Academic literature on the topic 'Microabrasion'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Microabrasion.'
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.
Journal articles on the topic "Microabrasion"
1
Bertoldo, Carlos Eduardo Dos Santos, Nubia Inocencya Pavesi Pini, Diogo De Azevedo Miranda, Anderson Catelan, Gláucia Maria Bovi Ambrosano, Débora Alves Nunes Leite, Flávio Henrique Baggio Aguiar, and José Roberto Lovadino. "PHYSICOCHEMICAL PROPERTIES OF ENAMEL AFTER MICROABRASION TECHNIQUE." Journal of Research in Dentistry 2, no. 2 (May 3, 2014): 176. http://dx.doi.org/10.19177/jrd.v2e22014176-88.
Full textAbstract:
AIM: This study aimed to evaluate the enamel microhardness, surface roughness, and chemical composition after microabrasion technique, followed by polishing and different immersion times in artificial saliva. MATERIALS AND METHODS: Ninety enamel blocks (25 mm2) from bovine incisors were divided into two groups (G1 and G2), and then subdivided in five subgroups (n = 9) according to their microabrasion treatment and polishing with a diamond paste: 35% phosphoric acid and pumice (H3PO4+Pum) and polishing; just H3PO4+Pum; 6.6% hydrochloric acid and silica (HCl+Sil) and polishing; just HCl+Sil; and control (no treatment). For G1, roughness and microhardness analyses were performed before (L1) and after (L2) microabrasion. After 15 (L3) and 30 (L4) days of immersion in artificial saliva, microhardness analysis was also performed. After (L4) analysis, the specimens were subjected to SEM analysis. G2 was used for the chemical analysis using energy dispersion testing (EDS). The data was subjected to statistical analysis (α = 5%). For roughness, L2 presented higher values than L1, except for the polished groups. For microhardness, L2 presented higher values than L1, except for unpolished groups. The L3 and L4 did not differ and were higher than L1. RESULTS: No changes were observed in the phosphorus concentrations of the microabrasioned enamel. However, the specimens treated with HCl+Sil were observed as having decreased calcium and increased chlorine and silica on the EDS test. CONCLUSION: Microabrasion followed by polishing and immersion in artificial saliva for 15 days is enough to increase the microhardness of microabrasioned enamel surfaces, although the microabrasion procedure can alter the mineral content of the enamel.
2
Ritter, André V. "Microabrasion." Journal of Esthetic and Restorative Dentistry 17, no. 6 (November 2005): 384. http://dx.doi.org/10.1111/j.1708-8240.2005.tb00477.x.
Full text
3
Sundfeld, D., CC Pavani, NIP Pini, LS Machado, TC Schott, and RH Sundfeld. "Enamel Microabrasion and Dental Bleaching on Teeth Presenting Severe-pitted Enamel Fluorosis: A Case Report." Operative Dentistry 44, no. 6 (November 1, 2019): 566–73. http://dx.doi.org/10.2341/18-116-t.
Full textAbstract:
SUMMARY The present clinical case report describes the clinical steps of enamel microabrasion associated with dental bleaching to restore severely-pitted fluorosed teeth. The process of removing the fluorotic superficial stains started by using macroabrasion with a water-cooled fine tapered 3195 FF diamond bur. Rubber dam isolation of the operative field was used to remove the remaining enamel stains and superficial irregularities with the Opalustre microabrasive compound (6.6% hydrochloric acid associated with silicon carbide particles) followed by polishing using fluoridated paste and subsequent 2% neutral fluoride gel topical application. After one month, dental bleaching was performed using 10% carbamide peroxide in custom-formed acetate trays for two hours/day for 42 days. The association of enamel microabrasion with dental bleaching was effective for reestablishing the dental esthetics of a patient with severe dental fluorosis.
4
SARI, Maulidia Indah, and Irmaleny SATIFIL. "A simple microabrasion technique as aesthetic approach on fluorosis of anterior teeth." Journal of Syiah Kuala Dentistry Society 6, no. 1 (July 26, 2021): 24–29. http://dx.doi.org/10.24815/jds.v6i1.21890.
Full textAbstract:
ABSTRACT Dentistry treatment is not only focused on restoring the function of mastication but also onthe aesthetic problem. Fluorosis is one of the aesthetic problems caused by excessive fluoride intakeduring email formation and produced color changes on the surface of the email. Fluorosis was notaffected by the aesthetics but also influenced the confidence of the patient. The Microabrasion techniqueis an option for fluorosis because it is conservative treatment with good results. A 20-year-old womanwho came to the Dental Conservation clinic complained that she wants to remove the brown color andwhite spots seen on the front teeth, which significantly interfere with her appearance. Based on clinicalexamination, many cavities were found in the back teeth of the upper and lower jaw. The results of thehistory and clinical study revealed that the patient had fluorosis in her teeth. Microabrasion was carriedout using Opalustre (ultradent). This material was applied to the tooth surface and rubbed using anapplicator (opal bristle) for 60 seconds. Then applied fluoride gel paste with finishing cup opal.Treatment results showed changes in tooth color, brown and white patches disappeared. Microabrasionis the first choice for aesthetic treatment in fluorosis and has shown satisfying results to restore thepatient's aesthetics problem. KEYWORDS: Fluorosis, microabrasion technique
5
Elkhazindar, M. M., and R. R. Welbury. "Enamel Microabrasion." Dental Update 27, no. 4 (May 2, 2000): 194–96. http://dx.doi.org/10.12968/denu.2000.27.4.194.
Full text
6
Robb, N. D. "Enamel Microabrasion." Journal of Dentistry 21, no. 3 (June 1993): 186. http://dx.doi.org/10.1016/0300-5712(93)90032-l.
Full text
7
Safitri, Novira Mutia, Haru Setyo Anggani, Miesje Karmiati Purwanegara, and Sariesendy Sumardi. "ENAMEL SURFACE QUALITY IMPROVEMENT IN WHITE SPOT LESIONS AFTER ORTHODONTIC TREATMENT USING A MICROABRASION TECHNIQUE WITH FLUORIDE OR CALCIUM PHOSPHOPEPTIDE-AMORPHOUS CALCIUM PHOSPHATE APPLICATION." International Journal of Applied Pharmaceutics 9 (January 1, 2018): 114. http://dx.doi.org/10.22159/ijap.2017.v9s2.28.
Full textAbstract:
Objectives: White spot lesions after fixed orthodontic treatment will increase bacterial plaque formation due to increased enamel surface roughness. The aim of this study was to analyze the surface roughness of white spot lesions on enamel after a microabrasion technique, a microabrasion technique combined with calcium phosphopeptide-amorphous calcium phosphate (CPP-ACP) application, and a microabrasion technique combined with fluoride application.Methods: Artificially induced white spot lesions on the enamel surfaces of 42 maxillary first premolars were randomly assigned into one of three treatment groups (n=14): (a) A microabrasion technique, (b) a microabrasion technique combined with CPP-ACP application, and (c) a microabrasion technique combined with fluoride application. A Mitutoyo SJ-301 surface roughness tester was used to measure differences in surface roughness before and after treatment, and the after treatment measurements were compared among the three groups.Results: A significant difference in surface roughness was noted for the white spot lesions on enamel before and after treatment in all groups (p<0.05). A significant difference was also found when comparing the after treatment surface roughness in all groups.Conclusion: The combination of the microabrasion technique with CPP-ACP application significantly reduced enamel surface roughness when compared to microabrasion alone or the combination of microabrasion and fluoride application.
