offered as alternatives for routine biological work.Individual epoxy resins (Table I) or complete embedding media (Tables II-III) were tested for flow rate and viscosity. The novel media were further examined for their ability to infilftrate tissues, polymerize, sectioning and staining character, as well as strength and stability to the electron beam and column vacuum. For physical comparisons, a volume (9 ml) of either resin or media was aspirated into a capillary viscocimeter oriented vertically. The material was then allowed to flow out freely under the influence of gravity and the flow time necessary for the volume to exit was recored (Col B,C; Tables). In addition, the volume flow rate (ml flowing/second; Col D, Tables) was measured. Viscosity (n) could then be determined by using the Hagen-Poiseville relation for laminar flow, n = c.p/Q, where c = a geometric constant from an instrument calibration with water, p = mass density, and Q = volume flow rate. Mass weight and density of the materials were determined as well (Col F,G; Tables). Infiltration schedules utilized were short (1/2 hr 1:1, 3 hrs full resin), intermediate (1/2 hr 1:1, 6 hrs full resin) , or long (1/2 hr 1:1, 6 hrs full resin) in total time. Polymerization schedules ranging from 15 hrs (overnight) through 24, 36, or 48 hrs were tested. Sections demonstrating gold interference colors were collected on unsupported 200- 300 mesh grids and stained sequentially with uranyl acetate and lead citrate.
12
Shin, Jongseon, Kyunbae Lee, Yeonsu Jung, Byeongjin Park, Seung Jae Yang, Taehoon Kim, and Sang Bok Lee. "Mechanical Properties and Epoxy Resin Infiltration Behavior of Carbon-Nanotube-Fiber-Based Single-Fiber Composites." Materials 14, no. 1 (December 29, 2020): 106. http://dx.doi.org/10.3390/ma14010106.
Full textAbstract:
Carbon nanotube fiber (CNTF), prepared by the direct-spinning method, has several nanopores, and the infiltration behavior of resins into these nanopores could influence the mechanical properties of CNTF-based composites. In this work, we investigated the infiltration behavior of resin into the nanopores of the CNTFs and mechanical properties of the CNTF-based single-fiber composites using six epoxy resins with varying viscosities. Epoxy resins can be easily infiltrated into the nanopores of the CNTF; however, pores appear when a resin with significantly high or low viscosity is used in the preparation process of the composites. All the composite fibers exhibit lower load-at-break value compared to as-densified CNTF, which is an unexpected phenomenon. It is speculated that the bundle structure of the CNTF can undergo changes due to the high affinity between the epoxy and CNTF. As composite fibers containing pores exhibit an even lower load-at-break value, the removal of pores by the defoaming process is essential to enhance the mechanical properties of the composite fibers.
13
Scotti, Nicola, Allegra Comba, Alberto Gambino, Davide Salvatore Paolino, Mario Alovisi, Damiano Pasqualini, and Elio Berutti. "Microleakage at enamel and dentin margins with a bulk fills flowable resin." European Journal of Dentistry 08, no. 01 (January 2014): 001–8. http://dx.doi.org/10.4103/1305-7456.126230.
Full textAbstract:
ABSTRACT Objective: The aim of this in vitro study was to evaluate the marginal sealing ability of a bulk fill flowable resin composite on both enamel and dentin substrates. Materials and Methods: 48 non-carious molars were selected and four Class-V cavities were prepared at the CEJ of each sample. Cavities were filled with Venus Diamond (Heraeus Kulzer); Venus Diamond Flow (Heraeus Kulzer) and Surefil SDR (Dentsply). Samples were divided into two groups: First group samples were immersed in a methylene blue solution for 30 min at 25°C. Second group samples were artificially aged and then treated with methylene blue. Samples were sectioned in the center of the restoration and observed with a 40x stereomicroscope, and the percentage of cavity infiltration was calculated. Results: Results were analyzed statistically by ANOVA (P < 0.05). The amount of infiltration was significantly lower for the enamel substrate compared with dentin (P = 0.0001) and in samples immediately immersed in methylene blue compared with those that were artificially aged (P = 0.011). The interaction between the composite material and the marginal substrate significantly affected dye penetration (P = 0.006). Conclusions: Bulk fill flowable resins provided significantly better marginal seal in dentin, both before and after artificial ageing. Nanohybrid resin composites and bulk fill flowable resins showed similar microleakage values at enamel margins. Bulk fills flowable resins provided significantly better marginal seal in dentin, both before and after artificial ageing. Nanohybrid resin composites and bulk fill flowable resins showed similar microleakage values at enamel margins.
14
Chen, Jibing, Nong Wan, Juying Li, and Zhanwen He. "Study on the polymer material infiltrating metallic parts by selective laser sintering of 3D printing." Rapid Prototyping Journal 24, no. 9 (November 12, 2018): 1539–43. http://dx.doi.org/10.1108/rpj-05-2016-0073.
Full textAbstract:
Purpose Metal green parts fabricated by indirect selective laser sintering (SLS) have lower mechanical properties, and thus, they cannot satisfy practical application. To enhance their performance, two polymer resins were compounded as a modified material to infiltrate into the metal parts by SLS. Design/methodology/approach The viscosity and glass-transition temperature were tested by a viscometer and differential scanning calorimetry, respectively. The microstructure and morphology of the interface of parts by polymer resin infiltrated were observed to be using scanning electron microscopy. The tensile strength of sample parts was tested, too. The temperature tolerances of two mass ratio polymer materials were tested and compared by thermo-gravimetric analysis (TGA). Findings Compared to those without being polymer material infiltrated, the results of test showed that the tensile strength of the metallic parts is enhanced obviously, about four times. In addition, the analysis of TGA showed that the resin of mass ratio of 2:1 can be endured up to 200° and can be used as infiltrating materials for metal parts. Originality/value Therefore, plastic injection mold and function part can be manufactured by this method.
15
Hammad, Shaza M., and Enas T. Enan. "In vivo effects of two acidic soft drinks on shear bond strength of metal orthodontic brackets with and without resin infiltration treatment." Angle Orthodontist 83, no. 4 (January 11, 2013): 648–52. http://dx.doi.org/10.2319/091512-737.1.
