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Type: Artigo de periódico
Title: Marginal Microleakage Of Class V Resinbased Composite Restorations Bonded With Six One-step Self-etch Systems
Author: Sanchez-Ayala A.
Farias-Neto A.
Vilanova L.S.R.
Gomes J.C.
Gomes O.M.M.
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 S3 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°C and 55°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 lt; 0.05) at the enamel margins (median, 1.00; Q3-Q1, 1.25-0.00) compared to the dentin margins (median, 0.00; Q3-Q1, 0.25-0.00). The study adhesives showed similar abilities to seal the margins of class V restorations, except for iBond®, which presented lower performance at the enamel margin.
Rights: aberto
Identifier DOI: 10.1590/S1806-83242013000300003
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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