8
Angriawan, Irene Pratami, Haru Setyo Anggani, Haru Setyo Anggani, Nada Ismah, and Nada Ismah. "COLOR CHANGES OF POST-DEBONDING WHITE SPOT LESION AFTER MICROABRASION TECHNIQUE WITH FLUORIDE AND CASEIN PHOSPHOPEPTIDE-AMORPHOUS CALCIUM PHOSPHATE APPLICATION." Asian Journal of Pharmaceutical and Clinical Research 11, no. 13 (April 26, 2018): 196. http://dx.doi.org/10.22159/ajpcr.2018.v11s1.26605.
Full textAbstract:
Objective: The prevalence of enamel demineralization among patients after orthodontic treatment is about 50%, which begins with the formation of white spot lesions. The presence of these lesions causes esthetic problems. The aim of this study was to quantify the color changes in post-debonding white spot lesions after microabrasion technique with fluoride and casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) application.Materials and Methods: This study used 42 first premolar teeth that had been extracted, then were soaked for 96 h in a demineralization solution (pH 4, 37°C) to form an artificial white spot lesions. Samples were randomly divided into three treatment groups (n=14): (A) Microabrasion technique only; (B) microabrasion technique with 10% CPP-ACP paste application; and (C) microabrasion technique with 1.23% APF gel application. All groups were assigned to pH cycling for 10 days. The color change was determined using spectrophotometer at 3 different time points, which were measured before and after production of the artificial white spot lesions, and after the artificial white spot lesions were treated.Results: This study showed that there was a significant difference in the color of the artificial white spot lesions after microabrasion technique with CPP-ACP application.Conclusion: Microabrasion technique with CPP-ACP application was giving better result in changing the color of white spot lesions than only microabrasion technique and microabrasion technique with fluoride application.
9
Balan, Biji, Chengappa Madanda Uthaiah, Sreejesh Narayanan, and Priyadarshini Mookalamada Monnappa. "Microabrasion: An Effective Method for Improvement of Esthetics in Dentistry." Case Reports in Dentistry 2013 (2013): 1–4. http://dx.doi.org/10.1155/2013/951589.
Full textAbstract:
Enamel microabrasion can eliminate enamel irregularities and discoloration defects, thus improving the appearance of teeth. This paper presents the latest treatment protocol of enamel microabrasion to remove stains on the enamel surface. It has been verified that teeth submitted to microabrasion acquire a yellowish colour because of the thinness of the remaining enamel, revealing the colour of dentinal tissue to a greater degree. Enamel microabrasion is a technique that can be used to correct discoloured enamel. Enamel microabrasion was developed in the mid-1980s as a method of eliminating enamel discolouration defects and improving the appearance of teeth. Several years after the method was developed, much has been learned about this technique, long-term results of treatment, and microscopic changes to the enamel surface that have distinguishable clinical implications. In addition, certain patients can benefit from enamel microabrasion to yield attractive cosmetic results. The aim of this study was to report the clinical case of a male patient of 25 years with moderate fluorosis, whose smile was re-established by the use of an enamel microabrasion technique, with 18% hydrochloric acid and pumice slurry shown to be a safe and efficient method for removing fluorosis stains.
10
Perete-de-Freitas, Camila Evelyn, Paula Damasceno Silva, and André Luis Faria-e-Silva. "Impact of Microabrasion on the Effectiveness of Tooth Bleaching." Brazilian Dental Journal 28, no. 5 (September 2017): 612–17. http://dx.doi.org/10.1590/0103-6440201601494.
Full textAbstract:
Abstract The aim of the present study was to evaluate the effect of prior microabrasion on the teeth color change and tooth bleaching effectiveness. Eight sound molars were mesio-distally sectioned and the halves were randomly allocated to receive enamel microabrasion or non-abrasion (control) in one of surfaces (buccal or lingual), while the remaining surface received the other treatment. The tooth color on baseline was evaluated by spectrophotometer (CieL*a*b system). After the microabrasion procedure, the tooth color was measured again. Following, the specimens were bleached with 35% hydrogen peroxide for two sessions with one-week interval. The color was re-evaluated 7 days after each section and 30 days after the second session. The effect of enamel microabrasion on color changes was evaluated by paired T-test. Deltas L*, a*, b*, and E were calculated and data submitted to 2-way repeated measure ANOVA followed by Tukey`s test. Paired T-test was also used to assess possible differences on the ultimate color achieved after tooth bleaching. Enamel microabrasion reduced the lightness and increased the redness of specimens. Specimens that received microabrasion presented higher values of ∆L* than control after each bleaching procedure; and higher ∆a* after the 2nd bleaching session. However, the prior enamel microabrasion did not affect the ultimate values of color parameters. Despite enamel microabrasion have modified the tooth color, this procedure did not affect the ultimate results achieved with tooth bleaching using a high-concentrated hydrogen peroxide.
Dissertations / Theses on the topic "Microabrasion"
1
MARTINS, José Lucas Pessoa. "Avaliação da molhabilidade e resistência ao desgaste abrasivo de compósitos do tipo epóxi /quasicristais (AlCuFe)." Universidade Federal de Pernambuco, 2015. https://repositorio.ufpe.br/handle/123456789/17704.
Full textAbstract:
Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-08-18T14:59:23Z
No. of bitstreams: 2
license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5)
KGBA_15022016LUCAS1.pdf: 4588819 bytes, checksum: 532522f49862cfc44ad001b8b5a0413f (MD5)Made available in DSpace on 2016-08-18T14:59:23Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) KGBA_15022016LUCAS1.pdf: 4588819 bytes, checksum: 532522f49862cfc44ad001b8b5a0413f (MD5) Previous issue date: 2015-08-27
CAPEs
No presente trabalho foram produzidos compósitos a base de epóxi reforçados com liga quasicristalina AlCuFe, para ensaios de microabrasão e molhabilidade. A liga AlCuFe foi produzida num forno de indução de soleira fria com materias de até 99,99% de pureza e submetida ao tratamento térmico por 24h a uma temperatura de 750°C. O quasicristal foi utilizado na forma de pó após moagem em moinho planetário. A caracterização do quasicristal (QC) foi realizada com uso das técnicas de difração de raios x (DRX) e microscopia eletrônica de varredura (MEV). Análises de DRX mostraram fase cristalina bem definida para amostras de QC, por sua vez imagens de MEV indicaram morfologia arredondada do QC e com uso do software IMAGE J, foi possível observar diâmetros de partícula em torno de 5,48±1,83μm. Em adição, o pó metálico foi misturado com uma resina epóxi em proporções de 5%, 10% e 15% em volume, sendo a cura estabelecida em temperatura ambiente. Por sua vez, as propriedades de molhabilidade e microabrasão foram avaliadas. Verificamos que, com o aumento na proporção em volume de quasicristal no compósito, ocorreram alterações significativas no módulo do coeficiente de desgaste, bem como obtenção de maiores valores no ângulo de contato, tornando o material mais hidrofóbico. As imagens de MEV do compósito indicaram os mecanismos de desgaste envolvidos durante o ensaio de microabrasão, levando ao aumento da taxa de desgaste em função da proporção volumétrica de QC no compósito.
