不同清洁方案对复合树脂与被止血剂污染的牙本质粘结强度的影响：一项体外研究

Effect of Different Cleansing Protocols on Bond Strength of Composite Resin to Dentin Contaminated with Hemostatic Agent: An In Vitro Study.

作者信息

Saati Keivan, Tabatabaei Seyedeh Farnaz, Etemadian Delaram, Sadaghiani Morad

机构信息

Department of Restorative and Cosmetic Dentistry, Islamic Azad University, Tehran, Iran.

Department of Restorative and Cosmetic Dentistry, Semnan University of Medical Sciences, Semnan, Iran.

出版信息

Front Dent. 2020 Dec 5;17:31. doi: 10.18502/fid.v17i31.4861. eCollection 2020.

DOI:10.18502/fid.v17i31.4861

PMID:36042802

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9375110/

Abstract

OBJECTIVES

Inadequate removal of the hemostatic agent can adversely affect the bond strength of restorations to the tooth structure. This study aimed to assess the effect of different cleansing protocols on the shear bond strength (SBS) of an etch-and-rinse adhesive to dentin contaminated with aluminum chloride hemostatic agent.

MATERIALS AND METHODS

In this experimental study, the mid-coronal dentin of 96 premolars was exposed. They were contaminated with a hemostatic agent (ViscoStat Clear) and then randomly divided into 7 groups (n=12). One group served as the control. The groups underwent various cleaning methods as follows: water spray, aluminum oxide particles (27μ diameter), a slurry of pumice with water, GC dentin conditioner (GCDC), sodium hypochlorite 2% (SHC), and chlorhexidine 2% (CHX). Composite cylinders were then fabricated and bonded to the surfaces using Scotchbond Multi-Purpose etch-and-rinse bonding agent. After thermocycling (10,000 cycles), the SBS was measured using a universal testing machine. Data were analyzed using one-way analysis of variance (ANOVA) and Tukey HSD (honestly significant difference) test, and the significance level was set at 0.05.

RESULTS

The SBS of the groups was significantly different (P=0.036). The SBS was the highest in the CHX and SHC groups, and the lowest SBS was related to the control group and GCDC groups. The difference between other groups was not significant (P=0.996).

CONCLUSION

CHX and SHC yielded the highest bond strength among the tested modalities for cleansing the ViscoStat Clear from the tooth surface.

摘要

目的

止血剂清除不充分会对修复体与牙体结构的粘结强度产生不利影响。本研究旨在评估不同清洁方案对酸蚀冲洗粘结剂与被氯化铝止血剂污染的牙本质之间剪切粘结强度（SBS）的影响。

材料与方法

在本实验研究中，暴露了96颗前磨牙的牙冠中部牙本质。它们被一种止血剂（ViscoStat Clear）污染，然后随机分为7组（n = 12）。一组作为对照组。各实验组采用以下不同的清洁方法：喷水、直径27μm的氧化铝颗粒、浮石与水的糊剂、GC牙本质调节剂（GCDC）、2%次氯酸钠（SHC）和2%氯己定（CHX）。然后制作复合树脂圆柱体，并用Scotchbond多功能酸蚀冲洗粘结剂粘结到表面。热循环（10000次循环）后，使用万能试验机测量SBS。数据采用单因素方差分析（ANOVA）和Tukey HSD（真实显著差异）检验进行分析，显著性水平设定为0.05。