Effect of desensitizer on shear bond strength of adhesive system
10.3321/j.issn:1002-0098.2008.05.014
- VernacularTitle:脱敏剂对牙本质粘接剂剪切粘接强度的影响
- Author:
Ming ZHENG
1
;
Hui CHENG
;
Wen-Duo CHEN
;
Xiu-Rong LI
;
Zhi-Gang HU
;
Shou-Zhi MA
Author Information
1. 福建医科大学口腔医学院
- Keywords:
Dentin-bonding agents;
Microscopy,electron,scanning;
Shear strength;
Desensitizer
- From:
Chinese Journal of Stomatology
2008;43(5):306-307
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evalume the effect of desensitizer on shear bond strength of adhesive system.Methods Twenty specimens were made and divided randomly into an experiment group and a control group.In the experiment group,the dentin bonding surface was applied with Green OrTM and in the control,the dentin bonding surface was untreated.The IPS-Empress specimens were bonded to the dentin bonding specimens using Variolink Ⅱ adhesive system. The shear bond strength of all testing samples was determined with Instron testing machine.The surfaces of the drawing sections were observed using the scanning electron microscope(SEM).Results The shear bond strength of the experimental group and the control group was(5.53±0.96)MPa and(7.32±1.34)MPa respectively and there was statistically significant difference between two groups(P:0.003).In the experimental group,adhesive failure was the most prevalent type of failure,while in the control group,cohesive failure Was the most prevalent type.Conclusions The application of Green OrTM on the dentin bonding surface decreased the shear bond strength between dentin and IPS-Empress specimens when using Variolink Ⅱ adhesive system.