In this paper were produced epoxy-based composites reinforced with quasicristalina league AlCuFe to microabrasion and wettability tests. The AlCuFe alloy was produced in a cold hearth induction furnace with materials of up to 99.99% purity and subjected to heat treatment for 24 hours at a temperature of 750 ° C. The quasicristal was used in powder form after milling in a planetary mill. The characterization of quasicristal (QC) has been performed using the techniques of X-ray diffraction (XRD) and scanning electron microscopy (SEM). XRD analysis showed well defined crystalline phase for QC samples in turn SEM images indicated rounded morphology and QC using Image J software, it was possible to observe particle diameters around 5.48 ± 1,83μm. In addition, the metal powder was mixed with an epoxy resin proportions of 5%, 10% and 15% by volume being established cure at room temperature. In turn, the properties of wettability and microabrasion were evaluated. We found that, with increasing volume ratio of the composite quasicristal, significant changes in the wear coefficient module and obtaining the higher values of contact angle, making it more hydrophobic. The composite SEM images indicate the wear mechanisms involved during microabrasion test, leading to increased wear rate as a function of the volumetric ratio of QC in the composite.
2
Franco, Laura Molinar. "Remoção de irregularidades superficiais do esmalte dental após a remoção de braquetes ortodônticos : efeito de polimentos superficiais e tempos de análise /." Araçatuba, 2017. http://hdl.handle.net/11449/151818.
Full textAbstract:
Orientador: Renato Herman SundfeldCoorientador: Lucas Silveira Machado
Banca: André Pinheiro de Magalhães Bertoz
Banca: Sergio Kiyoshi Ishikiriama
Banca: Elaine Cristina Guerbach Conti
Banca: Rodolfo Brunieira Anchieta
Resumo: O objetivo deste ensaio clínico foi avaliar o comportamento de dois sistemas de polimento na regularização da superfície do esmalte dental, que apresentava-se rugosa e irregular após a remoção de braquetes ortodônticos. As variáveis de resposta foram: rugosidade superficial, luminosidade, morfologia, textura e sensibilidade. Fizeram parte dessa pesquisa clínica 30 voluntários. Os fatores em estudo foram: as técnicas de poli- mento superficial em dois níveis: Técnica 1 (discos de óxido de alumínio) e Técnica 2 (produto ácido-abrasivo), e o tempo de análise em 5 níveis: T0 (baseline), T1 (imedia- tamente após os polimentos superficiais), T2 (após polimento final), T3 (7 dias após os procedimentos) e T4 (6 meses após os procedimentos). Os dados representados por escores foram analisados considerando distribuição multinomial; os dados numéricos foram analisados como medidas repetidas no tempo, a um nível de significância de 5%. Nas análises de rugosidade superficial e luminosidade, não houve diferença estatística entre as técnicas em todos os tempos analisados. Nas análises por score, dentro de cada tempo, verificou-se igualdade significativa apenas no baseline; nos demais tempos foram observadas irregularidades superficiais estatisticamente superiores para a Técnica 1. Nenhum paciente apresentou sensibilidade dental. Ambas as técnicas foram eficientes; porém a maior lisura foi adquirida quando a Técnica 2 foi utilizada.
Abstract: This clinical study evaluated the behavior of two surface polishing systems in the regularization of the enamel surface, which was rough and irregular after orthodontic brackets debonding. The response variables were: surface roughness, lightness, morphology, texture and sensitivity. Thirty volunteers were part of this clinical research. The factors under study were: Surface polishing at two levels: Technique 1 (aluminum oxide disks) and Technique 2 (enamel microabrasive product); and the Time of analysis at 5 levels: T0 (after surface polishing), T1 (immediately after surface polishing), T2 (after final polishing), T3 (7 days after surface polishing) and T4 (6 months after surface polishing). The data represented by scores were analyzed considering multinomial distribution; the numerical ones were analyzed as measures repeated in time, at a significance level of 5%. In the analysis of surface roughness and lightness, there was no statistical difference between the polishing techniques at all times analyzed. In the other analyzes, within each time, significant equality was observed only in the baseline, while in the other times superficial irregularities were statistically superior for Technique 1. No patient presented dental sensitivity. Both techniques were efficient; however, the higher surface smoothness was observed on the dental enamel surface polished with the Technique 2
Doutor
3
湯翠明 and Sui-ming Lily Tong. "The clinical and microscopic effects of vital bleaching and enamel micro-abrasion on surface enamel." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B30433204.
Full text
4
Tong, Sui-ming Lily. "The clinical and microscopic effects of vital bleaching and enamel micro-abrasion on surface enamel /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21129678.
Full text
5
Lima, Júlia Magalhães da Costa. "Análise da profundidade de desgaste e da perda mineral no esmalte subjacente à microabrasão após técnica microabrasiva." Universidade Federal da Paraíba, 2009. http://tede.biblioteca.ufpb.br:8080/handle/tede/6669.
Full textAbstract:
Made available in DSpace on 2015-05-14T12:56:05Z (GMT). No. of bitstreams: 1
arquivototal.pdf: 2455029 bytes, checksum: 0889fcfcf64d79338e5014d0a4360899 (MD5)
Previous issue date: 2009-12-11Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
The main effect of the microabrasion in the enamel is significant erosion. However, there is a gap in the literature about validated and reproducible assessment of the depth of erosion in the enamel surface which is originally curve. AIMS: Evaluate depth of erosion and mineral loss of enamel produced by microabrasion technique in original coronary surface of human teeth. METHODS AND MATERIALS: 40 extracted human molars were randomly spited in four groups, with 10 specimens each, in accordance with the microabrasive treatment: AC- 18% hydrochloric acid and pumice, AF 37% phosphoric acid and pumice, OP Opalustre and WRM Whiteness RM. Each specimens had buccal surface´s laterals isolated so that the central area received the microabrasion treatment. After this procedure, transverse slices not demineralized were prepared and submitted to microradiography and analysis in Polarized Light Microscope. One own terminology had created for the morphology of the interface enamel normal-microabrasioned. This served as base to introduction of a profilometry technique with analysis of digital images, in order to get the depth of erosion on microabrasion´s area. The Intraclass Correlation Test was applied to test technique´s reproducibility. The mineral loss and the depth which it happened had analyzed by transverses plotted at equidistant points of the limit enamel normal-microabrasioned. The dates were analyzed with ANOVA test (p < 0.05). RESULTS: The profilometry technique achieved a good reproducibility (Intraclass Correlation Test of 0,9998) and was validated internally. The AC group was the most aggressive, with a greater depth of erosion (110,51 ± 41,21 μm), and a greater mineral loss (13 ± 3 peso %), with significant difference between WRM group (p < 0,05; 9,41± 4,4 peso %) and OP group (p < 0,05; 9,0 ± 3,8 peso %). The OP group, on the other hand, was the less aggressive, with the lowest values in all parameters analyzed, presenting depth of erosion less than AC group (p < 0,0001), WRM group (p < 0,001; 86,24 ± 27,99 μm) and AF group (p < 0,05; 74,46 ± 42,06 μm). The others two groups achieved intermediate results for depth of erosion and mineral loss. The depth of mineral loss was greater than on AF group (31,38 ± 20,30 μm), however, there wasn´t statistical difference between the groups. CONCLUSIONS: Based on own terminology for the interface enamel normalmicroabrasioned and on the implementation of new technique of profilometry, the agents tested showed a significant difference in the depth of erosion, which was consistent with the mineral loss. However, there wasn´t difference in the depth of mineral loss. Furthermore the new technique of profilometry is proposed to fill a gap in the literature, allowing the determination of physical depth of erosion in areas naturally curves of hard biological tissues.
