Journal articles: 'Air abrasion'

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Hays, D. Alan. "AIR-ABRASION TREATMENT." Journal of the American Dental Association 132, no. 11 (November 2001): 1502–3. http://dx.doi.org/10.14219/jada.archive.2001.0072.

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Tan, Melissa H. X., Robert G. Hill, and Paul Anderson. "Comparing the Air Abrasion Cutting Efficacy of Dentine Using a Fluoride-Containing Bioactive Glass versus an Alumina Abrasive: AnIn VitroStudy." International Journal of Dentistry 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/521901.

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Air abrasion as a caries removal technique is less aggressive than conventional techniques and is compatible for use with adhesive restorative materials. Alumina, while being currently the most common abrasive used for cutting, has controversial health and safety issues and no remineralisation properties. The alternative, a bioactive glass, 45S5, has the advantage of promoting hard tissue remineralisation. However, 45S5 is slow as a cutting abrasive and lacks fluoride in its formulation. The aim of this study was to compare the cutting efficacy of dentine using a customised fluoride-containing bioactive glass Na0SR (38–80 μm) versus the conventional alumina abrasive (29 μm) in an air abrasion set-up. Fluoride was incorporated into Na0SR to enhance its remineralisation properties while strontium was included to increase its radiopacity. Powder outflow rate was recorded prior to the cutting tests. Principal air abrasion cutting tests were carried out on pristine ivory dentine. The abrasion depths were quantified and compared using X-ray microtomography. Na0SR was found to create deeper cavities than alumina (p<0.05) despite its lower powder outflow rate and predictably reduced hardness. The sharper edges of the Na0SR glass particles might improve the cutting efficiency. In conclusion, Na0SR was more efficacious than alumina for air abrasion cutting of dentine.

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Milly, H., RS Austin, I. Thompson, and A. Banerjee. "In Vitro Effect of Air-abrasion Operating Parameters on Dynamic Cutting Characteristics of Alumina and Bio-active Glass Powders." Operative Dentistry 39, no. 1 (January 1, 2014): 81–89. http://dx.doi.org/10.2341/12-466-l.

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SUMMARY Minimally invasive dentistry advocates the maintenance of all repairable tooth structures during operative caries management in combination with remineralization strategies. This study evaluated the effect of air-abrasion operating parameters on its cutting efficiency/pattern using bio-active glass (BAG) powder and alumina powder as a control in order to develop its use as a minimally invasive operative technique. The cutting efficiency/pattern assessment on an enamel analogue, Macor, was preceded by studying the powder flow rate (PFR) of two different commercial intraoral air-abrasion units with differing powder-air admix systems. The parameters tested included air pressure, powder flow rate, nozzle-substrate distance, nozzle angle, shrouding the air stream with a curtain of water, and the chemistry of abrasive powder. The abraded troughs were scanned and analyzed using confocal white light profilometry and MountainsMap surface analysis software. Data were analyzed statistically using one-way and repeated-measures analysis of variance tests (p=0.05). The air-abrasion unit using a vibration mechanism to admix the abrasive powder with the air stream exhibited a constant PFR regardless of the set air pressure. Significant differences in cutting efficiency were observed according to the tested parameters (p<0.05). Alumina powder removed significantly more material than did BAG powder. Using low air pressure and suitable consideration of the effect of air-abrasion parameters on cutting efficiency/patterns can improve the ultraconservative cutting characteristics of BAG air-abrasion, thereby allowing an introduction of this technology for the controlled cleaning/removal of enamel, where it is indicated clinically.

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Mandinic, Zoran, Zoran Vulicevic, Milos Beloica, Ivana Radovic, Jelena Mandic, Momir Carevic, and Jasmina Tekic. "The application of air abrasion in dentistry." Srpski arhiv za celokupno lekarstvo 142, no. 1-2 (2014): 99–105. http://dx.doi.org/10.2298/sarh1402099m.

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One of the main objectives of contemporary dentistry is to preserve healthy tooth structure by applying techniques of noninvasive treatment. Air abrasion is a minimally invasive nonmechanical technique of tooth preparation that uses kinetic energy to remove carious tooth structure. A powerful narrow stream of moving aluminum-oxide particles hit the tooth surface and they abrade it without heat, vibration or noise. Variables that affect speed of cutting include air pressure, particle size, powder flow, tip?s size, angle and distance from the tooth. It has been proposed that air abrasion can be used to diagnose early occlusal-surface lesions and treat them with minimal tooth preparation using magnifier. Reported advantages of air abrasion include reduced noise, vibration and sensitivity. Air abrasion cavity preparations have more rounded internal contours than those prepared with straight burs. This may increase the longevity of placed restorations because it reduces the incidence of fractures and a consequence of decreased internal stresses. However, air abrasion cannot be used for all patients, i.e. in cases involving severe dust allergy, asthma, chronic obstructive lung disease, recent extraction or other oral surgery, open wounds, advanced periodontal disease, recent placement of orthodontic appliances and oral abrasions, or subgingival caries removal. Many of these conditions increase the risk of air embolism in the oral soft tissues. Dust control is a challenge, and it necessitates the use of rubber dam, high-volume evacuation, protective masks and safety eyewear for both the patient and the therapist.

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Rainey, J. Tim. "MICRO-AIR-ABRASION DENTISTRY." Journal of the American Dental Association 131, no. 12 (December 2000): 1672–73. http://dx.doi.org/10.14219/jada.archive.2000.0104.

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Snaer, William R. "MORE ON AIR ABRASION." Journal of the American Dental Association 132, no. 11 (November 2001): 1503–4. http://dx.doi.org/10.14219/jada.archive.2001.0074.

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Hoopingarner, C. R., and Donald Coluzzi. "LASERS AND AIR ABRASION." Journal of the American Dental Association 141, no. 7 (July 2010): 831. http://dx.doi.org/10.14219/jada.archive.2010.0272.

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Forcella, Frank. "Soybean Seedlings Tolerate Abrasion from Air-Propelled Grit." Weed Technology 27, no. 3 (September 2013): 631–35. http://dx.doi.org/10.1614/wt-d-12-00192.1.

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New tools for controlling weeds would be useful for soybean production in organic systems. Air-propelled abrasive grit is one such tool that performs well for in-row weed control in corn, but crop safety in soybean is unknown. Responses to abrasion by corn-cob grit of soybean seedlings were examined at VE, VC, VU, V1, V2 (emergence, cotyledon, unifoliate, first trifoliate, and second trifoliate, respectively) and combinations of these growth stages, in both greenhouse and field settings. Seedling leaf areas and dry weights in greenhouse experiments were reduced by treatments that included abrasion at VC, with the primary effect expressed through reductions in the size of the unifoliate leaf. In the field, soybean stand also was reduced by grit applications at VC, especially if followed by a second application at VU or V1. However, soybean yield was not reduced by grit applied at any soybean stage of growth. End-of-season weed dry weights did not differ from hand-weeded checks, and weeds did not impact soybean yields. Thus, abrasive grit for in-row weed control can be applied at least twice at VE through V2 growth stages without lowering soybean yield, but applications at VC probably should be avoided.