Full textAbstract:
ABSTRACT Objectives: To evaluate the in vivo effects of two acidic soft drinks (Coca-Cola and Sprite) on the shear bond strength of metal orthodontic brackets with and without resin infiltration treatment. In addition, the enamel surface was evaluated, after debonding, using a scanning electron microscope. Materials and Methods: Sixty noncarious maxillary premolars, scheduled for extraction in 30 orthodontic patients, were used. Patients were randomly divided into two groups according to the soft drink tested (Coca-Cola or Sprite). In each group, application of resin infiltration (Icon. DMG, Hamburg, Germany) was done on one side only before bonding of brackets. Patients were told to rinse their mouth with their respective soft drink at room temperature for 5minutes, three times a day for 3months. Shear bond strength was tested with a universal testing machine. After shearing test, a scanning electron microscope was used to evaluate enamel erosion. Statistical analysis was performed by twoway analysis of variance followed by the least significant difference test. Results: The Coca-Cola group without resin infiltration showed the lowest resistance to shearing forces. Scanning electron micrographs of both groups after resin application showed a significant improvement compared with results without resin use, as the enamel appeared smoother and less erosive. Conclusion: Pretreatment with the infiltrating resin has proved to result in a significant improvement in shear bond strength, regardless of the type of soft drink consumed.
16
Alagha, Ebaa, and Mustafa Ibrahim Alagha. "Comparing Impact of Two Resin Infiltration Systems on Microhardness of Demineralized Human Enamel after Exposure to Acidic Challenge." Open Access Macedonian Journal of Medical Sciences 9, no. D (May 14, 2021): 92–97. http://dx.doi.org/10.3889/oamjms.2021.5878.
Full textAbstract:
AIM: This study compared the impact of two resin infiltration systems on microhardness of demineralized enamel before and after an acidic challenge. MATERIALS AND METHODS: A total of forty human maxillary molar teeth were used in this study. Each tooth has 4 groups (four standardized windows onto each tooth). Group A1: Untreated sound enamel surface (positive control), Group A2: Artificially demineralized enamel surface (negative control), Group A3: Icon resin infiltrating to demineralized enamel, while Group A4: Single bond universal adhesive applied to the demineralized enamel surface. All teeth were immersed in a demineralizing solution. The groups (A3 and A4) were further subdivided into two subgroups according to acidic ethanol challenge Subgroup B1: Specimens tested before an acidic challenge and B2: Specimens tested after an acidic challenge. Vickers microhardness test was done for all groups. One-way analysis of variance (ANOVA) was used to study the difference between tested groups on mean microhardness within each group. Tukey’s post-hoc test was used for pair-wise comparison between the means when ANOVA test was performed, and the significance level was set at p ≤ 0.05. RESULTS: Icon resin infiltration and single bond universal adhesive showed significantly higher mean microhardness than negative control, but significantly lower mean microhardness than positive control. However, insignificant difference was found between icon and single bond universal adhesive. After the acidic challenge, icon resin infiltration showed significantly higher mean microhardness than negative control. However, single bond universal adhesive showed insignificant difference as compared to the negative control. CONCLUSION: After an acidic challenge, icon resin infiltration was more successful than single bond universal total-etch adhesive system in microhardness. RECOMMENDATION: Icon resin infiltration technique is a promising, noninvasive approach that prevents the progress of the carious lesion.
17
Junk, Stefan, and Rebecca Matt. "Application of Polymer Plaster Composites in Additive Manufacturing of High-Strength Components." Materials Science Forum 825-826 (July 2015): 763–70. http://dx.doi.org/10.4028/www.scientific.net/msf.825-826.763.
Full textAbstract:
Today, 3D-printing with polymer plaster composites is a common method in Additive Manufacturing. This technique has proven to be especially suitable for the production of presentation models, due to the low cost of materials and the possibility to produce color-models. But nowadays it requires refinishing through the manual application of a layer of resin. However, the strength of these printed components is very limited, as the applied resin only penetrates a thin edge layer on the surface. This paper develops a new infiltration technique that allows for a significant increase in the strength of the 3D-printed component. For this process, the components are first dehydrated in a controlled two-tier procedure, before they are then penetrated with high-strength resin. The infiltrate used in this process differs significantly from materials traditionally used for infiltration. The result is an almost complete penetration of the components with high-strength infiltrate. As the whole process is computer-integrated, the results are also easier to reproduce, compared to manual infiltration. On the basis of extensive material testing with different testing specimen and testing methods, it can be demonstrated that a significant increase in strength and hardness can be achieved. Finally, this paper also considers the cost and energy consumption of this new infiltration method. As a result of this new technology, the scope of applicability of 3D-printing can be extended to cases that require significantly more strength, like the production of tools for the shaping of metals or used for the molding of plastics. Furthermore, both the process itself and the parameters used are monitored and can be optimized to individual requirements and different fields of application.
18
PARIS, Sebastian, Hendrik MEYER-LUECKEL, Helmut CÖLFEN, and Andrej M. KIELBASSA. "Resin Infiltration of Artificial Enamel Caries Lesions with Experimental Light Curing Resins." Dental Materials Journal 26, no. 4 (2007): 582–88. http://dx.doi.org/10.4012/dmj.26.582.
Full text
19
Mascorro, J. A., and G. S. Kirby. "Eponate 12, a new epoxy resin: Comparisons with EPON 812 and observations on its use for general biological electron microscopy." Proceedings, annual meeting, Electron Microscopy Society of America 45 (August 1987): 628–29. http://dx.doi.org/10.1017/s0424820100127578.
Full textAbstract:
Many epoxy resins have been introduced during the last several years as replacements for Epon 812 since the Shell Chemical Company discontinued production of this popular embedding resin. In a past study, the present investigators examined several of the “replacement” resins for physical characteristics such as viscosity, flow rate, density, mass weight, and hardness of the polymerized medium. In addition, other equally important parameters including sectioning and infiltrating character as well as stain-ability and section strength subsequent to beam and vacuum conditions also were evaluated. The present work follows a similar rationale and seeks to determine this same information for Eponate 12, an epoxy resin designated as a true generic replacement for the formerly available Epon 812 product.For purposes of physical comparisons, Eponate 12 was tested against a sample of original Shell Epon 812 still maintained in our laboratory.
20
Pereira, Daniel de Souza, Cristian Higashi, and Antonio Setsuo Sakamoto Junior. "Tratamento de lesões de mancha branca com resina infiltrante." Prosthesis and Esthetics in Science 9, no. 35 (2020): 14–21. http://dx.doi.org/10.24077/2020;935:1421.