O principal efeito da microabrasão no esmalte dental é uma erosão significativa. Porém, existe uma lacuna na literatura no que concerne à avaliação validada e reprodutível da profundidade de desgaste na superfície dental natural. OBJETIVOS: Avaliar a profundidade de desgaste e a perda mineral do esmalte dentário resultante da técnica de microabrasão na superfície coronária original de dentes humanos. MATERIAIS E MÉTODOS: 40 terceiros molares humanos extraídos foram divididos aleatoriamente em 4 grupos, de 10 espécimes cada, de acordo com o material microabrasivo utilizado: AC - ácido clorídrico a 18% e pedra-pomes, AF - ácido fosfórico a 37% e pedra-pomes, OP - Opalustre® e WRM - Whiteness RM®. Cada elemento teve as laterais da face vestibular protegidas para que apenas a área central fosse exposta aos agentes microabrasivos. Após o procedimento de microabrasão, cortes transversais não desmineralizados foram preparados e submetidos à radiomicrografia e análise em Microscopia de Luz Polarizada. Uma terminologia própria foi formulada para a morfologia da interface esmalte normalmicroabrasionado. Esta serviu de base à introdução de uma Técnica de Perfilometria com Análise de Imagens Digitais, com o intuito de obter a profundidade de desgaste ao longo da área microabrasionada. O teste de correlação intraclasse foi aplicado para testar a reprodutibilidade da técnica. A quantidade da perda mineral e a profundidade em que esta ocorreu foram analisadas em transversais traçadas em pontos eqüidistantes do limite esmalte normal-microabrasionado. Os dados obtidos foram analisados com o teste ANOVA (p < 0,05). RESULTADOS: A Técnica de Perfilometria obteve uma boa reprodutibilidade (coeficiente de correlação intraclasse de 0,9998) e foi validada internamente. O grupo AC foi o mais agressivo, apresentando a maior profundidade de desgaste (110,51 ± 41,21 μm), e a maior perda mineral (13 ± 3 peso %), com diferenças significantes em relação aos grupos WRM (p < 0,05; 9,41± 4,4 peso %) e OP (p < 0,05; 9,0 ± 3,8 peso %). O grupo OP, por outro lado, foi o menos agressivo com os menores valores para todos os parâmetros analisados, apresentando uma profundidade de desgaste menor em relação aos grupos AC (p < 0,0001), WRM (p < 0,001; 86,24 ± 27,99 μm) e AF (p < 0,05; 74,46 ± 42,06 μm). Os outros dois grupos apresentaram resultados intermediários para profundidade de desgaste e quantidade de perda mineral. Não houve diferença quanto à profundidade de perda mineral CONCLUSÃO: Com base em uma terminologia própria para a interface esmalte normal-microabrasionado e na aplicação de uma nova Técnica de Perfilometria, os agentes testados mostraram uma significativa diferença quanto à profundidade de desgaste, que foi condizente com a perda mineral. A nova Técnica de Perfilometria propõe o preenchimento de uma lacuna na literatura, permitindo a determinação física de profundidade de desgaste em superfícies naturalmente curvas de tecidos biológicos duros.
6
Franco, Laura Molinar [UNESP]. "Remoção de irregularidades superficiais do esmalte dental após a remoção de braquetes ortodônticos: efeito de polimentos superficiais e tempos de análise." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151818.
Full textAbstract:
Submitted by LAURA MOLINAR FRANCO null (lauramf3@hotmail.com) on 2017-10-02T16:32:03Z
No. of bitstreams: 1
TESE Laura 2017 Biblioteca.pdf: 3853664 bytes, checksum: 3266da5ff489ed61060498df4a53af0f (MD5)Approved for entry into archive by Monique Sasaki (sayumi_sasaki@hotmail.com) on 2017-10-03T16:00:09Z (GMT) No. of bitstreams: 1 franco_lm_dr_araca.pdf: 3853664 bytes, checksum: 3266da5ff489ed61060498df4a53af0f (MD5)
Made available in DSpace on 2017-10-03T16:00:09Z (GMT). No. of bitstreams: 1 franco_lm_dr_araca.pdf: 3853664 bytes, checksum: 3266da5ff489ed61060498df4a53af0f (MD5) Previous issue date: 2017-08-29
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
O objetivo deste ensaio clínico foi avaliar o comportamento de dois sistemas de polimento na regularização da superfície do esmalte dental, que apresentava-se rugosa e irregular após a remoção de braquetes ortodônticos. As variáveis de resposta foram: rugosidade superficial, luminosidade, morfologia, textura e sensibilidade. Fizeram parte dessa pesquisa clínica 30 voluntários. Os fatores em estudo foram: as técnicas de poli- mento superficial em dois níveis: Técnica 1 (discos de óxido de alumínio) e Técnica 2 (produto ácido-abrasivo), e o tempo de análise em 5 níveis: T0 (baseline), T1 (imedia- tamente após os polimentos superficiais), T2 (após polimento final), T3 (7 dias após os procedimentos) e T4 (6 meses após os procedimentos). Os dados representados por escores foram analisados considerando distribuição multinomial; os dados numéricos foram analisados como medidas repetidas no tempo, a um nível de significância de 5%. Nas análises de rugosidade superficial e luminosidade, não houve diferença estatística entre as técnicas em todos os tempos analisados. Nas análises por score, dentro de cada tempo, verificou-se igualdade significativa apenas no baseline; nos demais tempos foram observadas irregularidades superficiais estatisticamente superiores para a Técnica 1. Nenhum paciente apresentou sensibilidade dental. Ambas as técnicas foram eficientes; porém a maior lisura foi adquirida quando a Técnica 2 foi utilizada.