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Hamilton, James C., and Joseph B. Dennison. "AIR-ABRASION TREATMENT: Authors' response." Journal of the American Dental Association 132, no. 11 (November 2001): 1503. http://dx.doi.org/10.14219/jada.archive.2001.0073.

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Forcella, Frank. "Air-Propelled Abrasive Grit for Postemergence In-Row Weed Control in Field Corn." Weed Technology 26, no. 1 (March 2012): 161–64. http://dx.doi.org/10.1614/wt-d-11-00051.1.

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Organic growers need additional tools for weed control. A new technique using abrasive grit propelled by compressed air was tested in field plots. Grit derived from corncobs was directed at seedlings of summer annual weeds growing at the bases of corn plants when the corn was at differing early stages of leaf development. Season-long, in-row weed control exceeded 90% when two or three abrasion events were coupled with between-row cultivation. Timing of weed abrasion was critical, with highest levels of control corresponding to the one- and five-leaf stages or the one-, three-, and five-leaf stages of corn development. Corn yields associated with these treatments were equivalent to those of hand-weeded controls in which no abrasive grit was applied. Thus, air-propelled abrasive grit applications at the one-, three-, and five-leaf stages of corn controlled weeds sufficiently to prevent weed-induced reductions in corn grain. Additionally, these applications were not harmful to corn plants. This new concept for weed control may be of interest to organic crop managers.

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Shakeri, M., Hossein Amirabadi, and Osamu Horiuchi. "Measuring out of Flatness of a Rough Quartz Surface and Correction by Mist-Abrasion Machining." Advanced Materials Research 83-86 (December 2009): 1016–24. http://dx.doi.org/10.4028/www.scientific.net/amr.83-86.1016.

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In this research, Air mist-abrasion machining method for corrective figuring of a rough isotropic quartz surface before polishing process has been proposed. By this method, not only the next polishing time decreases, but also figuring efficiency increases through the possibility of using bigger abrasive grain size. Since the restrictions of laser interferometer measuring devices, capacitor probe has been used for measuring “out of flatness” of a rough isotropic quartz surface and creating error map for corrective figuring. By the proposed Air mist-abrasion figuring method, flatness of a rough isotropic quartz surface improved from PV= 0.4μm to PV=0.1μm without any change in surface roughness value.

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Leite, Fábio Renato Manzolli, Ticiana Sidorenko de Oliveira Capote, and Angela Cristina Cilense Zuanon. "Application of the total etching technique or self-etching primers on primary teeth after air abrasion." Brazilian Oral Research 19, no. 3 (September 2005): 198–202. http://dx.doi.org/10.1590/s1806-83242005000300008.

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Since the use of air abrasion has grown in pediatric dentistry, the aim of this study was to evaluate, by means of shear bond strength testing, the need to use the total etching technique or self-etching primers on dentin of primary teeth after air abrasion. Twenty-five exfoliated primary molars had their occlusal dentin exposed by trimming and polishing. Specimens were treated by: Air abrasion + Scotchbond MultiPurpose adhesive (G1); 37% phosphoric acid + Scotchbond MP adhesive (G2); Clearfil SE (G3); Air abrasion + 37% phosphoric acid + Scotchbond MP adhesive (G4); Air abrasion + Clearfil SE (G5). On the treated surface, a cylinder of 2 mm by 6 mm was made using a composite resin (Z100). Duncan's test showed that: (G2 = G3 = G5) > (G1 = G4). The use of a self-etching primer on air abraded dentin is recommended to obtain higher bond strengths.

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Farooq, Imran, Zonera Imran, and Umer Farooq. "Air Abrasion: Truly Minimally Invasive Technique." International Journal of Prosthodontics and Restorative Dentistry 1, no. 2 (2011): 105–7. http://dx.doi.org/10.5005/jp-journals-10019-1019.

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ABSTRACT Minimally invasive dentistry concept is now an essential part of dental procedures. Many novel materials and techniques have now been developed that are in line with the MI (minimal intervention) philosophy. One such technique is air abrasion. An attempt has been made in this article to cover all the aspects of air abrasion and to remove the misconceptions present about this technique.

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Yi, Y.-A., J.-S. Ahn, Y.-J. Park, S.-H. Jun, I.-B. Lee, B.-H. Cho, H.-H. Son, and D.-G. Seo. "The Effect of Sandblasting and Different Primers on Shear Bond Strength Between Yttria-tetragonal Zirconia Polycrystal Ceramic and a Self-adhesive Resin Cement." Operative Dentistry 40, no. 1 (January 1, 2015): 63–71. http://dx.doi.org/10.2341/13-149-l.

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SUMMARY Purpose To evaluate the effect of zirconia primers, air-abrasion, and tribochemical surface treatment methods on the shear bond strength between yttria-tetragonal zirconia polycrystal (Y-TZP) ceramic and self-adhesive resin cement. Methods and Materials Y-TZP ceramic surfaces were ground flat with 600-grit silicon carbide paper and then divided into seven groups of 10 and treated as follows: untreated (control), Monobond Plus, Z-PRIME Plus, ESPE Sil with CoJet, air-abrasion, Monobond Plus with air-abrasion, and Z-PRIME Plus with air-abrasion. Self-adhesive resin cement was placed onto the treated Y-TZP specimens for each group. All specimens were thermocycled and subjected to a shear bond strength test. Scanning electron microscope images of the fractured areas and x-ray diffraction (XRD) analysis of the surface-treated Y-TZP specimens were performed. Data were statistically analyzed using one-way analysis of variance and the Student-Newman-Keuls multiple comparison test (p<0.05). Results The Z-PRIME Plus treatment in combination with air-abrasion produced the highest bond strength (16.50±2.26 MPa), followed by air-abrasion (10.56±3.32 MPa), and then Monobond Plus combined with air-abrasion (8.93±3.13 MPa), ESPE Sil after CoJet application (8.54±3.98 MPa), and the Z-PRIME Plus group (8.27±2.79 MPa). The control (3.91±0.72 MPa) and Monobond Plus (4.86±1.77 MPa) groups indicated the lowest results (p<0.05). The XRD results showed the peaks of the monoclinic phase for the air-abrasion and CoJet treatment groups compared with the Y-TZP control. Conclusion Z-PRIME Plus primer application after air-abrasion presented the best results for improving the bond strength between Y-TZP ceramic and self-adhesive resin cement.

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van Putten, Jan. "De doorbraak van Air abrasion-technologie." Standby 19, no. 4 (August 2005): 104–5. http://dx.doi.org/10.1007/bf03079379.

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Featherstone, John D. B. "MICRO-AIR-ABRASION DENTISTRY: Author's response." Journal of the American Dental Association 131, no. 12 (December 2000): 1673–74. http://dx.doi.org/10.14219/jada.archive.2000.0105.

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Hamilton, James C., and Joseph B. Dennison. "MORE ON AIR ABRASION: Authors' response." Journal of the American Dental Association 132, no. 11 (November 2001): 1504–5. http://dx.doi.org/10.14219/jada.archive.2001.0075.

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Moslemi, Masoumeh. "LASERS AND AIR ABRASION: Author's response." Journal of the American Dental Association 141, no. 7 (July 2010): 831–32. http://dx.doi.org/10.14219/jada.archive.2010.0273.

