自酸蚀粘结剂在正常和龋损牙本质上的微拉伸粘结强度评估。

Evaluation of microtensile bond strength of self-etching adhesives on normal and caries-affected dentin.

作者信息

Shibata Shizuma, Vieira Luiz Clovis Cardoso, Baratieri Luiz Narciso, Fu Jiale, Hoshika Shuhei, Matsuda Yasuhiro, Sano Hidehiko

机构信息

Department of Dental Sciences, Division of Operative Dentistry, Centre of Heath Sciences, Federal University of Santa Catarina - UFSC.

出版信息

Dent Mater J. 2016;35(2):166-73. doi: 10.4012/dmj.2014-330.

DOI:10.4012/dmj.2014-330

PMID:27041004

Abstract

The purpose of this study was to evaluate the µTBS (microtensile bond strength) of currently available self-etching adhesives with an experimental self-etch adhesive in normal and caries-affected dentin, using a portable hardness measuring device, in order to standardize dentin Knoop hardness. Normal (ND) and caries-affected dentin (CAD) were obtained from twenty human molars with class II natural caries. The following adhesive systems were tested: Mega Bond (MB), a 2-step self-etching adhesive; MTB-200 (MTB), an experimental 1-step self-etching adhesive (1-SEA), and two commercially available one-step self-etching systems, G-Bond Plus (GB) and Adper Easy Bond (EB). MB-ND achieved the highest µTBS (p<0.05). The mean µTBS was statistically lower in CAD than in ND for all adhesives tested (p<0.05), and the 2-step self-etch adhesive achieved better overall performance than the 1-step self-etch adhesives.

摘要

本研究的目的是使用便携式硬度测量装置，评估市售自酸蚀粘结剂与一种实验性自酸蚀粘结剂在正常牙本质和龋损牙本质中的微拉伸粘结强度（µTBS），以标准化牙本质努氏硬度。正常牙本质（ND）和龋损牙本质（CAD）取自20颗患有Ⅱ类自然龋的人类磨牙。测试了以下粘结系统：两步法自酸蚀粘结剂Mega Bond（MB）；实验性一步法自酸蚀粘结剂MTB-200（MTB），以及两种市售一步法自酸蚀系统G-Bond Plus（GB）和Adper Easy Bond（EB）。MB-ND的µTBS最高（p<0.05）。对于所有测试的粘结剂，CAD中的平均µTBS在统计学上低于ND（p<0.05），且两步法自酸蚀粘结剂的整体性能优于一步法自酸蚀粘结剂。