Full textAbstract:
The consequences of the irreversibility of the restorative procedure in cavities generate the need to consider what is the best criterion for choosing the treatment with the best prognosis for the patient. Alternative treatment of non-cavitated cavities, such as white spot lesions or stains resulting from dental formation disorders are the themes presented in this case report on treatment with infiltrating resin. Methods: Assessment of the presence, extent and etiology of the white spot and done application protocol provided by the manufacturer and visual assessment of the immediate result. Results: The masking of white spot lesions through resin infiltration was satisfactory in lesions of less depth and a good adequacy in the larger one, which, despite not having fully mimicked the color of the tooth, was satisfactory in comparison to the initial aspect, achieving a good result in the patient’s perception. Conclusions: infiltration with resin proved to be compatible with the studies and clinically viable to be performed, with a low level of technical complexity, it is an excellent alternative in clinical situations of white patches that require a less invasive approach.
21
Arnold, Wolfgang H., Lena Bachstaedter, Korbinian Benz, and Ella A. Naumova. "Resin Infiltration into Differentially Extended Experimental Carious Lesions." Open Dentistry Journal 8, no. 1 (December 29, 2014): 251–56. http://dx.doi.org/10.2174/1874210601408010251.
Full textAbstract:
Resin infiltration of initial caries lesions is a novel method of caries therapy. However, it has some limitations. Therefore, further experimental studies are needed to improve resin infiltration. It was the aim of this investigation to study resin infiltra-tion into different experimental carious lesions. Caries-free extracted human molars and premolars were demineralized for 3, 6, 9 and 12 days and infiltrated with resin. Prior to infiltration, the teeth were incubated with sodium fluorescein. After em-bedding, serial sections were cut through the experimental lesions, and the penetration of the resin was measured with fluo-rescence microscopy. Two infiltrated teeth from each time interval were not embedded and cut. Infiltration of the resin was then studied with EDS element analysis. The results showed that with increasing demineralization time, the lesion expansion was also increasing, and the resin infiltration was always almost complete. From these results it can be concluded that artifi-cial standardized caries-like lesions are suitable for experimental studies of resin infiltration.
22
Rodríguez-Uicab, Omar, Jandro L. Abot, and Francis Avilés. "Electrical Resistance Sensing of Epoxy Curing Using an Embedded Carbon Nanotube Yarn." Sensors 20, no. 11 (June 5, 2020): 3230. http://dx.doi.org/10.3390/s20113230.
Full textAbstract:
Curing effects were investigated by using the electrical response of a single carbon nanotube yarn (CNTY) embedded in an epoxy resin during the polymerization process. Two epoxy resins of different viscosities and curing temperatures were investigated, varying also the concentration of the curing agent. It is shown that the kinetics of resin curing can be followed by using the electrical response of an individual CNTY embedded in the resin. The electrical resistance of an embedded CNTY increased (~9%) after resin curing for an epoxy resin cured at 130 °C with viscosity of ~59 cP at the pouring/curing temperature (“Epon 862”), while it decreased (~ −9%) for a different epoxy cured at 60 °C, whose viscosity is about double at the corresponding curing temperature. Lowering the curing temperature from 60 °C to room temperature caused slower and smoother changes of electrical resistance over time and smaller (positive) residual resistance. Increasing the concentration of the curing agent caused a faster curing kinetics and, consequently, more abrupt changes of electrical resistance over time, with negative residual electrical resistance. Therefore, the resin viscosity and curing kinetics play a paramount role in the CNTY wicking, wetting and resin infiltration processes, which ultimately govern the electrical response of the CNTY immersed into epoxy.
23
Bourouni, S., K. Dritsas, D. Kloukos, and R. J. Wierichs. "Efficacy of resin infiltration to mask post-orthodontic or non-post-orthodontic white spot lesions or fluorosis — a systematic review and meta-analysis." Clinical Oral Investigations 25, no. 8 (June 9, 2021): 4711–19. http://dx.doi.org/10.1007/s00784-021-03931-7.
Full textAbstract:
Abstract Objective The present review systematically analyzed clinical studies investigating the efficacy of resin infiltration on post-orthodontic or non-post-orthodontic, white spot lesions (WSL), or fluorosis. Materials Five electronic databases (Central, PubMed, Ovid MEDLINE, Ovid EMBASE, LILACS) were screened. Article selection and data abstraction were done in duplicate. No language or time restrictions were applied. Outcomes were visual-tactile or DIAGNOdent measurements. Results Eleven studies with 1834 teeth being affected in 413 patients were included. Nine studies were randomized control trials, one a prospective cohort study, and one had an unclear study design. Meta-analysis could be performed for “resin infiltration vs. untreated control,” “resin infiltration vs. fluoride varnish,” and “resin infiltration without bleaching vs. resin infiltration with bleaching.” WSL being treated with resin infiltration showed a significantly higher optical improvement than WSL without any treatment (standard mean difference (SMD) [95% CI] = 1.24 [0.59, 1.88], moderate level of evidence [visual-tactile assessment]) and with fluoride varnish application (mean difference (MD) [95% CI] = 4.76 [0.74, 8.78], moderate level of evidence [DIAGNOdent reading]). In patients with fluorosis, bleaching prior to resin infiltration showed no difference in the masking effect compared to infiltration alone (MD [95% CI] = − 0.30 [− 0.98, 0.39], moderate level of evidence). Conclusion Resin infiltration has a significantly higher masking effect than natural remineralization or regular application of fluoride varnishes. However, although the evidence was graded as moderate, this conclusion is based on only very few well-conducted RCTs. Clinical relevance Resin infiltration seems to be a viable option to esthetically mask enamel white spot lesions and fluorosis.
24
Hou, Guang Ya, Jun Min Qian, Hong Jie Wang, and Zhi Hao Jin. "Effect of Phenolic Resin on the Basic Properties of Woodceramics and Biomorphic SiC Ceramics." Key Engineering Materials 336-338 (April 2007): 1878–81. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.1878.
Full textAbstract:
Biomorphic SiC ceramics were fabricated by infiltrating liquid silicon into woodceramics which were prepared from beech and pine impregnated with phenolic resin (PR) of different viscosity in order to reinforce the cell wall of wood. The viscosity of phenolic resin was adjusted by ethanol according to the weight ratio of PR to ethanol. The samples not impregnated with resin were compared. Effect of viscosity of phenolic resin on the dimension shrinkage, weight loss, porosity and the axial and radial flexural strength were investigated. Microstructural observation and phase identification of woodceramics and biomorphic SiC were performed by SEM and XRD, respectively. The results show that, the lower the viscosity of phenolic resin was, the higher the dimension shrinkage, weight loss and porosity of woodceramics were. Biomorphic SiC was a diphase composite consisting of major phase β-SiC and secondary phase Si. Woodceramics made from pine swelled or broke and strength of woodceramics fabricated from beech declined when higher viscosity resins were impregnated. The flexural strength of biomorphic SiC increased with increasing in viscosity of PR. The axial flexural strength was significantly higher than the radial flexural strength because of anisotropic pore microstructures.