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Banerjee, Avijit, and Timothy F. Watson. "Air Abrasion: Its Uses and Abuses." Dental Update 29, no. 7 (September 2, 2002): 340–46. http://dx.doi.org/10.12968/denu.2002.29.7.340.

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. "Air abrasion met één handzaam apparaat." TandartsPraktijk 27, no. 7 (July 2006): 608. http://dx.doi.org/10.1007/bf03072885.

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Tostes, Bhenya Ottoni, Renato Bastos Guimarães, Jaime Dutra Noronha-Filho, Glauco dos Santos Botelho, José Guilherme Antunes Guimarães, and Eduardo Moreira da Silva. "Characterization of Conventional and High-Translucency Y-TZP Dental Ceramics Submitted to Air Abrasion." Brazilian Dental Journal 28, no. 1 (February 2017): 97–104. http://dx.doi.org/10.1590/0103-6440201701035.

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Abstract This study evaluated the effect of air-abrasion on t®m phase transformation, roughness, topography and the elemental composition of three Y-TZP (Yttria-stabilized tetragonal zirconia polycrystal) dental ceramics: two conventional (Lava Frame and IPS ZirCad) and one with high-translucency (Lava Plus). Plates obtained from sintered blocks of each ceramic were divided into four groups: AS (as-sintered); 30 (air-abrasion with 30 mm Si-coated Al2O3 particles); 50 (air-abrasion with 50 mm Al2O3 particles) and 150 (air-abrasion with 150 mm Al2O3 particles). After the treatments, the plates were submitted to X-ray diffractometry; 3-D profilometry and SEM/EDS. The AS surfaces were composed of Zr and t phases. All treatments produced t®m phase transformation in the ceramics. The diameter of air-abrasion particles influenced the roughness (150>50>30>AS) and the topography. SEM analysis showed that the three treatments produced groove-shaped microretentions on the ceramic surfaces, which increased with the diameter of air-abrasion particles. EDS showed a decrease in Zr content along with the emergence of O and Al elements after air-abrasion. Presence of Si was also detected on the plates air-abraded with 30 mm Si-coated Al2O3 particles. It was concluded that irrespective of the type and diameter of the particles, air-abrasion produced t®m phase transformation, increased the roughness and changed the elemental composition of the three Y-TZP dental ceramics. Lava Plus also behaved similarly to the conventional Y-TZP ceramics, indicating that this high translucency ceramic could be more suitable to build monolithic ceramic restorations in the aesthetic restorative dentistry field.

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Awad, Mohamed Moustafa, Nader Almutairi, Feras Alhalabi, Ali Robaian, Fahim Ahmed Vohra, Mutlu Ozcan, Ahmed Maawadh, and Ali Alrahlah. "Influence of Surface Conditioning on the Repair Strength of Bioactive Restorative Material." Journal of Applied Biomaterials & Functional Materials 18 (January 2020): 228080002092661. http://dx.doi.org/10.1177/2280800020926615.

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Objective: To evaluate the effects of surface treatment and repair material on the repair shear bond strength (SBS) of the bioactive restorative material. Methods: A total of 240 Activa BioActive Restorative (Activa) discs were prepared, aged, and polished, and divided randomly into eight groups ( n = 30). Groups 1–4 discs were repaired with bulk-fill flowable resin-based composite (Bulk-RBC), and Groups 5–8 discs with Activa. Surface treatment used for each repair material type were air abrasion with silica-coated 30-m Al2O3 particles (air abrasion) (Groups 2 & 6), Air abrasion with universal primer (Groups 3 & 7), and Air abrasion with universal adhesive (Groups 4 & 8). Groups 1 and 5 were controls without surface treatment. SBS test was performed, and the failure mode and surface topography were assessed. Results: Surface treatment with air abrasion significantly improved the SBS for repair using both Activa and Bulk-RBC. Repair SBS using Activa was significantly higher compared with Bulk-RBC. Cohesive failure in substrate and mixed failures were most common in the surface-treated groups (2–4, 6–8). Air abrasion produced prominent surface topography changes compared with polishing. Conclusion: Air abrasion enhances the repair SBS of aged bioactive restorative material. The use of the same material (Activa) for repair affords a higher bond strength compared with the use bulk-RBC.

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Göltz, Maximilian, Maximilian Koch, Rainer Detsch, Matthias Karl, Andreas Burkovski, and Stefan Rosiwal. "Influence of In-Situ Electrochemical Oxidation on Implant Surface and Colonizing Microorganisms Evaluated by Scanning Electron Microscopy." Materials 12, no. 23 (November 30, 2019): 3977. http://dx.doi.org/10.3390/ma12233977.

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Peri-implantitis is a worldwide increasing health problem, caused by infection of tissue and bone around an implant by biofilm-forming microorganisms. Effects of peri-implantitis treatment using mechanical debridement, air particle abrasion and electrochemical disinfection on implant surface integrity were compared. Dental implants covered with bacterial biofilm were cleaned using mechanical debridement and air particle abrasion. In addition, implants were disinfected using a novel electrochemical technique based on an array of boron-doped diamond (BDD) coated electrodes. Following treatment and preparation, the implants were inspected by scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). Mechanical debridement led to changes in surface topography destroying the manufacturer’s medium-rough surface by scratch formation. Air particle abrasion led to accumulation of the abrasive used on the implant surface. With both treatment options, appearance of bacteria and yeasts was not affected. In contrast, electrochemical disinfection did not cause alterations of the implant surface but resulted in distorted microbial cells. Electrochemical disinfection of implant surfaces using BDD electrodes may constitute a promising treatment option for cleaning dental implant surfaces without negatively affecting materials and surface properties.

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Karntiang, Pirat, Hiroshi Ikeda, Yuki Nagamatsu, and Hiroshi Shimizu. "Influence of Alumina Air-Abrasion on Flexural and Shear Bond Strengths of CAD/CAM Composite." Crystals 10, no. 10 (October 12, 2020): 927. http://dx.doi.org/10.3390/cryst10100927.

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The purpose of this study was to clarify the influence of alumina air-abrasion on flexural and bond strengths of CAD/CAM composites. The flexural strength (FS) of two brands of commercial CAD/CAM composites was investigated by the three-point bending test using two specimen designs: the single-bar according to the ISO standard and the bonded-double-bar fabricated by bonding two bars with a resin cement. The bond strength between the composites and the resin cement was measured by a conventional shear bond strength (SBS) test. The FS of single-bar specimens was significantly decreased by the air-abrasion. For the FS of the bonded-double-bar specimen, on the other hand, there was no significant difference between the specimens with/without air-abrasion. The SBS for the composites was significantly increased by air-abrasion. The results suggest that alumina air-abrasion improves the SBS of the composites while weakening its FS. Contrarily, the FS of the air-abraded composite did not decrease when the composites were bonded with the resin cement.

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Khoroushi, Maryam, Alireza Eshghi, and Alireza Rezvani. "Resin Bonding using Etch-and-Rinse and Self-etch Adhesives to Decalcified Deciduous Enamel after Bioactive Glass Air Abrasion." Journal of Contemporary Dental Practice 15, no. 5 (2014): 595–602. http://dx.doi.org/10.5005/jp-journals-10024-1585.