This clinical study evaluated the behavior of two surface polishing systems in the regularization of the enamel surface, which was rough and irregular after orthodontic brackets debonding. The response variables were: surface roughness, lightness, morphology, texture and sensitivity. Thirty volunteers were part of this clinical research. The factors under study were: Surface polishing at two levels: Technique 1 (aluminum oxide disks) and Technique 2 (enamel microabrasive product); and the Time of analysis at 5 levels: T0 (after surface polishing), T1 (immediately after surface polishing), T2 (after final polishing), T3 (7 days after surface polishing) and T4 (6 months after surface polishing). The data represented by scores were analyzed considering multinomial distribution; the numerical ones were analyzed as measures repeated in time, at a significance level of 5%. In the analysis of surface roughness and lightness, there was no statistical difference between the polishing techniques at all times analyzed. In the other analyzes, within each time, significant equality was observed only in the baseline, while in the other times superficial irregularities were statistically superior for Technique 1. No patient presented dental sensitivity. Both techniques were efficient; however, the higher surface smoothness was observed on the dental enamel surface polished with the Technique 2.
7
Morozo, Mário Augusto. "Influência da condição superficial na resistência ao desgaste microabrasivo do aço AISI H13." Universidade do Estado de Santa Catarina, 2013. http://tede.udesc.br/handle/handle/1648.
Full textAbstract:
Made available in DSpace on 2016-12-08T17:19:21Z (GMT). No. of bitstreams: 1
Mario Augusto Morozo.pdf: 3275631 bytes, checksum: 146bb363d630204d1f0a795658dce502 (MD5)
Previous issue date: 2013-08-30Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
In this work, solid boriding thermochemical treatment was carried out using Ekabor® 1-V2 and heat treatment for hardening and tempering hot work tool steel AISI H13 in order to compare and evaluate the tribological behavior and properties acquired for four conditions studied, namely: boriding with Ekabor used powder ® 1-V2, boriding with Ekabor new powder ® 1-V2, quenched and tempered, and as supplied (annealed). Fixed-ball Microabrasive wear tests were performed to evaluate the steady-state wear, wear coefficient, wear volume and friction coefficient. After wear tests, the samples were transversally cut for metallographic evaluations by optical microscopy and microhardness. The wear mechanisms were analyzed by scanning electron microscopy. X-ray diffraction was used to confirm the formation of a borided layer. The results showed that the layer formed after the boriding with Ekabor ® 1-V2 used powder had become quite uneven, which may directly influence in reducing the wear resistance. The same irregularity was detected after boriding with Ekabor® 1-V2 new powder. However, for this second condition, in all áreas, thicker layer was noted. The quenched and tempered condition had the highest average wear coefficient, followed by the annealed condition and boride powder Ekabor ® 1-V2 used, whose coefficients were virtually identical. The boride with Ekabor new powder ® 1-V2 had the lowest average wear coefficient.
Neste trabalho foi realizado tratamento termoquímico de boretação por via sólida com pó comercial Ekabor® 1-V2 e tratamento térmico de têmpera e revenimento em aço ferramenta para trabalho a quente AISI H13 com o intuito de comparar e avaliar o comportamento tribológico e as propriedades adquiridas para quatro condições estudadas, sendo elas: boretação com pó Ekabor® 1-V2 usado, boretação com pó Ekabor® 1-V2 novo, condição temperada e revenida e condição como fornecida (recozida). Ensaios de desgaste microabrasivo foram realizados em equipamento de microabrasão do tipo esfera fixa para avaliação da obtenção do regime permanente de desgaste, coeficiente de desgaste, volume de desgaste e coeficiente de atrito. Após os ensaios de desgaste as amostras foram cortadas transversalmente para avaliação metalográfica através de microscopia óptica e microdureza. Os mecanismos de desgaste foram analisados por microscopia eletrônica de varredura. Difratometria de raios-X foi utilizada para a comprovação da formação da camada de boretos. Os resultados mostraram que a camada formada após a boretação com pó Ekabor® 1-V2 usado apresentou-se bastante irregular, o que pode ter influenciado diretamente na redução da resistência ao desgaste. A mesma irregularidade foi verificada após a boretação com pó Ekabor® 1-V2 novo. Entretanto, para esta segunda condição, em todas as regiões se observou uma espessura de camada maior. A condição temperada e revenida apresentou o maior coeficiente de desgaste médio, sendo seguida pelas condições recozida e boretada com pó Ekabor® 1-V2 usado, cujos coeficientes foram praticamente idênticos. A condição boretada com pó Ekabor® 1-V2 novo apresentou o menor coeficiente de desgaste médio.
8
Pini, Núbia Inocencya Pavesi 1987. "In vitro and in situ evaluation of microabrasion technique on enamel microhardness and morphology = Avaliação in vitro e in situ da técnica de microabrasão sobre a microdureza e morfologia do esmalte dental." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/290365.
Full textAbstract:
Orientadores: José Roberto Lovadino, Débora Alves Nunes Leite LimaTexto em português e inglês
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba
Made available in DSpace on 2018-08-22T14:53:35Z (GMT). No. of bitstreams: 1 Pini_NubiaInocencyaPavesi_M.pdf: 2670984 bytes, checksum: b4ce5e2b5f02ccd6636853ceb3a2b8fc (MD5) Previous issue date: 2013
Resumo: Objetivo: Avaliar, in vitro, a influência dos ácidos utilizados para microabrasão e, in situ, o efeito do tempo de contato com a saliva na microdureza e morfologia do esmalte abrasionado. Metodologia: In vitro: Setenta blocos dentais bovinos foram divididos em 7 grupos (n=10). Os grupos experimentais foram tratados com aplicação ativa/passiva dos ácidos H3PO4 35% (E1/E2) ou HCl 6,6% (E3/E4); e controles, tratados com microabrasão com H3PO4+pedra-pomes (C5), HCl+silica (C6) ou nenhum tratamento (C7). In situ: Nove grupos (n=19) de blocos dentais bovinos foram divididos de acordo com o tratamento e o tempo de exposição salivar, sendo 4 grupos tratados com H3PO4+pedra-pomes, 4 com HCl+sílica e 1 grupo controle. Os grupos tratados foram subdivididos em: sem exposição salivar, 1 hora, 24 horas ou 7 dias de exposição em ambiente intrabucal. A microdureza superficial (SMH) foi avaliada antes e após a microabrasão, e após exposição salivar (in situ). A microdureza subsuperficial (CSMH - 10, 25, 50 e 75 ?m) foi analisada após a microabrasão (in vitro) e após a exposição salivar (in situ). Espécimes representativos foram selecionados para a avaliação da morfologia do esmalte por meio da microscopia confocal de varredura a laser (MCVL - in vitro) e por microscopia eletrônica de varredura (MEV - in situ). Para a análise estatística foi realizada análise de variância para medidas repetidas (Proc Mixed), e os testes de Tukey-Kramer e Dunnet (SMH) e ANOVA (parcelas subdivididas) e Tukey-Kramer (CSMH - in situ) (p<0.05). Resultados: In vitro: Não foram encontradas diferenças entre as análises pré e pós-microabrasão entre os grupos controles para SMH. Entre os grupos experimentais, a aplicação ativa demonstrou os maiores valores de SMH, sem diferença entre os ácidos, com a mesma forma de aplicação. A maioria dos grupos apresentou redução do valor de CSMH conforme aumento da