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Type: Artigo de periódico
Title: Marginal microleakage of class V resin-based composite restorations bonded with six one-step self-etch systems
Author: Sanchez-Ayala, A
Farias-Neto, A
Vilanova, LSR
Gomes, JC
Gomes, OMM
Abstract: This study compared the microleakage of class V restorations bonded with various one-step self-etching adhesives. Seventy class V resin-based composite restorations were prepared on the buccal and lingual surfaces of 35 premolars, by using: Clearfil S-3 Bond, G-Bond, iBond, One Coat 7.0, OptiBond All-In-One, or Xeno IV. The Adper Single Bond etch-and-rinse two-step adhesive was employed as a control. Specimens were thermocycled for 500 cycles in separate water baths at 5 degrees C and 55 degrees C and loaded under 40 to 70 N for 50,000 cycles. Marginal microleakage was measured based on the penetration of a tracer agent. Although the control showed no microleakage at the enamel margins, there were no differences between groups (p = 0.06). None of the adhesives avoided microleakage at the dentin margins, and they displayed similar performances (p = 0.76). When both margins were compared, iBond presented higher microleakage (p < 0.05) at the enamel margins (median, 1.00; Q(3)-Q(1), 1.25-0.00) compared to the dentin margins (median, 0.00; Q(3)-Q(1), 0.25-0.00). The study adhesives showed similar abilities to seal the margins of class V restorations, except for iBond (R), which presented lower performance at the enamel margin.
Subject: Dental Bonding
Dental Marginal Adaptation
Country: Brasil
Editor: Sociedade Brasileira De Pesquisa Odontologica
Rights: aberto
Date Issue: 2013
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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