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ABSTRACT Purpose Bioactive glass air abrasion is a conservative technique for removal of initial decalcified enamel superficial layer and caries vs alumina air abrasion. This study evaluated shear bond strength of composite resin to sound and decalcified deciduous enamel using etch-and-rinse and self-etch adhesives after alumina and bioactive glass air abrasion. Materials and methods Ninety-six flat enamel surfaces, mounted in acrylic resin, were prepared from 48 deciduous molars. Half of the specimens were decalcified with a demineralizing solution. Both intact and decalcified specimens were assigned to two groups for alumina and bioactive glass air abrasion. In each group, the specimens were subdivided into two groups for application of Clearfil SE Bond or Optibond FL adhesives (n = 12). After composite resin bonding, the specimens underwent shear bond test. Data were analyzed using three-way analysis of variance (ANOVA), linear regression model and independentsample t-test (á = 0.05). Results No significant differences were noted in bond strength of composite resin after alumina or bioactive glass air abrasion (p = 0.272). Optibond FL adhesive and enamel decalcification produced higher bond strength (p = 0.000, p = 0.001 respectively). Conclusion In this study, bioactive glass air abrasion produced bond strength comparable to the conventional method. This technique might be an alternative method for preparation of normal and/or decalcified enamel of deciduous teeth for resin bonding. How to cite this article Eshghi A, Khoroushi M, Rezvani A. Resin Bonding using Etch-and-Rinse and Self-etch Adhesives to Decalcified Deciduous Enamel after Bioactive Glass Air Abrasion. J Contemp Dent Pract 2014;15(5):595-602.

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Grasel, R., MJ Santos, HM Chagas Rêgo, MP Rippe, and LF Valandro. "Effect of Resin Luting Systems and Alumina Particle Air Abrasion on Bond Strength to Zirconia." Operative Dentistry 43, no. 3 (May 1, 2018): 282–90. http://dx.doi.org/10.2341/15-352-l.

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SUMMARY This study aimed to evaluate the effect of different primer/resin luting agent combinations and alumina air abrasion on the adhesion to zirconia. Eighty blocks (4×4×3 mm) of Lava Frame Zirconia (3M ESPE) were produced and randomly assigned into eight groups (n=10) according to two zirconia surface treatments (untreated or air abrasion with 50-μm alumina particles) and four luting systems (SU: Scotchbond Universal/RelyX Unicem 2; ZP: Z-Prime Plus/Duo-link Universal; MB: Monobond Plus/Variolink II; and AP: Alloy Primer/ED Primer II/Panavia F 2.0). After the conditioning and primer applications, resin luting agents were manipulated and applied on the zirconia, using a matrix, to form a cylinder (2 mm in diameter×2 mm high), followed by photoactivation for 40 seconds. After that, the specimens were stored in distilled water (37 °C) for 120 days and then submitted to shear bond strength testing, followed by failure mode evaluation under an optical microscope (30×). A two-way analysis of variance and Tukey test (α=0.05) were used for data analysis. Alumina air abrasion (Al) promoted higher bond values for the three luting systems, except for SU, which showed the best results without air abrasion, while with air abrasion, Al-SU, Al-ZP, and Al-MB presented higher values compared to Al-AP. We concluded that the alumina air abrasion of zirconia surfaces seemed to be dispensable for the SU group, while air abrasion (topographical alterations) enhanced the adhesion of the ZP, MB, and AP groups.

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Silva, Paulo César G., Mariane Gonçalves, Telma N. do Nascimento, and André Luiz B. Centola. "Effect of air abrasion on tensile bond strength of a single-bottle adhesive/indirect composite system to enamel." Brazilian Dental Journal 18, no. 1 (2007): 45–48. http://dx.doi.org/10.1590/s0103-64402007000100010.

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This study evaluated the efficiency of air abrasion alone and associated with phosphoric acid etching on tensile bond strength of a single-bottle adhesive/indirect composite restorative system (Bond 1/Alert) to human enamel. Forty enamel surfaces from extracted human third molars were assigned to 4 groups (n= 10). Mach 4.1 (Kreativ Inc.) air abrasion equipment was used for 20 s. A special system of rod pairs aligned in a specific apparatus was used for tensile strength tests, according to ISO/TR 11405 standard (1994) with some modifications. Bond strength means were: G1 (air abrasion + rinsing + condensable composite resin Alert) = 3.46 ± 0.83 MPa; G2 (air abrasion + rinsing + Bond 1 adhesive system + Alert) = 4.00 ± 1.60 MPa; G3 (air abrasion + rinsing + 37% phosphoric acid + rinsing + Bond 1 + Alert) = 20.80 ± 3.95 MPa; and G4 (37% phosphoric acid + rinsing + Bond 1 + Alert) = 17.00 ± 2.74 MPa. The statistical analysis by Kruskal-Wallis test revealed that G1 and G2 presented statistically significant difference (p< 0.05) from G3 and G4 (p<0.01) and G1 and G3 did not differ significantly (p> 0.05) from G2 and G4, respectively.

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Ahn, Jin-Soo, Young-Ah Yi, Yoon Lee, and Deog-Gyu Seo. "Shear Bond Strength of MDP-Containing Self-Adhesive Resin Cement and Y-TZP Ceramics: Effect of Phosphate Monomer-Containing Primers." BioMed Research International 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/389234.

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Purpose. This study was conducted to evaluate the effects of different phosphate monomer-containing primers on the shear bond strength between yttria-tetragonal zirconia polycrystal (Y-TZP) ceramics and MDP-containing self-adhesive resin cement.Materials and Methods. Y-TZP ceramic surfaces were ground flat with #600-grit SiC paper and divided into six groups (n=10). They were treated as follows: untreated (control), Metal/Zirconia Primer, Z-PRIME Plus, air abrasion, Metal/Zirconia Primer with air abrasion, and Z-PRIME Plus with air abrasion. MDP-containing self-adhesive resin cement was applied to the surface-treated Y-TZP specimens. After thermocycling, a shear bond strength test was performed. The surfaces of the Y-TZP specimens were analyzed under a scanning electron microscope. The bond strength values were statistically analyzed using one-way analysis of variance and the Student–Newman–Keuls multiple comparison test (P<0.05).Results. The Z-PRIME Plus treatment combined with air abrasion produced the highest bond strength, followed by Z-PRIME Plus application, Metal/Zirconia Primer combined with air abrasion, air abrasion alone, and, lastly, Metal/Zirconia Primer application. The control group yielded the lowest results (P<0.05).Conclusion. The application of MDP-containing primer resulted in increased bond strength between Y-TZP ceramics and MDP-containing self-adhesive resin cements.

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Masri, Dhuha M., Nisreen S. Alghamdi, Najoud S. Alhawiti, Renad M. Alawi, Shroug K. Alhothari, Salah A. Yousief, and Mahmoud A. Mekky. "The Effect of Surface Treatments on the Shear Bond Strength of Indirect Esthetic Restorative Materials to Dentin." Open Access Macedonian Journal of Medical Sciences 7, no. 15 (August 11, 2019): 2528–32. http://dx.doi.org/10.3889/oamjms.2019.724.

