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Hybrid layer seals the cementum/4‐META/MMA‐TBB resin interface
Author(s) -
Tanaka Saori,
Sugaya Tsutomu,
Kawanami Masamitsu,
Nodasaka Yoshinobu,
Yamamoto Toshiki,
Noguchi Hiroshi,
Tanaka Yuko,
Ikeda Takatsumi,
Sano Hidehiko,
Sidhu Sharanbir K.
Publication year - 2007
Publication title -
journal of biomedical materials research part b: applied biomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.665
H-Index - 108
eISSN - 1552-4981
pISSN - 1552-4973
DOI - 10.1002/jbm.b.30578
Subject(s) - cementum , dentin , adhesive , materials science , composite material , bond strength , dental cementum , adhesion , dentistry , layer (electronics) , medicine
Abstract Although 4‐META/MMA‐TBB resin has adhesive properties to dentin, and has been clinically used for the bonding treatment of vertically fractured roots and apicoectomy, there has not been any investigation on the adhesion of 4‐META/MMA‐TBB resin to cementum. The purpose of this in vitro study was to evaluate the bonding and the sealing ability of 4‐META/MMA‐TBB resin to cementum. Bovine root cementum and dentin surfaces were treated with a citric acid and ferric chloride solution, and the 4‐META/MMA‐TBB resin was applied on the treated surfaces before testing. The microtensile bond strength and the leakage levels obtained for the cementum were almost equal to those for the dentin. In SEM and TEM observations, a hybrid layer approximately 2–3 μm in thickness was observed at the interface between the resin and the cementum. It is concluded that 4‐META/MMA‐TBB resin adhered to cementum via a hybrid layer on cementum, as previously reported for dentin. © 2006 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2007