临时材料对树脂改性玻璃离子水门汀与牙齿粘结强度的影响。

Effect of temporary materials on bond strength of resin-modified glass-ionomer luting cements to teeth.

作者信息

Terata R, Nakashima K, Kubota M

机构信息

Department of Operative Dentistry and Endodontics, School of Dentistry, Iwate Medical University, Morioka, Japan.

出版信息

Am J Dent. 2000 Aug;13(4):209-11.

PMID:11763933

Abstract

PURPOSE

To evaluate the effect of temporary materials on the bond strength of resin-modified glass-ionomer luting cements to teeth.

MATERIALS AND METHODS

240 freshly extracted bovine central incisors were ground to expose enamel and dentin surface. Fuji Lute and Vitremer Luting Cement were bonded to enamel and dentin surfaces after pretreatment for 1 week with (1) a eugenol-containing cement (Propac), (2) a eugenol-free cement (Freegenol Temporary Pack), (3) a polycarboxylate cement (HY-Bond Temporary Cement Hard), (4) a chemically cured temporary restorative resin (Plast Seal), and (5) a light-cured temporary restorative resin (Fermit). The flattened enamel and dentin surfaces were used as controls. After bonded specimens were stored in water at 37 degrees C for 24 hrs, the tensile bond strength was measured at a crosshead speed of 0.5 mm/min. The data were statistically analyzed by one-way ANOVA and Dunnett's Post-hoc Procedure (P < 0.05).

RESULTS

Plast Seal had no adverse effect on the tensile bond strength of Fuji Lute on both enamel and dentin surfaces, while the other temporary materials revealed significant decrease in bond strength. In Vitremer Luting Cement, Propac, and Fermit, as well as Plast Seal demonstrated tensile bond strengths similar to the controls.

摘要

目的

评估临时材料对树脂改性玻璃离子水门汀与牙齿粘结强度的影响。

材料与方法

将240颗新鲜拔除的牛中切牙磨平以暴露牙釉质和牙本质表面。在用以下材料预处理1周后，将富士Lute和Vitremer水门汀粘结至牙釉质和牙本质表面：（1）一种含丁香酚的水门汀（Propac），（2）一种不含丁香酚的水门汀（Freegenol临时充填材料），（3）一种聚羧酸锌水门汀（HY-Bond临时水门汀硬质型），（4）一种化学固化的临时修复树脂（Plast Seal），以及（5）一种光固化的临时修复树脂（Fermit）。将磨平的牙釉质和牙本质表面作为对照。在将粘结后的标本于37℃水中储存24小时后，以0.5mm/min的十字头速度测量拉伸粘结强度。数据采用单因素方差分析和Dunnett事后检验进行统计学分析（P<0.05）。