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AIM: The purpose of this research was to evaluate the influence of air abrasion, hydrofluoric acid, and combination of air abrasion and hydrofluoric acid on the shear bond strength between dentin and CEREC, VITA VM7, and E-max. MATERIAL AND METHODS: Ninety extracted human lower molars were used. The teeth were divided into three groups (n = 30) according to the surface treatment (air abrasion, hydrofluoric acid, and air abrasion + hydrofluoric acid). Each group was then subdivided into three subgroups (n = 10) according to the ceramic material (CEREC, E-max, and VITA VM7). Shear bond strength was determined by the compressive mode of force applied at the ceramic-tooth interface. The collected data were analysed using two-way analysis of variance (ANOVA), and Tukey’s post-hoc test statistical significance was set at P < 0.05. RESULTS: The highest mean shear bond strength value was recorded with the CEREC group treated by hydrofluoric acid (8.01MPa). While the least mean shear bond strength was recorded with the Cerec group but when treated by air abrasion alone, it was 4.33MPa. CONCLUSION: Hydrofluoric acid etching for various types of ceramic restoration improved the bond strength to dentin.

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Nadiger, Ramesh, Bhupender Yadav, Puja Malhotra, and Harish Yadav. "Effect of Air Abrasion on the Marginal Configuration of Titanium Crowns after Casting." International Journal of Prosthodontics and Restorative Dentistry 3, no. 4 (2013): 131–35. http://dx.doi.org/10.5005/jp-journals-10019-1092.

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ABSTRACT The present study was carried out to evaluate and compare the effect of air abrasion on marginal accuracy of titanium crowns after casting. A total of 90 samples were prepared which were divided in three groups of 30 specimens each of shoulder, chamfer and shoulder with bevel marginal configurations respectively. Thirty samples were air abraded using 120 μm particle size of aluminum oxide particle and remaining 30 specimens by 250 μm particle sizes respectively. The length from the reference line and tip of the cast specimens before and after sand blasting was measured with the help of traveling microscope. Same specimens were subjected to trimming for removal of alpha case layer for a standardized time, speed and pressure. The basic data of marginal discrepancy due to sand blasting and alpha case removal for each marginal configuration were evaluated and compared with data for the control group using student ‘t’ test and ANOVA. The smaller the margin angle, the greater was the loss of alloy after air abrasion (shoulder with bevel > chamfer > shoulder). Particle size of the abrasive also influenced the vertical marginal loss, as the particle size increased from 120 to 250 μm, marginal loss also increased. Finishing of casting margins after sandblasting also induced vertical marginal loss. How to cite this article Yadav B, Malhotra P, Nadiger R, Yadav H. Effect of Air Abrasion on the Marginal Configuration of Titanium Crowns after Casting. Int J Prosthodont Restor Dent 2013;3(4):131-135.

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Maruo, Yukinori, Kumiko Yoshihara, Masao Irie, Goro Nishigawa, Noriyuki Nagaoka, Takuya Matsumoto, and Shogo Minagi. "Flexural properties, bond ability, and crystallographic phase of highly translucent multi-layered zirconia." Journal of Applied Biomaterials & Functional Materials 18 (January 2020): 228080002094271. http://dx.doi.org/10.1177/2280800020942717.

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This study investigated the mechanical properties, bond ability, and crystallographic forms of different sites in a highly translucent, multi-layered zirconia disk. Flexural properties, bond ability to resin cement, and phase composition were investigated at three sites of a highly translucent, multi-layered zirconia disk: incisal, middle, and cervical. Flexural strength (FS) and flexural modulus (FM) were measured with static three-point flexural test. Shear bond strength (SB) to resin cement was measured after 24 h storage (37°C). Phase composition under mechanical stress was analyzed using X-ray diffraction. Without air abrasion, FS at the incisal site yielded the lowest value and was significantly lower than the middle and cervical sites. Air abrasion lowered the FS of each site. FM at the incisal site without air abrasion showed the significantly lowest value, and air abrasion increased its FM value. At the middle and cervical sites, their FM values were higher than the incisal site but were not significantly affected by air abrasion. SB value did not show significant differences among the sites. After sintering, cubic zirconia was detected at each site. Rhombohedral phase transformation occurred after mirror polishing. In highly translucent, multi-layered zirconia which was mainly composed of cubic zirconia, rhombohedral phase transformation occurred under mechanical stress and resulted in weakened mechanical properties.

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Fumes, Ana Caroline, Daniele Lucca Longo, Andiara De Rossi, Tatiana Kelly da Silva Fidalgo, Francisco Wanderley Garcia de Paula e Silva, Maria Cristina Borsatto, and Erika Calvano Küchler. "Microleakage of Sealants after Phosphoric Acid, Er: YAG Laser and Air Abrasion Enamel Conditioning: Systematic Review and Meta-Analysis." Journal of Clinical Pediatric Dentistry 41, no. 3 (January 1, 2017): 167–72. http://dx.doi.org/10.17796/1053-4628-41.3.167.

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Purpose: The aim of this systematic review and meta-analysis is to answer the focused question: Does the application of phosphoric acid, Er:YAG laser and air abrasion enamel conditioning methods previous to the oclusal sealant application in human permanent molars influence the microleakage? Study design: A literature research was carried out in the Pubmed Medline, Web of Science, Scopus and Cochrane databases using with the MeSH terms and keyword search strategy. A supplemental hand search of the references of retrieved articles was also performed. Inclusion criteria comprised ex vivo studies (extracted teeth) with permanent human teeth that used chemical (phosphoric acid) or mechanical (Er:YAG laser and air abrasion) conditioning methods previous the sealant application. The studies should evaluate microleakage as an outcome. Meta-analysis pooled plot were obtained comparing the microleakage after pre-treatment with phosphoric acid, Er:YAG and air abrasion enamel conditioning for sealant application using RevMan software. Results: The search resulted in 164 articles, 55 records were excluded because they were duplicated. The analysis of titles and abstracts resulted in the exclusion of 105 studies. Four studies were included in the systematic review and the meta-analysis. According to the risk of bias evaluation, the four studies were considered low risk of bias. The meta-analysis showed that phosphoric acid had lower microleakage than Er:YAG laser (p < 0.001) and air abrasion (p < 0.001), with heterogeinity of I2 = 0% and I2 = 71%, respectively. It was not found statistical difference when compared phosphoric acid and phosphoric acid combined with Er:YAG laser and air abrasion (p > 0.05). Conclusion: The evidence supports that the pretreatment with phosphoric acid leads lower microleakage in oclusal sealants than Er:YAG laser and air abrasion.

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Skienhe, Hasan, and Roland Habchi. "Structural and Morphological Evaluation of Presintered Zirconia following Different Surface Treatments." Journal of Contemporary Dental Practice 19, no. 2 (2018): 156–65. http://dx.doi.org/10.5005/jp-journals-10024-2230.