profundidade, com diferenças entre os grupos com microabrasão (C5 e C6) e o C7; e entre todos os grupos experimentais e o C7. Comparando a aplicação dos ácidos, a aplicação ativa do H3PO4 (E1) mostrou maior CSMH com diferença estatística em relação ao HCl (E3). A MCVL demonstrou diferentes padrões de condicionamento para cada grupo. In situ: Para as análises de SMH, todos os grupos tratados apresentaram redução na microdureza, com diferenças em relação ao controle e a leitura inicial. Após exposição salivar, os resultados demonstraram que o tratamento com HCl+sílica foi mais propenso à remineralização, já que, com 1 hora foi verificado aumento na SMH, com diferença significante em relação à análise pós-microabrasão. Apenas o tratamento com HCl+sílica foi eficiente em reestabelecer tal propriedade em relação ao controle. A análise de CSMH confirmou a maior capacidade de remineralização do esmalte tratado com HCl+sílica, uma vez que após 7 dias de exposição salivar, os valores de microdureza foram restabelecidos para as camadas mais superficiais do esmalte (10 e 25 ?m). A MEV demonstrou o efeito remineralizador da saliva para ambos os tratamentos. Conclusões: Os ácidos utilizados para microabrasão apresentaram alto poder erosivo quando aplicados individualmente. O tratamento com HCl+sílica resultou em uma superfície de esmalte mais propensa à remineralização
Abstract: Objective: To evaluate, in vitro, the effect of acids used in microabrasion on enamel microhardness, and, in situ, the effects of remineralizing time on enamel surface after microabrasion. Methods: In vitro: Seven groups (n=10) of enamel blocks from bovine incisors were divided in: Experimental groups treated by active/passive application of 35% H3PO4 (E1/E2) or 6.6% HCl (E3/E4); and control groups treated by microabrasion with H3PO4+pumice (C5), HCl+silica (C6), or no treatment (C7). In situ: Nine groups (n=19) of same specimens were divided in according to microabrasion and salivary exposition being 1 control (no treatment) and 4 groups with microabrasion using 35% H3PO4+pumice and 4 groups using 6.6% +silica. One group of each treatment was submitted to 4 frames of salivary exposition, being without exposition and with 1 hour, 24 hours or 7 days of presence on in situ regimen. Surface microhardness (SMH) was evaluated before and after microabrasion, and after salivary exposition (in situ). Cross-sectional microhardness (CSMH) was analyzed after microabrasion (in vitro) and after salivary exposition (in situ). For confocal laser scanning microscopy (CLSM - in vitro) and scanning electron microscopy (SEM - in situ), representative specimens group were selected. Statistical analysis used Proc Mixed, Tukey-Kramer and Dunnet tests (SMH) e ANOVA (subdivided parcels) and Tukey-Kramer tests (CSMH - in situ) (p<0.05). Results: In vitro: For SMH, it was not found statistically differences between the control groups after treatment. Active application resulted in significantly higher microhardness results than passive application, with no difference between acids. For most groups, the CSMH decreased as the depth increased, with differences between the groups treated with microabrasion (C5 and C6) and C7; and between all of experimental groups and C7. A significantly higher mean CSMH result was obtained with active application of H3PO4 compared to HCl. CLSM revealed the conditioning pattern for each group. In situ: For SMH, the groups treated with microabrasion presented reducing in mineral content, with statistical difference in relation to the control and to the initial analysis. The treatment HCl+silica presented lower reduction and were statistically different from the treatment with H3PO4+pumice. After salivary exposition SMH results revealed that surface treated with HCl+silica was more prone to remineralizing effect of saliva, once it was verified since with 1 hour of presence in in situ regimen, with significant differences between the treatments after 7 days of salivary exposition. Just for SMH, the HCl+silica reached values obtained in control group. CSMH analysis showed that 7 days of salivary exposition were efficient in reestablish de values for the outer layers (10 e 25 ?m) of enamel treated with HCl+silica. SEM analysis presented the remineralizing effect in the course of the time. Conclusions: Acids used for enamel microabrasion presented a higher erosive action when solely applicated. Data suggested that enamel surface treated with HCl+silica presented more susceptibility for remineralizing action of saliva than that treated with phosphoric acid and pumice
Mestrado
Dentística
Mestra em Clínica Odontológica
9
Gava, Gabriel Haddad Souza. "Micropenetração instrumentada em compósitos de matriz metálica à base de tungstênio empregados em coroas de perfuração utilizadas em sondagem mineral." Universidade Federal do Espírito Santo, 2010. http://repositorio.ufes.br/handle/10/6253.
Full textAbstract:
Made available in DSpace on 2016-12-23T14:08:14Z (GMT). No. of bitstreams: 1
Capa, Cap 1 e Cap 2 ate secao 2-2-1-9.pdf: 1005078 bytes, checksum: 68579a03ea37b6d408ea44008ec9ad0f (MD5)
Previous issue date: 2010-12-20Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Este trabalho tem o objetivo de avaliar uma possível relação entre as propriedades mecânicas calculadas a partir dos dados de micropenetração instrumentada e o comportamento sob desgaste microabrasivo dos compósitos à base de tungstênio (W) infiltrados por latão, usados em coroas diamantadas utilizadas em sondagem mineral. As amostras dos compósitos de tungstênio foram sinterizadas com combinações de diferentes tamanhos de partículas W e adições de ligas à base de outros elementos, além de adições de abrasivos secundários (SiC). Após a preparação metalográfica, as amostras foram analisadas em um micropenetrador instrumentado com um pen etrador do tipo Vickers. As fases foram penetradas com uma carga de 30 mN, exceto o carbeto de silício, com carga de 250 mN. As curvas geradas a cada penetração permitiram calcular a microdureza e o módulo de elasticidade para cada fase. Estes resultados foram comparados com os coeficientes de desgaste microabrasivo dimensionais obtidos em um trabalho anterior, através de ensaios de microabrasão com lamas abrasivas à base de carbeto de silício, sílica e hematita, efetuados com equipamento do tipo Calowear. Foi observada uma diminuição na microdureza conforme o tamanho dos grãos de tungstênio aumenta. Para a lama abrasiva contendo SiC, uma diminuição no coeficiente de desgaste microabrasivo se seguiu à diminuição na microdureza do tungstênio. O oposto foi observado com a lama de SiO2, enquanto, para a lama de Fe2O3, nenhuma correlação clara foi obtida. Também é importante dizer que o efeito da dureza do latão infiltrado (fase aglutinante) tornou-se mais significativa nos ensaios com as pastas de SiO2 e de Fe2O3. Quando as ligas à base de outros elementos são adicionadas, para o abrasivo SiC, o aumento da plasticidade do latão aumenta o desgaste, porque as deformações plásticas são aumentadas, levando em consideração a relação Habr./Hfase muito alta. A plasticidade da fase W parece não interferir no desgaste. Ocorre o contrário para o abrasivo SiO2. Para ambos os abrasivos, o cobre adicionado aumenta a fração volumétrica de fase macia , proporcionando um desgaste ainda maior. Para o abrasivo Fe2O3, o aumento na plasticidade do latão aumenta o coeficiente de desgaste, pois leva a indentações maiores, ou seja, a maiores deformações plásticas. Dependendo do tipo do abrasivo, os mecanismos observados foram riscamento e rolamento de partículas (múltiplas indentações), além da ocorrência de ambos simultaneamente, embora dissociados
