Long-durable bonding of resin to dentin

Nakabayashi等人首次描述了在聚甲基丙烯酸甲酯(4-META/MMA-TBB树脂)存在下，4-甲基丙烯酰氧乙基偏苯三酸乙酯在甲基丙烯酸甲酯中通过浸渍单体原位聚合的杂化反应与牙本质发生键合。1982年。这一概念在世界范围内被接受，从那时起，许多粘接系统被开发出来。粘接的长寿对牙科治疗至关重要。许多牙科人士不了解脱矿牙本质在口腔事件中接受水解，它主要由胶原蛋白组成。完全杂交热衷于为牙本质提供持久的粘结，但很难消除脱矿的牙本质。要解决这一问题，脱矿牙本质的单体渗透性与单体的扩散性同等重要。研究了酸蚀剂和/或底漆对牙本质湿粘接的影响。用原子力显微镜观察脱矿牙本质与化学物质接触后的形态变化。为了获得与牙本质的持久粘结，本研究提出了牙基材的前处理方法。我们还建议，使用小型哑铃试件的粘接测试对于识别粘结试件中的缺陷是必不可少的，而传统测试试件不可能做到这一点。

Bonding of 4-methacryloyloxyethyl trimellitate anhydride in methyl methacrylate initiated by tri-n-butyl borane in the presence of poly(methyl methacrylate) (4-META/MMA-TBB resin) to dentin via hybridizatin of impregnated monomers that polymerize in situ was first described by Nakabayashi et al. in 1982. This concept was accepted in worldwide and many bonding systems were developed since then.Longevity of bonding is essential for dental treatments. Many dental people do not understand that demineralized dentin accepts hydrolysis in mouth event it is mainly composed of collagen. Complete hybridization is keen to provide long-durable bond to dentin but it has been difficult to eliminate the demineralized dentin. Monomer permeability of demineralized dentin is as important as diffusibility of monomers to dissolve this problem. The effects of etchants and/or primers on wet-bonding to dentin were examined. The morphological change of demineralized dentin after contact with chemicals was observed by atomic force microscope. The pretreatment of tooth substrate to obtain durable bonding to dentin was proposed in this research. We also advise that the bonding test using mini-dumbbell specimens is essential to identify defects in bonded specimens, which are impossible by conventional test specimens.