冲洗水温对树脂-牙本质微剪切粘结强度的影响。

The effect of washing water temperature on resin-dentin micro-shear bond strength.

作者信息

Malekipour Mohammad Reza, Shirani Farzaneh, Ebrahimi Mehrnoush

机构信息

Department of Operative Dentistry, Faculty of Dentistry, Islamic Azad University, Isfahan (Khorasgan) Branch, Isfahan, Iran.

Dental Materials Research Center and Department of Operative Dentistry, Faculty of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran.

出版信息

Dent Res J (Isfahan). 2016 Mar-Apr;13(2):174-80. doi: 10.4103/1735-3327.178208.

DOI:10.4103/1735-3327.178208

PMID:27076833

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4810916/

Abstract

BACKGROUND

The purpose of this study was to evaluate the effect of washing water temperature on the micro-shear bond strength (μSBS) of composite resin to dentin using a two-step etch-and-rinse system and a two-step self-etching system.

MATERIALS AND METHODS

In this in vitro study, the intact dentins of buccal and lingual surfaces of healthy third molars were exposed. Dentin surfaces were rinsed with different temperatures of distilled water (20 s) before applying Single Bond (SB) or Clearfil SE Bond(SE). After applying the adhesive, composite cylinders (0.8 mm diameter and 1 mm length) were bonded to the teeth surfaces. After storing the specimens in 37°C distilled water for 48 h and thermocycling, μSBS test was done. Data were analyzed using analysis of variance, post hoc Tukey tests, paired samples t-test, and Fisher exact test (α = 0.05).

RESULTS

Temperature and interaction of temperature and type of bonding agent affected the bond strength. The bond strength of SB groups was significantly higher at 50°C washing than 5°C (P = 0.003) and 22°C (P = 0.019), but no significant difference was observed between SE groups. The bond strength of SE was significantly higher at 22°C than that of SB (P = 0.031), whereas the bond strength of SB was significantly higher at 50°C than that of SE (P = 0.007).

CONCLUSION

The use of high-temperature washing water is an appropriate method to enhance bond strength in etch-and-rinse systems.

摘要

背景

本研究旨在评估使用两步酸蚀冲洗系统和两步自酸蚀系统时，冲洗水温对复合树脂与牙本质之间微拉伸粘结强度（μSBS）的影响。

材料与方法

在这项体外研究中，暴露健康第三磨牙颊面和舌面的完整牙本质。在应用单键粘结剂（SB）或Clearfil SE粘结剂（SE）之前，用不同温度的蒸馏水冲洗牙本质表面（20秒）。涂抹粘结剂后，将复合树脂圆柱体（直径0.8毫米，长度1毫米）粘结到牙齿表面。将标本在37°C蒸馏水中储存48小时并进行热循环后，进行μSBS测试。使用方差分析、事后Tukey检验、配对样本t检验和Fisher精确检验分析数据（α = 0.05）。

结果

温度以及温度与粘结剂类型的相互作用会影响粘结强度。SB组在50°C冲洗时的粘结强度显著高于5°C（P = 0.003）和22°C（P = 0.019），但SE组之间未观察到显著差异。SE在22°C时的粘结强度显著高于SB（P = 0.031），而SB在50°C时的粘结强度显著高于SE（P = 0.007）。