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ABSTRACT Aim The aim of this study was to evaluate the effect of different surface treatments on roughness, grain size, and phase transformation of presintered zirconia. Materials and methods Surface treatments included airborne particle abrasion (APA) before and after sintering with different particles shape, size, and pressure (50 μm Al2O3, 50 μm glass beads, and ceramic powder). Thirty-five square-shaped presintered yttrium-stabilized tetragonal zirconia polycrystal (Y-TZP) ceramic slabs (Zenostar ZR bridge, Wieland) were prepared (4 mm height × 10 mm width × 10 mm length) and polished with silicon carbide grit papers #800, 1000, 1200, 1500, and 2000 to ensure identical initial roughness. Specimens were divided into five groups according to surface treatment: group I (control): no surface treatment; group II: APA 50 μm Al2O3 after sintering; group III: APA 50 μm Al2O3 particles before sintering; group IV: APA 50 μm glass bead particles before sintering; and group V: APA ceramic powder before sintering. Specimens were analyzed using scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray diffraction (XRD) analyses, and tested for shear bond strength (SBS). Data were statistically analyzed using one-way analysis of variance (ANOVA) followed by post hoc tests for multiple comparisons Tukey's test (α ≥ 0.05). Results Air abrasion before sintering significantly increased the surface roughness when compared with groups I and III. The highest tetragonal to monoclinic (t-m) phase transformation (0.07%) was observed in group III, and a reverse transformation was observed in presintered groups (0.01%). Regarding bond strength, there was a significant difference between APA procedures pre- and postsintering. Conclusion Air abrasion before sintering is a valuable method for increasing surface roughness and SBS. The abrasive particles’ size and type used before sintering had a little effect on phase transformation. Clinical significance Air abrasion before sintering could be supposed to be an alternative surface treatment method to air abrasion after sintering. How to cite this article Skienhe H, Habchi R, Ounsi HF, Ferrari M, Salameh Z. Structural and Morphological Evaluation of Presintered Zirconia following Different Surface Treatments. J Contemp Dent Pract 2018;19(2):156-165.

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Anja, Baraba, Dukić Walter, Chieffi Nicoletta, Ferrari Marco, Sonja Pezelj Ribarić, and Miletić Ivana. "Influence of Air Abrasion and Sonic Technique on Microtensile Bond Strength of One-Step Self-Etch Adhesive on Human Dentin." Scientific World Journal 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/368745.

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The purpose of thisin vitrostudy was to evaluate the microtensile bond strength of one-step self-etch adhesive to human dentin surface modified with air abrasion and sonic technique and to assess the morphological characteristics of the pretreated dentin surface. The occlusal enamel was removed to obtain a flat dentin surface for thirty-six human molar teeth. The teeth were randomly divided into three experimental groups (n= 12 per group), according to the pretreatment of the dentin: (1) control group, (2) air abrasion group, and (3) sonic preparation group. Microtensile bond strength test was performed on a universal testing machine. Two specimens from each experimental group were subjected to SEM examination. There was no statistically significant difference in bond strength between the three experimental groups (P> 0.05). Mean microtensile bond strength (MPa) values were 35.3 ± 12.8 for control group, 35.8 ± 13.5 for air abrasion group, and 37.7 ± 12.0 for sonic preparation group. The use of air abrasion and sonic preparation with one-step self-etch adhesive does not appear to enhance or impair microtensile bond strength in dentin.

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Tomków, Jacek, Artur Czupryński, and Dariusz Fydrych. "The Abrasive Wear Resistance of Coatings Manufactured on High-Strength Low-Alloy (HSLA) Offshore Steel in Wet Welding Conditions." Coatings 10, no. 3 (February 29, 2020): 219. http://dx.doi.org/10.3390/coatings10030219.

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Some marine and offshore structure elements exploited in the water cannot be brought to the surface of the water as this will generate high costs, and for this reason, they require in-situ repairs. One of the repair techniques used in underwater pad welding conditions is a wet welding method. This paper presents an investigation of the abrasive wear resistance of coatings made in wet welding conditions with the use of two grades of covered electrodes—an electrode for underwater welding and a commercial general use electrode. Both electrodes were also used for manufacturing coatings in the air, which has been also tested. The Vickers HV10 hardness measurements are performed to demonstrate the correlation in abrasive wear resistance and the hardness of each specimen. The microscopic testing was performed. For both filler materials, the coatings prepared in a water environment are characterized by higher resistance to metal–mineral abrasion than coatings prepared in an air environment—0.61 vs. 0.44 for commercial usage electrode and 0.67 vs. 0.60 for underwater welding. We also proved that in the water, the abrasive wear was greater for specimens welded by the general use electrode, which results in a higher hardness of the layer surface. In the air welding conditions, the layer welded by the electrode for use in the water was characterized by a lower hardness and higher resistance to metal–mineral abrasion. The microstructure of the prepared layers is different for both the environment and both electrodes, which results in abrasive wear resistance.

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Bunz, Oskar, Paul Kalz, Carla I. Benz, Ella A. Naumova, Wolfgang H. Arnold, and Andree Piwowarczyk. "Cold Atmospheric Plasma Improves Shear Bond Strength of Veneering Composite to Zirconia." Dentistry Journal 9, no. 6 (May 21, 2021): 59. http://dx.doi.org/10.3390/dj9060059.

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Chipping of veneering is the most common clinical complication for zirconia restorations. Veneering composite could be a promising alternative to renew restorations. Zirconia discs (3-YSZ) were prepared with varying surface treatments and bonded to indirect composite as follows: air abrasion and Scotchbond Universal (A/SU); air abrasion and Clearfil Ceramic Primer (A/C); air abrasion and MKZ Primer (A/M); air abrasion and Monobond Plus (A/MP); silica-coating and Scotchbond Universal (S/SU); air abrasion (AP/SU), additional cold atmospheric plasma treatment, and Scotchbond Universal. An indirect composite material was then applied to the zirconia specimens. Specimens were divided into subgroups for short-term (14 days storage at 37 °C and 5000 thermal cycles) and long-term (250 days storage and 37,500 thermal cycles) artificial aging. Shear bond strength measurement (SBS) was performed, and data were analyzed by Kruskal–Wallis-test and multiple comparison testing with Dunn’s correction (p ≤ 0.05). The median SBS values (MPa) of short- and long-term artificial aging were: 3.09/1.36 (A/SU); 0.77/1.43 (S/SU); 2.82/2.15 (AP/SU); 1.97/1.80 (A/C); 2.01/1.58 (A/M); and 1.70/1.68 (A/MP). For short-term artificial aging A/SU showed the highest median SBS values, whereas in the long-term trial, AP/SU showed the highest values and the difference was significant. A prolonged artificial aging decreased SBS in all groups, except S/SU. In summary, treatment with CAP can improve SBS in the long-term.

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Hegde, VivekS, and RoheetA Khatavkar. "A new dimension to conservative dentistry: Air abrasion." Journal of Conservative Dentistry 13, no. 1 (2010): 4. http://dx.doi.org/10.4103/0972-0707.62632.

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P, Sambashiva Rao, Pratap Kumar M, Nanda kumar K, and Sandya PS. ""Drill-less" Dentistry- The New Air Abrasion Technology." Indian Journal Of Dental Advancements 03, no. 03 (September 28, 2011): 598–601. http://dx.doi.org/10.5866/3.3.598.

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Taha, A. A., P. S. Fleming, R. G. Hill, and M. P. Patel. "Enamel Remineralization with Novel Bioactive Glass Air Abrasion." Journal of Dental Research 97, no. 13 (August 6, 2018): 1438–44. http://dx.doi.org/10.1177/0022034518792048.