This work intends to evaluate a possible relationship between the mechanical properties calculated from instrumented microindentation data and the microabrasive wear behavior of infiltrated tungsten (W) composites used in impregnated diamond bits for rock drilling. Specimens of brass-infiltrated W composites were sintered with combinations of different W particle sizes, and additions of alloys based on other elements, as well as additions of secondary abrasives. After metallographic preparation, the specimens were analyzed in an instrumented microindenter with a Vickers indenter. All phases were indented with a load of 30 mN, except the silicon carbide, with a load of 250 mN. The indentation curves allowed the calculation of microhardness and Young s modulus for each phase. Those results were compared with dimensional microabrasive wear coefficients obtained in a previous work, by testing microabrasion with abrasive slurries based on silicon carbide, silica and hematite, performed with Calower equipment. It was observed a decrease in microhardness as the tungsten grains size increase. For the SiC abrasive slurry, a decrease in microabrasive wear coefficient followed the decrease in tungsten microhardness. The opposite was observed with the SiO2 slurry, whereas, for the Fe2O3 slurry, no clear correlation was obtained. It is also important to say that the effect of infiltrated brass (binder phase) hardness became more significant in the tests with the SiO2 and Fe2O3 slurries. When the alloys based on other elements are added, to the SiC abrasive, the increase of the brass plasticity increases its wear, because the plastic deformations are increased, taking into account the very high Habr./Hphase relation. The plasticity of the W phase seems not to interfere in wear. The opposite is true for the SiO2 abrasive. For both abrasives, the copper added increases the "soft" phase volumetrical fraction, providing an additional wear. For the Fe2O3 abrasive, the increase in the brass plasticity increases the wear coefficient, since it leads to larger indentations, i. e., to larger plastic deformations. Depending on the abrasive type, the observed mechanisms were grooving and particles rolling (multiple indentations), besides the occurrence of both simultaneously, although, dissociated
10
Parsons, Tetyana. "In vitro comparison of microabrasion, CPP-ACP, CPP-ACFP and combination therapies on the remineralization of white spot lesions." Thesis, NSUWorks, 2014. https://nsuworks.nova.edu/hpd_cdm_stuetd/15.
Full textAbstract:
Objectives: To determine whether treatment of demineralized enamel white spot lesions with CPP-ACP paste, CPP-ACFP paste or microabrasion technique decreases lesion depth in vitro. Additionally, to determine whether treatment of demineralized enamel white spot lesions with microabrasion technique in combination with CPP-ACP paste or CPP-ACFP paste decreases lesion depth greater than any of the three techniques alone. Background: White spot lesions (WSLs) after the removal of orthodontic appliances remain a problem for clinicians and patients. Previous studies suggest that application of casein phosphopeptide amorphous calcium phosphate (CPP-ACP) and casein phosphopeptide amorphous calcium fluoride phosphate (CPP-ACFP) may promote enamel remineralization. Recently, microabrasion of enamel was proposed as another treatment modality of white spot lesions. A review of literature showed that there was no comprehensive in vitro study that combined microabrasion, casein phosphopeptide amorphous calcium phosphate and casein phosphopeptide amorphous calcium fluoride phosphate for treatment of WSLs. Methods: A total of one hundred and twelve bovine incisor teeth were randomly assigned to seven treatment groups: 1. Control 1 (demineralization control), 2. Control 2 (remineralization solution control), 3. CPP-ACP paste, 4. CPP-ACFP paste, 5. Microabrasion, 6. Microabrasion with CPP- ACP paste, and 7. Microabrasion with CPP-ACFP paste.
Teeth in all groups were placed in demineralizing solution for 96 hours to produce artificial caries-like lesions. At the end of the 96 hr period, teeth in Control 1 group were sectioned to establish adequate amount of demineralization. The rest of samples were treated with assigned regimen once a day for 10 days and stored in remineralization solution. At the end of ten days, teeth were sectioned with a hard tissue microtome and observed under polarized microscopy to analyze enamel lesion depth. One-way ANOVA at α=0.05 was performed to assess difference in lesion depth between groups followed with post hoc Tukey's test. Results: Statistical analysis showed a significant difference between groups (pConclusions: Based on the results from this study, we can conclude that: (1) treatment of WSLs with CPP-ACP paste, CPP-ACFP paste or microabrasion decreases lesion depth in vitro; (2) microabrasion in combination with CPP-ACP paste or CPP-ACFP paste did not decrease lesion depth greater than that observed with either paste technique alone; (3) both CPP-ACP and CPP-ACFP pastes in combination with microabrasion treatments showed greater decrease in lesion depth than microabrasion alone.
Books on the topic "Microabrasion"
2
Valk, Pim. Enamel damage resulting from fixed orthodontic appliances. [Netherlands: s.n.], 1987.
Find full text
3
Hernandez Jimenez, Luis Gustavo. Determinación mediante microabrasión del espesor y tasa de desgaste de recubrimientos delgados depositados sobre materiales metálicos. Editorial Científica 3Ciencias, 2019. http://dx.doi.org/10.17993/ingytec.2019.54.
Full text
4
Wood, Martyn, and Marilyn Bradley. Syphilis. Edited by Patrick Davey and David Sprigings. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199568741.003.0313.
Full textAbstract:
The term ‘syphilis’ describes the wide-ranging clinical manifestations of infection with the slowly dividing spirochete bacterium Treponema pallidum subsp. pallidum. T. pallidum infection is mainly sexually acquired; it is thought the bacterium enters through microabrasions in the skin or mucosa. Congenital infection via mother-to-child transmission is also recognized. The driving force of the clinical manifestations of all stages of syphilis is an underlying and often multisystem vasculitis. Acquired syphilis can be divided into early and late presentations. In early stage infection, the T. pallidum infection has been acquired within 2 years of the diagnosis. This early stage includes the symptomatic primary and secondary stages of infection, and the asymptomatic early latent stage. Late infection of over 2 years’ standing includes all the manifestations of tertiary syphilis and asymptomatic late latent infection. This chapter discusses syphilis, including its demographics, etiology, natural history, complications, diagnosis, prognosis, and treatment.
Book chapters on the topic "Microabrasion"
1
Perdigão, Jorge, Jennifer M. Homer#, and Carmen Real. "At-Home Tray Whitening and Enamel Microabrasion." In Tooth Whitening, 233–38. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-38849-6_12.
Full text
2
Donly, Kevin J., and Theodore P. Croll. "Enamel Microabrasion for Removal of Superficial Coloration and Surface Texture Defects." In Tooth Whitening, 201–9. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-38849-6_9.
Full text
3
de Roos, Joanne, and Hans van Pelt. "Microabrasie." In TP topics 2013-2014, 41–45. Houten: Bohn Stafleu van Loghum, 2014. http://dx.doi.org/10.1007/978-90-368-0820-0_6.
