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Bonded interface between a self‐curing resin and dentin primed with a metalloprotein
Author(s) -
Taira Yohsuke,
Matsumura Hideo,
Atsuta Mitsuru
Publication year - 2003
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.10028
Subject(s) - dentin , materials science , adhesive , polymerization , luting agent , curing (chemistry) , bond strength , methacrylate , phosphoric acid , methyl methacrylate , dental bonding , composite material , nuclear chemistry , polymer chemistry , chemistry , layer (electronics) , polymer , metallurgy
The purpose of this study was to investigate adhesive bonding between a self‐curing luting agent and dentin conditioned with a metalloprotein in terms of resin–dentin hybridization and interfacial polymerization. Of the six experimental primers containing bovine heart cytochrome c (BHCC), three contained 2‐hydroxyethylmethacrylate (HEMA) and the remaining three did not. The self‐curing luting agent used consisted of methyl methacrylate (MMA) and tri‐ n ‐butylborane (TBB) with or without 4‐methacryloyloxyethyl trimellitate anhydride (4‐META). Bovine dentin surfaces were etched with 10wt% phosphoric acid, primed, and then bonded with stainless steel rods. After 24 h of water storage, the optimum bond strength was obtained with the 4‐META/MMA‐TBB luting agent and the aqueous primer contained 0.1 μmol/g BHCC and 35wt% HEMA. Microscopic observations showed continuity among the luting agent, the hybridized dentin, and the dentin substrate. A model experiment suggested that BHCC accelerates the polymerization of the 4‐META/MMA/HEMA mixture from the hybridized dentin. © 2003 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 66B: 414–418, 2003