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Title: Effect of water contamination on the shear bond strength of five orthodontic adhesives
Author: Vicente, Ascensión
Toledano, Manuel
Bravo, Luis A.
Romeo Garcia, Alejandro
Higuera, Blanca de la
Osorio, Raquel
Keywords: Adhesius dentals
Contaminació de l'aigua
Materials dentals
Dental adhesives
Water pollution
Dental materials
Issue Date: 1-Sep-2010
Publisher: Medicina Oral SL
Abstract: Objectives: To evaluate the shear bond strength and site of failure of brackets bonded to dry and wet enamel. Study design: 50 teeth were divided into ten groups of 5 teeth each (10 surfaces). In half the groups enamel was kept dry before bonding, and in the other half distilled water was applied to wet the surface after etching. The following groups were established: 1)Acid/Transbond-XT (dry/wet) XT; 2) Transbond Plus Self Etching Primer (TSEP)/Transbond-XT paste (dry/wet); 3) Concise (dry), Transbond MIP/Concise (wet), 4) FujiOrtho-LC (dry/wet); 5) SmartBond (dry/wet). Brackets were bonded to both buccal and lingual surfaces. Specimens were stored in distilled water (24 hours at 37ºC) and thermocycled. Brackets were debonded using a Universal testing machine (cross-head speed 1 mm/min). Failure sites were classified using a stereomicroscope. Results: No significant differences in bond strength were detected between the adhesives under wet and dry conditions except for Smart- Bond, whose bond strength was significantly lower under dry conditions. For all the adhesives most bond failures were of mixed site location except for Smartbond, which failed at the adhesive-bracket interface. Conclusions: Under wet conditions the bonding capacity of the adhesives tested was similar than under dry conditions, with the exception of SmartBond which improved under wet conditions
Note: Reproducció del document publicat a:
It is part of: Medicina Oral, Patología Oral y Cirugia Bucal, 2010, vol. 15, num. 5, p. 820-826
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ISSN: 1698-4447
Appears in Collections:Articles publicats en revistes (Odontostomatologia)

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