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Enamel demineralization or white spot lesions (WSLs) are a frequent complication associated with fixed appliance–based orthodontic treatment. The remineralization potential of a novel fluoride-containing bioactive glass (QMAT3) propelled via an air abrasion system was compared with Sylc glass and artificial saliva on artificially induced WSLs. Thirty extracted human premolars were randomly assigned into 3 groups ( n = 10) per method of treatment and scanned with optical coherence tomography and noncontact profilometer in the 4 enamel states: sound, demineralized, after glass propulsion, and after immersion in artificial saliva. Knoop hardness testing was also performed. Twenty additional prepared teeth samples were also randomly selected for examination by scanning electron microscopy and energy-dispersive X-ray spectroscopy (2 teeth per technique) under each of the 4 enamel conditions. 19F MAS-NMR (magic angle spinning–nuclear magnetic resonance) was also used to detect the type of apatite formed on the enamel surface. Significant enamel remineralization with surface roughness and intensity of light backscattering similar to that of sound enamel was observed following treatment with QMAT3. In addition, mineral deposits were detected on the remineralized enamel surfaces, forming a protective layer and improving its hardness. This layer was rich in calcium, phosphate, and fluoride; 19F MAS-NMR confirmed the formation of fluorapatite. This finding is particularly beneficial since fluorapatite is more chemically stable than hydroxyapatite and has greater resistance to acid attack. Hence, a promising fluoride-containing bioactive glass for enamel remineralization has been developed, although further clinical evaluation and refinement is required.

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Day, Teresa. "Microdentistry and air abrasion : dentistry without the drill." Dental Nursing 2, no. 9 (November 2006): 442–43. http://dx.doi.org/10.12968/denn.2006.2.9.29905.

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Caneppele, Taciana Marco Ferraz, Lucas V. Zogheib, Isabela Gomes, Andressa S. Kuwana, and Clóvis Pagani. "Bond strength of a composite resin to an adhesive luting cement." Brazilian Dental Journal 21, no. 4 (2010): 322–26. http://dx.doi.org/10.1590/s0103-64402010000400006.

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This study evaluated the influence of surface treatment on the shear bond strength of a composite resin (CR), previously submitted to the application of a temporary cement (TC), to an adhesive luting cement. Eight-four CR cylinders (5 mm diameter and 3 mm high) were fabricated and embedded in acrylic resin. The sets were divided into 6 groups (G1 to G6) (n=12). Groups 2 to 6 received a coat of TC. After 24 h, TC was removed and the CR surfaces received the following treatments: G2: ethanol; G3: rotary brush and pumice; G4: air-abrasion; G5: air-abrasion and adhesive system; G6: air-abrasion, acid etching and adhesive system. G1 (control) did not receive TC or any surface treatment. The sets were adapted to a matrix and received an increment of an adhesive luting cement. The specimens were subjected to the shear bond strength test. ANOVA and Tukeyʼs tests showed that G3 (8.53 MPa) and G4 (8.63 MPa) differed significantly (p=0.001) from G1 (13.34 MPa). The highest mean shear bond strength values were found in G5 (14.78 MPa) and G6 (15.86 MPa). Air-abrasion of CR surface associated with an adhesive system provided an effective bond of the CR to the adhesive luting cement, regardless the pre-treatment with the phosphoric acid.

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Duque, Cristiane, Renata Cristiane da Silva, and Lourdes dos Santos-Pinto. "Treatment options for the occlusal surface of first permanent molars." Journal of Clinical Pediatric Dentistry 29, no. 1 (September 1, 2005): 5–9. http://dx.doi.org/10.17796/jcpd.29.1.c514553586574365.

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Restorative dentistry has been increasingly concerned with preservation of the dental structure. For that reason, ultraconservative cavity preparations have been performed with air abrasion systems. The aim of this study was to present treatment options for the occlusal surface of first permanent molars with employment of the conventional method and the air abrasion system for accomplishment of the cavity preparation and a composite occlusal matrix for an accurate reproduction of the tooth surface.

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Susiati, Dwi, and Sri Setiadji. "STATUS HUKUM HAK MILIK ATAS TANAH YANG TERKENA ABRASI." Mimbar Keadilan 13, no. 1 (January 24, 2020): 96–107. http://dx.doi.org/10.30996/mk.v13i1.3082.

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Abrasion is a natural disaster that results in the owner of the right to land losing the right to control, use or take advantage of the land, because the land is lost in part or in whole due to erosion by water. Article 27 of the Law On Agraria determines that property rights over land are destroyed if the land is destroyed. In this study, the author will analyze the legal status of property of land affected by abrasion with the formulation of the problem What is the legal status of property rights on land affected by abrasion according to Government Regulation Number 24 of 1997 concerning Land Registration and how to guarantee the protection of affected land rights abrasion. The results of this study are that the status of land rights affected by abrasion is abolished, both in the provisions of the Law On Agraria and Government Regulation Number 24 of 1997 concerning Land Registration because it is no longer compatible with physical data or juridical data as a strong evidence. The government has an obligation to provide guarantees and protection of rights to land affected by abrasion and those that have been affected by abrasion in part or in whole. On the basis of the state's right to control Article 2 of the Law On Agraria the state has the right to regulate land use, inventory, and maintenance to prevent and reduce the impact of abrasion on its citizens. The government can also provide compensation as contained in Article Number 24 of 2007 concerning Disaster Management which determines that the Government and regional governments are responsible for the implementation of disaster management.Abrasi merupakan bencana alam yang mengakibatkan pemilik hak atas tanah kehilangan hak untuk menguasai, menggunakan, atau mengambil manfaat atas tanah, karena tanah tersebut hilang sebagian atau seluruhnya akibat pengikisan oleh air. Pasal 27 UUPA menentukan hak milik atas tanah hapus, apabila tanahnya musnah. Pada penelitian ini, penulis akan menganalisa tentang status hukum hak milik atas tanah yang terkena abrasi dengan rumusan masalah Bagaimana status hukum hak milik atas tanah yang terkena abrasi menurut PP No. 24 Tahun 1997 tentang Pendaftaran Tanah dan bagaimana jaminan perlindungan hak-hak tanah yang terdampak abrasi. Hasil dari penelitian ini adalah bahwa status hak atas tanah yang terkena abrasi adalah hapus, baik dalam ketentuan UUPA maupun PP No. 24 Tahun 1997 tentang Pendaftaran Tanah karena tidak sesuai lagi dengan data fisik maupun data yuridis sebagai alat bukti yang kuat. Pemerintah mempunyai kewajiban untuk memberikan jaminan dan perlindungan hak-hak atas tanah yang terdampak abrasi maupun yang sudah terkena abrasi baik sebagian maupun seluruh tanahnya. Atas dasar hak menguasai oleh negara Pasal 2 UUPA negara berhak mengatur peruntukan, penggunaan, persediaan,dan pemeliharaan tanah untuk mencegah dan mengurangi dampak abrasi bagi warga negaranya. Pemerintah juga dapat memberikan ganti kerugian sebagaimana yang ada di dalam UU No. 24 Tahun 2007 tentang Penanggulangan Bencana yang menentukan bahwa Pemerintah dan pemerintah daerah menjadi penanggung jawab dalam penyelenggaraan penang-gulangan bencana.