Full text
4
Martín, Castillo-Sánchez, Velázquez-Vázquez María, Vite-Torres Manuel, and Gallardo-Hernández Ezequiel. "Microabrasive Wear of Titanium Chrome Plated." In Proceedings of the 7th International Conference on Fracture Fatigue and Wear, 602–14. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0411-8_54.
Full text
5
Panin, Sergey V., Lyudmila A. Kornienko, Nguyen Duc Anh, Vladislav O. Alexenko, Dmitry G. Buslovich, and Svetlana A. Bochkareva. "Three-Component Wear-Resistant PEEK-Based Composites Filled with PTFE and MoS2: Composition Optimization, Structure Homogenization, and Self-lubricating Effect." In Springer Tracts in Mechanical Engineering, 275–99. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-60124-9_13.
Full textAbstract:
AbstractThe aim of this work was to design and optimize compositions of three-component composites based on polyetheretherketone (PEEK) with enhanced tribological and mechanical properties. Initially, two-component PEEK-based composites loaded with molybdenum disulfide (MoS2) and polytetrafluoroethylene (PTFE) were investigated. It was shown that an increase in dry friction mode tribological characteristics in metal-polymer and ceramic-polymer tribological contacts was attained by loading with lubricant fluoroplastic particles. In addition, molybdenum disulfide homogenized permolecular structure and improved matrix strength properties. After that, a methodology for identifying composition of multicomponent PEEK-based composites having prescribed properties which based on a limited amount of experimental data was proposed and implemented. It was shown that wear rate of the “PEEK + 10% PTFE + 0.5% MoS2” composite decreased by 39 times when tested on the metal counterpart, and 15 times on the ceramic one compared with neat PEEK. However, in absolute terms, wear rate of the three-component composite on the metal counterpart was 1.5 times higher than on the ceramic one. A three-fold increase in wear resistance during friction on both the metal and ceramic counterparts was achieved for the “PEEK + 10% PTFE + 0.5% MoS2” three-component composite compared with the “PEEK + 10% PTFE”. Simultaneous loading with two types of fillers slightly deteriorated the polymer composite structure compared with neat PEEK. However, wear rate was many times reduced due to facilitation of transfer film formation. For this reason, there was no microabrasive wear on both metal and ceramic counterpart surfaces.
6
"Bleaching and the microabrasion technique." In Bleaching Techniques in Restorative Dentistry, 203–14. CRC Press, 2001. http://dx.doi.org/10.3109/9780203417430-15.
Full text
7
Greenwall, Linda. "Tooth Whitening, the Microabrasion Technique, and White Spot Eradication." In Tooth Whitening Techniques, 173–86. CRC Press, 2017. http://dx.doi.org/10.1201/9781315365503-10.
Full text
8
Kohli, Rajiv. "Microabrasive Precision Cleaning and Processing Technology." In Developments in Surface Contamination and Cleaning, 919–49. Elsevier, 2008. http://dx.doi.org/10.1016/b978-081551555-5.50020-4.
Full text
9
Kohli, Rajiv. "Microabrasive Technology for Precision Cleaning and Processing." In Developments in Surface Contamination and Cleaning, 627–66. Elsevier, 2016. http://dx.doi.org/10.1016/b978-0-323-29960-2.00014-9.
Full text
10
Kohli, Rajiv. "Microabrasive Technology for Precision Cleaning and Processing Applications." In Developments in Surface Contamination and Cleaning: Applications of Cleaning Techniques, 509–48. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-815577-6.00013-x.
Full textConference papers on the topic "Microabrasion"
1
Wang, Hao, Evgeny Gurevich, and Andreas Ostendorf. "Microhardness and microabrasion behaviour of NiTi shape memory alloy after femtosecond laser shock peening without coating in air." In High-Power Laser Materials Processing: Applications, Diagnostics, and Systems IX, edited by Stefan Kaierle and Stefan W. Heinemann. SPIE, 2020. http://dx.doi.org/10.1117/12.2543550.
Full text
2
Esteves, Pamella, Marcelo de Macêdo, Roberto Souza, and Cherlio Scandian. "Influência da Velocidade do Contra Corpo no Ensaio de Microabrasão." In X Congresso Nacional de Engenharia Mecânica. ABCM, 2018. http://dx.doi.org/10.26678/abcm.conem2018.con18-0948.
Full text
3
Lucas Tomazi Durand, Marcio Mafra, Júlio César Klein das Neves, and Euclides Alexandre Bernardelli. "Efeito da Rugosidade no Desgaste Microabrasivo do aço AISI H13 nitretado por plasma." In XX Seminário de Iniciação Científica e Tecnológica da UTFPR. Curitiba, PR, Brasil: Universidade Tecnológica Federal do Paraná - UTFPR, 2015. http://dx.doi.org/10.20906/cps/sicite2015-0425.
Full text
4
Marques, Flávio Parreiras, Antônio César Bozzi, Cherlio Scandian, and André Paulo Tschiptschin. "ANÁLISE DO COMPORTAMENTO TRIBOLÓGICO EM ENSAIOS DE MICROABRASÃO DE UMA SUPERLIGA DE COBALTO." In 70º Congresso Anual da ABM. São Paulo: Editora Blucher, 2018. http://dx.doi.org/10.5151/1516-392x-26882.
Full text
5
Conci, Maycoln Depianti, and Adonias Ribeiro Franco Junior. "AVALIAÇÃO DA RESISTÊNCIA AO DESGASTE MICROABRASIVO DO AÇO FERRAMENTA AISI D2 NITRETADO A PLASMA." In 10º Encontro da Cadeia de Ferramentas, Moldes e Matrizes. São Paulo: Editora Blucher, 2012. http://dx.doi.org/10.5151/5463-5436-21368.
Full text
6
Krelling, Anael, Murillo Santana, Julio Milan, Cesar Edil da Costa, Elisangela Aparecida dos Santos de Almeida, and Alexandre Galiotto. "Resistência ao desgaste microabrasivo do aço AISI 52100 submetido a tratamento de deposição termo-reativa." In Congresso Brasileiro de Engenharia de Fabricação. ABCM, 2017. http://dx.doi.org/10.26678/abcm.cobef2017.cof2017-0132.
Full text
7
Sandra Pires, Soraia, Ernane Rodrigues da Silva, Paulo Sérgio, Poliana Souza, Victor Souza Esteves Lima, and Rogerio Nunes. "Análise da resistência ao desgaste microabrasivo do filme Diamond-like Carbon em substratos de aço AISI M2." In X Congresso Nacional de Engenharia Mecânica. ABCM, 2018. http://dx.doi.org/10.26678/abcm.conem2018.con18-0409.
Full text
8
Silva, João Paulo Calixto da, Cherlio Scandian, and Adonias Ribeiro Franco Júnior. "MAPAS DE DESGASTE MICROABRASIVO DO AÇO INOXIDÁVEL AUSTENÍTICO AISI 316L: UMA ANÁLISE COMPARATIVA DE SUPERFÍCIES NÃO NITRETADAS E NITRETADAS A PLASMA." In 69° Congresso Anual da ABM - Internacional. São Paulo: Editora Blucher, 2014. http://dx.doi.org/10.5151/1516-392x-24219.
Full text