Effect of adhesive systems and surface treatment of methacrylate resin-based fiber posts on post-resin-dentin bonds
Monticelli, F.; Osorio, R.; Albaladejo, A.; Aguilera, F.át.S.; Tay, F.R.; Ferrari, M.; Toledano, M.
American Journal of Dentistry 20(4): 231-234
2007
ISSN/ISBN: 0894-8275 PMID: 17907485 Document Number: 608861
To evaluate the effect of different fiber post surface treatments on bond strength. Extracted endodontically-treated premolars were prepared for the cementation of a methacrylate resin-based fiber post (FRC Postec). The posts received one of the three surface pre-treatments: silane application; hydrofluoric acid-etching and silane application or no treatment. A light-cured composite was used with one of the three dentin adhesives for luting: Single Bond; Clearfil Photo Bond and Clearfil New Bond, followed by a light-cured composite core build-up. Specimens were serially sliced into 0.8 x 0.8 mm-thick beams and loaded in tension until failure. Significant differences in bond strengths were recorded among the dentin adhesives (P< 0.05). However, post pre-treatment did not affect the bonding efficacy of the adhesives except for Clearfil New Bond.