In vivo/in vitro evaluation of metal-free adhesive restoration

本研究旨在探讨临床联合治疗下无金属黏合剂修复体的美观性。研究了复合应力模拟口腔环境下修复体的微渗漏、与牙本质表面的拉伸结合强度以及基于结合强度的结合可靠性。采用体内/体外便携式粘接仪测量树脂粘接体系对临床制备的各类牙表面的拉伸粘接强度，并对其进行评价。从所获得的结果中，证实了许多国际上以往研究未阐明的无金属粘接修复体的客观行为。

The purpose of this research project was to examine the behaviors of esthetic metal-free adhesive restorations under clinical combinations. Microleakage of the restorations, tensile-bond strength to intra-cavity dentin surface and bonding reliability based on bond strength under combination stress simulating intra-oral environment were investigated. Tensile-bond strengths of resin adhesive systems to various types of tooth surface prepared clinically were measured with an in vivo/in vitro portable adhesion tester and evaluated.From the obtained results, many objective behaviors of metal-free adhesive restorations, that were not clarified by previous researches carried out in the world, were confirmed.