25
Paris, S., W. Hopfenmuller, and H. Meyer-Lueckel. "Resin Infiltration of Caries Lesions." Journal of Dental Research 89, no. 8 (May 26, 2010): 823–26. http://dx.doi.org/10.1177/0022034510369289.
Full text
26
Yu, Sicong, Xufeng Zhang, Xiaoling Liu, Chris Rudd, and Xiaosu Yi. "A Conceptional Approach of Resin-Transfer-Molding to Rosin-Sourced Epoxy Matrix Green Composites." Aerospace 8, no. 1 (December 28, 2020): 5. http://dx.doi.org/10.3390/aerospace8010005.
Full textAbstract:
In this concept-proof study, a preform-based RTM (Resin Transfer Molding) process is presented that is characterized by first pre-loading the solid curing agent onto the preform, and then injecting the liquid nonreactive resin with an intrinsically low viscosity into the mold to infiltrate and wet the pre-loaded preform. The separation of resin and hardener helped to process inherently high viscosity resins in a convenient way. Rosin-sourced, anhydrite-cured epoxies that would normally be regarded as unsuited to liquid composite molding, were thus processed. Rheological tests revealed that by separating the anhydrite curing agent from a formulated RTM resin system, the remaining epoxy liquid had its flowtime extended. C-scan and glass transition temperature tests showed that the preform pre-loaded with anhydrite was fully infiltrated and wetted by the liquid epoxy, and the two components were diffused and dissolved with each other, and finally, well reacted and cured. Composite laminates made via this approach exhibited roughly comparable quality and mechanical properties with prepreg controls via autoclave or compression molding, respectively. These findings were verified for both carbon and ramie fiber composites.
27
Rodriguez-Uicab, Omar, Tannaz Tayyarian, and Jandro L. Abot. "Effect of Curing Temperature of Epoxy Matrix on the Electrical Response of Carbon Nanotube Yarn Monofilament Composites." Journal of Composites Science 6, no. 2 (January 26, 2022): 43. http://dx.doi.org/10.3390/jcs6020043.
Full textAbstract:
In order to evaluate the capability of carbon nanotube yarn (CNTY)-based composites for self-sensing of temperature, the temperature-dependent electrical resistance of CNTY monofilament composites was investigated using two epoxy resins: one that cures at 130 °C (CNTY/ERHT) and one that cures at room temperature (CNTY/ERRT). The effect of the curing kinetics of these epoxy resins on the electrical response of the embedded CNTY was investigated in prior studies. It was observed that the viscosity and curing kinetics affect the level of wetting and resin infiltration, which govern the electrical response of the embedded CNTY. In this work, the cyclic thermoresistive characterization of CNTY monofilament composites was conducted under heating–cooling, incremental heating–cooling, and incremental dwell cycles in order to study the effect of the curing temperature of the epoxy matrix on the electrical response of the CNTY monofilament composites. Both monofilament composites showed nearly linear and negative temperature coefficients of resistance (TCR) of −7.07 × 10−4 °C−1 for specimens cured at a high temperature and −5.93 × 10−4 °C−1 for specimens cured at room temperature. The hysteresis loops upon heating–cooling cycles were slightly smaller for high-temperature cured specimens in comparison to those cured at room temperature. A combination of factors, such as resin infiltration, curing mechanisms, intrinsic thermoresistivity of CNTY, variations in tunneling and contact resistance between the nanotubes and CNT bundles, and the polymer structure, are paramount factors in the thermoresistive sensitivity of the CNTY monofilament composites.
28
Solaman Simon, Louis, A. Karthikeyan, Akhil C.A, and Shilpa Philip. "EFFECTIVENESS OF RESIN INFILTRATION IN MANAGEMENT OF POST ORTHODONTIC WHITE SPOT LESIONS - A CLINICAL STUDY." International Journal of Advanced Research 10, no. 03 (March 31, 2022): 96–102. http://dx.doi.org/10.21474/ijar01/14367.
Full textAbstract:
Objective: To assess the effectiveness and durability of resin infiltration (ICON, DMG, Hamburg, Germany) in the management of post orthodontic white spot lesions. Material & Methods: A clinical trial was conducted among 30 children who had undergone fixed orthodontic therapy presented with white spot lesions (WSLs) on maxillary or mandibular incisors and canines after debonding. Identification of WSLs was done with International Caries Detection and Assessment System (ICDAS) II criteria. The clinical photographs recorded were used to measure the size of lesion. The color assessment of the lesion and sound adjacent enamel was recorded by using spectrophotometer. Area of the lesion was calculated using Image analyzing software. The selected samples were treated with Resin infiltration- Icon, DMG, Germany, The WSLs were evaluated immediately following resin infiltration, 1, 3, 6 and 12 months. Results: There was significant reduction in lesion area, and improvement in color of white spot lesions treated with resin infiltration. Conclusion: Resin Infiltration have desired and durable esthetic improvement in terms of reduction in the area as well as color of post orthodontic white spot lesions.
29
Sarkis, Hilda, Maroun Ghaleb, and Sarah Dabbagh. "White Spot Lesions : Resin Infiltration Technique." International Arab Journal of Dentistry 8, no. 1 (January 2017): 9–14. http://dx.doi.org/10.12816/0034839.
Full text
30
Paris, S., H. Meyer-Lueckel, and A. M. Kielbassa. "Resin Infiltration of Natural Caries Lesions." Journal of Dental Research 86, no. 7 (July 2007): 662–66. http://dx.doi.org/10.1177/154405910708600715.
Full text
31
Wadia, Reena. "Dental fluorosis - bleaching and resin infiltration." British Dental Journal 228, no. 2 (January 2020): 82. http://dx.doi.org/10.1038/s41415-020-1214-6.
Full text
32
Crombie, Felicity, David Manton, Joseph Palamara, and Eric Reynolds. "Resin infiltration of developmentally hypomineralised enamel." International Journal of Paediatric Dentistry 24, no. 1 (February 15, 2013): 51–55. http://dx.doi.org/10.1111/ipd.12025.
Full text
33
Rohym, Shaimaa Mosutafa, Asmaa Youssif Harhash, and Mohammed Farid Riad. "One Year Clinical Evaluation of White Spot Lesions with Newly Introduced Resin Modified Glass-Ionomer in Comparison to Resin Infiltration in Anterior Teeth: a split mouth randomized controlled clinical trial from Egypt." Brazilian Dental Science 24, no. 1 (December 22, 2020): 13p. http://dx.doi.org/10.14295/bds.2021.v24i1.2063.
