Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/64317
Type: Artigo de periódico
Title: Effect of Surface Sealants on Microleakage of Class II Restorations After Thermocycling and Long-term Water Storage
Author: Lima, AF
Soares, GP
Vasconcellos, PH
Ambrosano, GMB
Marchi, GM
Lovadino, JR
Aguiar, FHB
Abstract: Purpose: To evaluate interface degradation leading to marginal microleakeage in Class II restorations that had received an application of surface sealant at the tooth/restoration interface or not. Materials and Methods: Eighty bovine incisors were used, and the teeth were split obliquely, 10 mm from the amelo-dentinal proximal junction, and finished with water abrasive papers to obtain a smooth, flat incisal surface. Cavities were made to simulate Class II preparations (8 mm high, 4 mm wide and 1.5 mm deep), and the restorations were performed with a composite resin. Teeth were then randomly allocated into 8 groups according to the surface sealant (none, Fortify, Single Bond 2, or Scothbond MP Plus) and aging process (none or thermocycling and storage for 6 months). Micro leakage was then evaluated using a dye penetration method immediately after the restoration or after aging. The samples were triturated and assessed by spectrophotometer. Results: Micro leakage was statistically similar in all groups when assessed immediately after the restorative procedure. After aging, teeth sealed with Fortify presented better results than the other groups. Conclusion: Aging causes interface degradation and increased microleakage. Surface sealant can reduce these effects and decrease microleakage in Class II restorations.
Subject: composite resin
surface sealants
microleakage
degradation
Country: EUA
Editor: Quintessence Publishing Co Inc
Rights: aberto
Identifier DOI: 10.3290/j.jad.a19242
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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