Effect of adhesive systems and surface treatment of methacrylate resin-based fiber posts on post-resin-dentin bonds.
OBJECTIVE
To evaluate the effect of different fiber post surface treatments on bond strength.


METHODS
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.


RESULTS
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.
Monticelli
Francesca
F
Department of Dental Materials, University of Granada, Spain.
Osorio
Raquel
R
Albaladejo
Alberto
A
Aguilera
Fátima S
FS
Tay
Franklin R
FR
Ferrari
Marco
M
Toledano
Manuel
M
D000134:Acid Etching, Dental / Q000379:methods; D000269:Adhesives / Q000627:therapeutic use*; D001840:Dental Bonding / Q000379:methods*; D003738:Dental Cements / Q000627:therapeutic use*; D017220:Dentin-Bonding Agents / Q000737:chemistry / Q000627:therapeutic use*; D006801:Humans; D008689:Methacrylates / Q000737:chemistry; D011176:Post and Core Technique; D013499:Surface Properties; D013718:Tensile Strength
D000269:Adhesives; D003738:Dental Cements; D017220:Dentin-Bonding Agents; D008689:Methacrylates; C076808:Monobond S