Full textAbstract:
Objective: to compare the clinical performance of newly introduced resin modified glass ionomer varnish (Clinpro™ XT) versus resin infiltration in treatment of post-orthodontic white spot lesions. Material and Methods: Six participants (70 teeth) were enrolled with post-orthodontic white spot lesions. Randomization was performed according to patient selection for the sealed envelope containing which half will receive the control (resin infiltration (ICON, DMG) and the other will receive the intervention (resin modified glass-ionomer cement varnish (Clinpro™ XT, 3M)). Follow up was done after 1 day, 1 week, 1 month, and 3 months, 6 months and 12 months. The color was assessed by spectrophotometer while the degree of demineralization was measured by Diagnodent pen 2910. Patient satisfaction was assessed using (VAS) Visual analogue scale. Results: Regarding color change, significant improvement in lightness for ICON group, while Clinpro™ XT group, the change was insignificant. The demineralization data revealed significant decrease in demineralization with resin infiltration after immediate application. Clinpro™ XT showed also significant decrease after immediate assessment and significant increase in demineralization in 6 and 12 months. Conclusion: Resin infiltration can be considered more as an alternative treatment rather than fluoride varnish. Clinpro™ XTis considered as a preventive protocol, provided that renewal application is needed after 3 months. Keywords 3M Resin cement; Resin cements; Glass ionomer cements; Fluorides; Follow up studies; Glass ionomer.
34
Lacerda-Santos, Rogério, Izaura Helena Chaves de Meneses, Gêisa Aiane de Morais Sampaio, Matheus Melo Pithon, and Polliana Muniz Alves. "Effect of degree of conversion on in vivo biocompatibility of flowable resin used for bioprotection of mini-implants." Angle Orthodontist 86, no. 1 (May 13, 2015): 157–63. http://dx.doi.org/10.2319/112914-856.1.
Full textAbstract:
ABSTRACT Objective: To test the hypothesis that there is no difference between the biocompatibility and degree of monomer conversion of flowable resins used as bioprotective materials of orthodontic mini-implants. Materials and Methods: Forty-eight male Wistar rats were divided into four groups (n = 12). Group Control (polyethylene), Group Wave, Group Top Comfort, and Group Filtek. The animals were sacrificed after time intervals of 7, 15, and 30 days and tissues were analyzed under optical microscopy for inflammatory infiltrate, edema, necrosis, granulation tissue, multinucleated giant cells, and collagen formation. The degree of conversion was evaluated by the Fourier method. Biocompatibility and degree of conversion were evaluated by the Kruskal-Wallis and Dunn tests, and analysis of variance and the Tukey test, respectively (P < .05). Results: An intense inflammatory infiltrate was observed on the seventh day, with Groups Top Comfort and Filtek differing statistically from Group Control (P = .016). Edema, necrosis, granulation tissue, and giant cells showed greater expressiveness at 7 days, without statistical difference between them (P > .05). For the presence of collagen fibers, Group Top Comfort was shown to differ statistically from Group Control (P = .037) at 15 days and from Groups Filtek and Control (P = .008) at 30 days. Monomer conversion ranged from 62.3% in Group Top Comfort at 7 days to 79.1% in Group Filtek at 30 days. Conclusions: The hypothesis was rejected. The resin Top Comfort demonstrated lower tissue repair capacity with a lower number of collagen fibers compared with Filtek and Wave resins. The resin Top Comfort showed the lowest conversion values during the experiment.
35
Donaldson, Lloyd A., Adya Singh, Laura Raymond, Stefan Hill, and Uwe Schmitt. "Extractive distribution in Pseudotsuga menziesii: effects on cell wall porosity in sapwood and heartwood." IAWA Journal 40, no. 4 (November 16, 2019): 721–40. http://dx.doi.org/10.1163/22941932-40190248.
Full textAbstract:
ABSTRACT Douglas-fir (Pseudotsuga menziesii) has distinctly colored heartwood as a result of extractive deposition during heartwood formation. This is known to affect natural durability and treatability with preservatives, as well as other types of wood modification involving infiltration with chemicals. The distribution of extractives in sapwood and heartwood of Douglas-fir was studied using fluorescence microscopy. Several different types of extractive including flavonoids, resin acids, and tannins were localized to heartwood cell walls, resin canals, and rays, using autofluorescence or staining of flavonoids with Naturstoff A reagent. Extractives were found to infiltrate the cell walls of heartwood tracheids and were also present to a lesser extent in sapwood tracheid cell walls, especially in regions adjacent to the resin canals. Förster resonance energy transfer measurements showed that the accessibility of lignin lining cell wall micropores to rhodamine dye was reduced by about 50%, probably as a result of cell wall-bound tannin-like materials which accumulate in heartwood relative to sapwood, and are responsible for the orange color of the heartwood. These results indicate that micro-distribution of heartwood extractives affects cell wall porosity which is reduced by the accumulation of heartwood extractives in softwood tracheid cell walls.
36
Su, Yu Wu, Chao Zhang, Shan Shan Liu, Liang Yue Pang, Huan Cai Lin, and Qing Hui Zhi. "Effect of Thermal Cycling Aging on the Surface Microhardness and Roughness of Resin-Infiltrated Enamel Lesions." Science of Advanced Materials 13, no. 3 (March 1, 2021): 356–63. http://dx.doi.org/10.1166/sam.2021.3925.
Full textAbstract:
With the widespread use of resin infiltration, its properties have drawn increasing attention. The objective of this study was to investigate the effect of resin infiltration on the surface microhardness and roughness of enamel lesions after thermal cycling aging. Tooth blocks were made from extracted premolars and placed into a control group, resin-infiltrated group or demineralized group. Before and after the aging procedure, the surface microhardness and surface roughness was measured. Before the aging procedure, the surface microhardness of the control group, resin-infiltrated group and demineralized group was 302.14 (±9.77) HV, 146.62 (±8.22) HV, and 28.85 (±2.21) HV (p 0.001), respectively. After the aging procedure, the surface microhardness of the control group, resin-infiltrated group and demineralized group decreased by 9.42%, 16.59%, and 20.75% ( p 0.001), respectively. Before the aging procedure, the surface roughness of the control group, resin-infiltrated group and demineralized group was 0.29 (±0.04) μm, 0.32 (±0.04) μm, and 0.39 (±0.07) μm (p = 0.009), respectively. After the aging procedure, the surface roughness of the control group, resin-infiltrated group and demineralized group increased by 9.85%, 8.31%, and 17.37% (p = 0.634), respectively. Resin infiltration can improve the surface microhardness and surface roughness of demineralized teeth in an artificial enamel caries model. The treatment also shows good aging resistance after thermal cycling. The infiltrant resin provided a suitable material for early enamel caries.
