Bonded interface between a self-curing resin and dentin primed with a metalloprotein.
Bonded interface between a self-curing resin and dentin primed with a metalloprotein.
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自固化树脂和涂有金属蛋白的牙本质之间的粘合界面。
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
M. Atsuta
中科院分区：
文献类型：
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作者：
Y. Taira;H. Matsumura;M. Atsuta
本研究的目的是探讨自固化粘接剂与金属蛋白处理的牙本质之间的粘接，从树脂-牙本质杂交和界面聚合的角度。在含有牛心脏细胞色素c（BHCC）的六种实验引物中，三种含有甲基丙烯酸2-羟乙酯（HEMA），其余三种不含。使用的自固化粘合剂由甲基丙烯酸甲酯（MMA）和三丁基硼烷（TBB）组成，含或不含4-甲基丙烯酰氧乙基偏苯三酸酐（4-Meta）。牛牙本质表面用10wt%磷酸蚀刻，涂底漆，然后用不锈钢棒粘合。在水储存24 h后，使用4-Meta/MMA-TBB粘结剂和水性底漆含有0.1 μ mol/g BHCC和35wt% HEMA时获得最佳粘结强度。显微镜观察显示粘接剂、杂交牙本质和牙本质基质之间的连续性。模型实验表明，BHCC加速了来自杂交牙本质的4-Meta/MMA/HEMA混合物的聚合。
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 micromol/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.