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Borsatto, Maria Cristina, Alma Blásida Elisaur Benitez Catirse, Regina Guenka Palma Dibb, Telma Nunes do Nascimento, Renata Andréa Salvitti de Sá Rocha, and Silmara Aparecida Milori Corona. "Shear bond strength of enamel surface treated with air-abrasive system." Brazilian Dental Journal 13, no. 3 (2002): 175–78. http://dx.doi.org/10.1590/s0103-64402002000300006.

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The aim of this study was to evaluate the shear bond strength of a composite resin to dental enamel, using three different surface treatments. Fifteen sound third molars were randomly assigned to three groups. The mesial and distal surfaces were flattened and covered using adhesive tape with a central orifice delimiting the adhesion area (7.07 mm²). Group I, the enamel surface was conditioned with 37% phosphoric acid for 15 s; group II, the surface was treated using air abrasion with aluminum oxide; group III, the enamel surface was treated using an association of air abrasion with aluminum oxide and 37% phosphoric acid. The Single Bond (3M) adhesive system was applied and a Teflon matrix was placed and filled with composite resin Z-100 (3M) and light-cured. The shear bond strength test was performed with a universal testing machine. The acid etching technique and air abrasion with aluminum oxide associated with acid etching had the highest shear bond strength values. Data were subjected to statistical analysis using ANOVA and the Tukey test, and no statistically significant difference in shear bond strength was observed between group I (12.49 ± 2.85 MPa) and group III (12.59 ± 2.68 MPa). In contrast, both groups had statistically better shear bond strengths compared to group II (0.29 ± 0.56 MPa; p<0.05). Air abrasion with aluminum oxide does not substitute acid etching. The association of these methods to obtain adequate adhesion to the substrate is necessary.

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Neuhaus, K. W., P. Ciucchi, M. Donnet, and A. Lussi. "Removal of Enamel Caries with an Air Abrasion Powder." Operative Dentistry 35, no. 5 (September 1, 2010): 538–46. http://dx.doi.org/10.2341/10-009-l.

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Clinical Relevance The results of the current study indicate that air abrasion with a powder for selective preparation of carious enamel saves healthy tooth substance. It also has a diagnostic potential for operative intervention in patients with high caries risk, because only carious enamel with underlying dentin caries is abraded. Furthermore, this powder could be used in cavitated lesions for selective enamel removal.

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CHRISTENSEN, GORDON J. "AIR ABRASION TOOTH CUTTING: STATE OF THE ART 1998." Journal of the American Dental Association 129, no. 4 (April 1998): 484–85. http://dx.doi.org/10.14219/jada.archive.1998.0248.

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Goldich, S. S., and Lynn B. Fischer. "Air abrasion experiments in UPb dating of zircon." Chemical Geology: Isotope Geoscience section 58, no. 3 (March 1986): 195–215. http://dx.doi.org/10.1016/0168-9622(86)90010-2.

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Cen, Guo Ping, Qing Tao Liu, Gang Hong, and Jin Hua Wang. "Durability of the Airfield Pavement Concrete on the Qinghai-Tibet Plateau." Applied Mechanics and Materials 193-194 (August 2012): 914–18. http://dx.doi.org/10.4028/www.scientific.net/amm.193-194.914.

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This paper analysed the unique climatic characteristics of Qinghai-Tibet plateau and the durability requirements of airfield pavement concrete, improved the frost resistance, impermeability and abrasion resistance of pavement concrete by mixing air-entraining and water-reducing admixtures. The relations of content of the air-entraining admixture, strength and frost resistance of concrete were tested systematically in laboratory, the appropriate air content was put forward. The tests shown that the frost resistance, impermeability and abrasion resistance fulfilled the requirements of the plateau airfield pavement. In the field of Yushu Airfield in Qinghai, it studied the raw materials selecting, control of air content and construction technics, ensured the durability of the pavement concrete and gained well effect.

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Achmad, Muh Harun. "Penanganan fluorosis pada gigi sulung dengan menggunakan teknik mikroabrasi." Journal of Dentomaxillofacial Science 6, no. 1 (April 30, 2007): 42. http://dx.doi.org/10.15562/jdmfs.v6i1.136.

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Fluorosis is a pathological endemic effect of ion intake of flour which is more than 1ppm. Enamel fluorosis is tooth enamel demineralization due to excessive flour intakeduring tooth calcification period. Fluorosis is disparity of tooth which is initially markedwith a white line across the enamel surface, and at severe level can change tooth form.Dental fluorosis is hypoplasia or hypomaturation of tooth enamel or dentine because ofchronic usage of excessive fluor at period and development of dentition. Dental fluorosisis qualitative defect of enamel, resulted from the increase of fluor concentration at cellmicroenvironment of ameloblast during development and tooth formation. Quantitativedefect of enamel can occur on severe type of dental fluorosis. Microabrasion, consist ofair abrasion and enamel microabrasion, is a method of reducing tooth structure which isthe best alternative rather than drilling method. The mechanism of air abrasion techniqueis blast pressure of abrasive particles to remove tooth caries. The principle of kineticenergy is the abrasive particles with high pressure and speed, hit the tooth, remove toothcaries, and reduce tooth structure.

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Cardenas-Duque, Lina Maria, Makoto Yoshida, and George Goto. "Pulpal response to different pulp capping methods after pulp exposure by air abrasion." Journal of Clinical Pediatric Dentistry 26, no. 3 (April 1, 2002): 269–73. http://dx.doi.org/10.17796/jcpd.26.3.1235wp665xmxx24u.

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Air abrasion is regaining popularity especially in the area of pediatric dentistry due to its ease of use and its advantages. Due to the lost of tactile information, while using this technique, there is an increased risk for pulpal exposure. On the other hand, Ca(OH)2 medicament has been proven to induce dentin bridge formation, but an adequate sealing seems to be even more important that the capping material used. The purpose of this study was two fold: to assess the pulpal response after pulpal exposure by air abrasion and to evaluate the healing potential after using Ca(OH)2 medicament or Liner Bond II™ as a capping agent. Two hundred sixteen teeth from mixed-bred dogs were used in this study. The teeth were divided into three groups,A) pulpal exposure by air-abrasion followed by sealing of the cavity with Liner Bond II™, B) pulpal exposure by air-abrasion and Ca(OH)2 pulp capping and C) pulpal exposure by high-speed followed by air-abrasion and Ca(OH)2 pulp capping as a control group. The animals were sacrificed after 7, 14, 30 and 60 days and a histopathological evaluation was undertaken. After applying Analysis of Variance to compare the groups, it was observed that at earlier observation periods, the inflammatory criteria near the exposure site were different among the groups. As time elapsed, the inflammation was resolved in the pulp tissue, however, the odontoblastic layer and the dentin bridge formation had a highly statistically significant difference (p<0.001) among the various groups at all observation periods. In addition, a positive correlation was observed between the organization of the odontoblastic layer and the dentin bridge formation mainly after 30 days. It could be concluded that dentin bridge formation could be achieved with the use of Ca(OH)2 or Liner Bond II™ as capping agent with an adequate sealing. However, the formation is delayed especially when Liner Bond II™ is used as capping agent.

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Journal articles on the topic 'Air abrasion'

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