37
Mahmood, Faisal, Muhammad Bader Munir, Ali Altaf, Ajmal Yousaf, Faisal Bhangar, and Syed Muzammil Hussain. "EVALUATION OF SUCCESS OF RESIN INFILTRATION TECHNIQUE IN SUPERFICIAL PROXIMAL CARIOUS LESIONS OF POSTERIOR TEETH." PAFMJ 71, no. 4 (August 26, 2021): 1318–21. http://dx.doi.org/10.51253/pafmj.v71i4.4294.
Full textAbstract:
Objective: To determine the effectiveness of resin infiltration technique in arresting superficial proximal carious lesions of posterior teeth.
Study Design: Quasi experimental study.
Place and Duration of Study: Operative dentistry department, de’ Montmorency College of Dentistry Lahore, from Oct 2018 to Mar 2019.
Methodology: Meeting inclusion criteria were selected. Informed consent was obtained. After application of rubber dam; etchant gel was applied to superficial proximal carious lesions in these patients; water-rinsed and air-dried for 30 sec; resin was then infiltrated into each lesion. Patients were recalled after 6 months for follow up.
Results: Total patients were 30 out of which 18 (60%) were males and 12 (40%) were females. Mean age of patients was 25.77 years ranging from 16-35 years. Success of resin infiltration technique in superficial proximal carious lesions in posterior teeth was 86.7% measured by bitewing radiograph taken on follow up after 6 months to see any progression of carious lesion.
Conclusion: Resin infiltration was effective in 86.7% patients in arresting progress of superficial proximal carious lesions with no significant difference for age and gender. Hence it is suggested that resin infiltration being promising micro invasive approach should be considered in addition to non-operative and operative treatment approaches.
38
Zhao, X., and Y.-F. Ren. "Surface Properties and Color Stability of Resin-Infiltrated Enamel Lesions." Operative Dentistry 41, no. 6 (November 1, 2016): 617–26. http://dx.doi.org/10.2341/15-319-l.
Full textAbstract:
SUMMARY Objectives: To examine the surface topographies, microhardness, and color stability of resin-infiltrated enamel lesions before and after aging challenges in vitro using three-dimensional laser scanning profilometry, surface microhardness testing, spectrophotometry, and scanning electron microscopy. Methods: Forty human third molars were embedded in epoxy resin, and each tooth was prepared to have two white spot lesions and one sound enamel area. One white spot lesion received resin infiltration and the other was untreated. Ten specimens were subjected to thermocycling for 10,000 cycles, 10 specimens were immersed in coffee solutions, and 10 specimens were placed in water storage. Surface area roughness (Sa), Vickers microhardness (VHN), and CIE L*a*b* color values were measured on sound enamel, resin-infiltrated lesions, and untreated lesions before and after aging. The surface morphology of resin-infiltrated lesions was observed after aging under scanning electron microscopy and compared with 10 specimens that were not subjected to aging challenge. Results: Resin infiltration increased the surface microhardness of the enamel lesions from 89.3 to 212.0 VHN. The surface microhardness of resin-infiltrated enamel lesions was not significantly affected by aging. The surface roughness of resin-infiltrated lesions (0.32–0.37 μm) was greater than that of sound enamel (0.05–0.06 μm) and untreated lesions (0.12–0.13 μm). Thermocycling and water storage further increased surface roughness of resin-infiltrated surfaces. Resin-infiltrated enamel lesions showed greater discoloration than sound enamel surfaces. Surface microfissures and microcracks were observed on resin-infiltrated enamel lesions after thermocycling. Conclusions: Surface hardness of enamel lesions increased significantly after resin infiltration and remained stable following thermocycling. Surface roughness and color stability of resin-infiltrated enamel lesions were less than ideal and might further deteriorate after aging in the oral environment.
39
Meyer-Lueckel, H., and S. Paris. "Improved Resin Infiltration of Natural Caries Lesions." Journal of Dental Research 87, no. 12 (December 2008): 1112–16. http://dx.doi.org/10.1177/154405910808701201.
Full textAbstract:
In artificial lesions, improved penetration and the caries-inhibiting properties of infiltrating resins could be observed with increasing penetration coefficients (PCs). The aim of the present study was to compare the penetration abilities of an experimental ‘infiltrant’ into natural lesions with those of an adhesive in vitro. Extracted human molars and premolars showing proximal white spots were cut across the lesions perpendicular to the surface. Corresponding lesion halves were etched for 120 sec with 15% hydrochloric acid gel and were subsequently treated with either an adhesive (PC: 31 cm/sec) or an infiltrant (PC: 273 cm/sec). Specimens were observed by confocal microscopy and transverse microradiography. Penetration depths of the adhesive were significantly lower compared with those of the infiltrant (p < 0.001; Wilcoxon). It can be concluded that resins with higher PCs (infiltrants) show superior ability to penetrate natural lesions compared with resins with lower PCs.
40
Bredenkamp, B. V., and N. J. J. van Vuuren. "Pruning and Resin Infiltration ofPinus caribaeavar.caribaeain Zululand." South African Forestry Journal 140, no. 1 (March 1987): 29–34. http://dx.doi.org/10.1080/00382167.1987.9630066.
Full text
41
Polychronopoulos, Nickolas D., and T. D. Papathanasiou. "Pin-assisted resin infiltration of porous substrates." Composites Part A: Applied Science and Manufacturing 71 (April 2015): 126–35. http://dx.doi.org/10.1016/j.compositesa.2015.01.007.
Full text
42
McDonald, Kent L. "Rapid Embedding Methods into Epoxy and LR White Resins for Morphological and Immunological Analysis of Cryofixed Biological Specimens." Microscopy and Microanalysis 20, no. 1 (November 19, 2013): 152–63. http://dx.doi.org/10.1017/s1431927613013846.
Full textAbstract:
AbstractA variety of specimens including bacteria, ciliates, choanoflagellates (Salpingoeca rosetta), zebrafish (Danio rerio) embryos, nematode worms (Caenorhabditis elegans), and leaves of white clover (Trifolium repens) plants were high pressure frozen, freeze-substituted, infiltrated with either Epon, Epon-Araldite, or LR White resins, and polymerized. Total processing time from freezing to blocks ready to section was about 6 h. For epoxy embedding the specimens were freeze-substituted in 1% osmium tetroxide plus 0.1% uranyl acetate in acetone. For embedding in LR White the freeze-substitution medium was 0.2% uranyl acetate in acetone. Rapid infiltration was achieved by centrifugation through increasing concentrations of resin followed by polymerization at 100°C for 1.5–2 h. The preservation of ultrastructure was comparable to standard freeze substitution and resin embedding methods that take days to complete. On-section immunolabeling results for actin and tubulin molecules were positive with very low background labeling. The LR White methods offer a safer, quicker, and less-expensive alternative to Lowicryl embedding of specimens processed for on-section immunolabeling without traditional aldehyde fixatives.
43
Perdigão, J., VQ Lam, BG Burseth, and C. Real. "Masking of Enamel Fluorosis Discolorations and Tooth Misalignment With a Combination of At-Home Whitening, Resin Infiltration, and Direct Composite Restorations." Operative Dentistry 42, no. 4 (July 1, 2017): 347–56. http://dx.doi.org/10.2341/16-181-t.
Full textAbstract:
SUMMARY This clinical report illustrates a conservative technique to mask enamel discolorations in maxillary anterior teeth caused by hypomineralization associated with enamel fluorosis and subsequent direct resin composite to improve the anterior esthetics. The treatment consisted of at-home whitening with 10% carbamide peroxide gel with potassium nitrate and sodium fluoride in a custom-fitted tray to mask the brown-stained areas, followed by resin infiltration to mask the white spot areas. An existing resin composite restoration in the maxillary right central incisor was subsequently replaced after completion of the whitening and resin infiltration procedures, whereas the two misaligned and rotated maxillary lateral incisors were built up with direct resin composite restorations to provide the illusion of adequate arch alignment, as the patient was unable to use orthodontic therapy.
44
Gu, Xi, Lin Yang, Deqin Yang, Yuan Gao, Xiaolei Duan, Xin Zhu, He Yuan, and Jiyao Li. "Esthetic improvements of postorthodontic white-spot lesions treated with resin infiltration and microabrasion: A split-mouth, randomized clinical trial." Angle Orthodontist 89, no. 3 (February 5, 2019): 372–77. http://dx.doi.org/10.2319/041218-274.1.
Full textAbstract:
ABSTRACT Objective: To compare the esthetic improvement between postorthodontic white-spot lesions (WSLs) treated by resin infiltration and microabrasion for 12 months. Materials and Methods: A total of 20 patients with 128 teeth with postorthodontic WSLs were recruited. A simple randomized, split-mouth, positive controlled design was used to allocate patients to resin infiltration or microabrasion groups. The lesion area ratio (R value) was calculated between the area of a WSL and the labial surface of the corresponding tooth based on standardized clinical photographs. The color change (ΔE) of each tooth was measured with a Crystaleye spectrophotometer (Olympus, Tokyo, Japan). Every measurement was taken before treatment (T0) and at different time points after treatment: 1 week (T1), 6 months (T6), and 12 months (T12). Results: A total of 16 patients with 108 trial teeth were available at T12. Each group had 54 trial teeth. In both groups, there was a significant decrease in R value and ΔE between T1 and T0 (P < .0001). In the infiltration group, the R value and ΔE had no significant changes over time from T1 to T12. In the microabrasion group, the R value and ΔE decreased significantly from T1 to T6. The R value of resin infiltration was lower when compared with microabrasion at every recall point (P < .001). The ΔE had no significant differences between the two groups at any timepoint. Conclusions: Resin infiltration and microabrasion improved the esthetic appearance of WSLs and showed sufficient durability for 12 months. Resin infiltration showed a better esthetic improvement effect when compared with microabrasion at 12 months.
45
Peters, M. C., A. R. Hopkins, L. Zhu, and Q. Yu. "Efficacy of Proximal Resin Infiltration on Caries Inhibition: Results from a 3-Year Randomized Controlled Clinical Trial." Journal of Dental Research 98, no. 13 (September 16, 2019): 1497–502. http://dx.doi.org/10.1177/0022034519876853.
Full textAbstract:
This study reports 3-y outcomes of a split-mouth randomized clinical trial. Resin infiltration’s capacity to arrest caries lesion progression in noncavitated proximal lesions is affirmed. Forty-two consented young adults, blinded to tooth surface allocation, were treated with resin infiltration on 1 randomly selected surface and concurrently experienced a mock infiltration procedure on another. Both treatments were provided as an adjunct to the currently accepted standard-of-care regimen (periodic prophylaxis and serial fluoride varnish applications) appropriate for the management of high caries risk. Challenging periods of low oral hygiene compliance were expected. The primary outcome measure was 3-y radiographic lesion progression. Blinded investigators evaluated each study surface for lesion progression with a series of images obtained at intervals over the 3-y course of study. Proportions of progressing lesions were compared with McNemar’s test. Twenty-nine noncavitated lesion pairs in permanent posterior teeth demonstrating caries penetrating into inner enamel or outer dentin were included in the analyses. No adverse events were reported. Radiographic progression was recorded in 4 of 29 infiltrated lesions (14%) and 14 of 29 control lesions (48%, P < .003). Adjunct resin infiltration demonstrated a high 3-y efficacy of 71% (relative risk reduction). The prevented fraction was 86% for infiltration versus 52% for controls. Resin infiltration was 100% successful in arresting caries progression in inner enamel lesions (E2) and 64% in outer dentin lesions (D1). Supplementary microinvasive resin infiltration is significantly more efficacious in reducing proximal lesion progression than management by standard noninvasive therapy alone. Long-term results may shed light on whether this represents the arrest or delay of the caries disease process (ClinicalTrials.gov NCT01584024).
46
Vallejo Ardila, Dora Lucia, Katrina A. Walsh, Theodora Fifis, Rita Paolini, Georgios Kastrappis, Christopher Christophi, and Marcos Vinicius Perini. "Immunomodulatory effects of renin–angiotensin system inhibitors on T lymphocytes in mice with colorectal liver metastases." Journal for ImmunoTherapy of Cancer 8, no. 1 (May 2020): e000487. http://dx.doi.org/10.1136/jitc-2019-000487.
Full textAbstract:
BackgroundIt is now recognized that many anticancer treatments positively modulate the antitumor immune response. Clinical and experimental studies have shown that inhibitors of the classical renin–angiotensin system (RAS) reduce tumor progression and are associated with better outcomes in patients with colorectal cancer. RAS components are expressed by most immune cells and adult hematopoietic cells, thus are potential targets for modulating tumor-infiltrating immune cells and can provide a mechanism of tumor control by the renin–angiotensin system inhibitors (RASi).AimTo investigate the effects of the RASi captopril on tumor T lymphocyte distribution in a mouse model of colorectal liver metastases.MethodsLiver metastases were established in a mouse model using an autologous colorectal cancer cell line. RASi (captopril 750 mg/kg) or carrier (saline) was administered to the mice daily via intraperitoneal injection, from day 1 post-tumor induction to endpoint (day 15 or 21 post-tumor induction). At the endpoint, tumor growth was determined, and lymphocyte infiltration and composition in the tumor and liver tissues were analyzed by flow cytometry and immunohistochemistry (IHC).ResultsCaptopril significantly decreased tumor viability and impaired metastatic growth. Analysis of infiltrating T cells into liver parenchyma and tumor tissues by IHC and flow cytometry showed that captopril significantly increased the infiltration of CD3+ T cells into both tissues at day 15 following tumor induction. Phenotypical analysis of CD45+ CD3+ T cells indicated that the major contributing phenotype to this influx is a CD4 and CD8 double-negative T cell (DNT) subtype, while CD4+ T cells decreased and CD8+ T cells remained unchanged. Captopril treatment also increased the expression of checkpoint receptor PD-1 on CD8+and DNT subsets .ConclusionCaptopril treatment modulates the immune response by increasing the infiltration and altering the phenotypical composition of T lymphocytes and may be a contributing mechanism for tumor control.
47
Zotti, Francesca, Luca Albertini, Nicolò Tomizioli, Giorgia Capocasale, and Massimo Albanese. "Resin Infiltration in Dental Fluorosis Treatment—1-Year Follow-Up." Medicina 57, no. 1 (December 29, 2020): 22. http://dx.doi.org/10.3390/medicina57010022.
Full textAbstract:
Background and objective: Dental fluorosis is a disease affecting dental hard tissues featured with white or yellowish lesions. Several treatments are proposed in the literature, some even invasive. This clinical study aimed to evaluate the effectiveness of resin infiltration in terms of lesions resolution, trend of sensitive teeth and satisfaction of patients over time. Methods and material: 200 fluorosis lesions were treated using ICON infiltrating resin (DMG, Hamburg, Germany). Parameters related to patients were collected by a questionnaire and analyzed aesthetic dissatisfaction about lesions, Shiff Air Index Sensitive Scale, sensitive teeth after treatment, the satisfaction of duration of treatment. The same operator measured dimensions of lesions Tooth Surface Index of Fluorosis (TSIF) and numbers of etching cycles needed for treating lesions. Statistical analysis was performed. The follow-up was of 1-year a measurement were performed at baseline (t0), immediately after the treatment (t1) and every three months during the observation period. Results: All lesions disappeared after one treatment. Pain or sensitive teeth were reported inside the 72 h and they disappeared after. Statistical analysis showed highly statistically correlation between etching cycles and the dimension of lesions and TSIF at the time-points evaluated as well as for pain during treatment, whereas a statistical significance was not noticed where etching cycles were correlated to sensitive teeth after 72 h. Overall, the treatment was found to be statistically significantly associated with differences in answers of aesthetic dissatisfaction between t0 and t1 and those collected between t1 and t2. Between t2 and t3 and between t3 and t4 no statistical differences were found in answers of patients about dissatisfaction, indicating the stability of the results. Conclusions: The ICON resin infiltration technique was found to be effective in lesions resolution with steady results.
48
Todorova, Veselina I., Ivan A. Filipov, Abdul F. Khaliq, and Pankaj Verma. "Aesthetic Improvement of White Spot Fluorosis Lesions with Resin Infiltration." Folia Medica 62, no. 1 (March 31, 2020): 208–13. http://dx.doi.org/10.3897/folmed.62.e47731.
Full textAbstract:
Dental fluorosis changes the colour and/or structure of enamel, leading to an unaesthetic appearance. One of the main goals in the treatment is aesthetic improvement of the affected teeth. Two clinical cases of patients with white spot fluorosis lesions on frontal teeth are presented. All treated teeth are infiltrated with low-viscous light-curing resin (ICON, DMG). A significant improvement in the aesthetic appearance of all the treated tooth surfaces is visible immediately after resin infiltration, and in most of the teeth - a complete disappearance of the white spots. Resin infiltration is an alternative micro-invasive approach for treatment of white spot lesions of different origin. It allows a quick and natural recovery of the affected teeth.
49
Szewczak, Ilona, Beata Kubić-Filiks, and Jolanta Szymańska. "Treatment of lesions on the vestibular surfaces of permanent teeth with the use of liquid resin of low viscosity." Polish Journal of Public Health 129, no. 3 (September 1, 2019): 110–12. http://dx.doi.org/10.2478/pjph-2019-0025.
Full textAbstract:
Summary One of the methods of treatment of initial stages of dental caries, lesions characterized by demineralization, and white spots on the vestibular surfaces of permanent teeth, is infiltration with liquid resin of low viscosity. It is a non-invasive method which is worth recommending and popularizing among patients. On the basis of available literature the therapeutic method of infiltration with liquid resin of low viscosity is presented. The use of resin of low viscosity allows for obtaining appropriate esthetic and functional appearance of teeth, which is a vital step in improvement of quality of social and professional life of patient.
50
Jang, Eunjeong, Soyoung Park, Jonghyun Shin, Shin Kim, and Taesung Jeong. "Microleakage Assessment of Resin Infiltration Combined Restoration in Artificial Decalcified-Cavitated Lesion." JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY 47, no. 3 (August 31, 2020): 257–65. http://dx.doi.org/10.5933/jkapd.2020.47.3.257.
Full textAbstract:
This study was performed to evaluate the restoration combined with resin infiltration (RI) of early cavitated smooth surface caries lesion in terms of microleakage. Flowable resin and resin-modified glass ionomer cement (RMGIC) were compared.Sound 20 extracted 3rd molars were divided into 2 groups randomly. Artificial decalcified lesion was induced. Cavities were prepared on the mesial and distal surfaces, and randomly set as experimental and control group. RI was applied to the experimental group before cavity restoration. The control group was restored without RI. In group I and II, flowable resin and RMGIC was used for restoration respectively. After thermocycling and silver nitrate immersion, microleakage was assessed by μ-CT.Depth of microleakage was lower in experimental group than control group only in group II (p = 0.05). Microleakage depth was lower in group II than group I in both experimental and control groups (p = 0.05).RI pretreatment before restoration of early cavitated caries lesions might reduce the microleakage and help long-term maintenance of restoration. In this study, RMGIC was less polymerization shrinkage. Restoration with RMGIC after RI pretreatment reduced the microleakage of the restoration compared to the flowable resin.