The effect of different final intracanal irrigants on the bond strength of silicone-based sealer to root canal walls
10.11958/20171059
- VernacularTitle:不同根管终末冲洗方案对硅氧烷类根管封闭剂与牙本质粘接性能的影响
- Author:
Xin ZHANG
1
;
Zhi-Wei LI
;
Miao MIAO
;
Ying LIU
Author Information
1. 天津医科大学口腔医院 300070
- Keywords:
root canal irrigants;
final irrigation;
root canal sealer;
bond strength;
QMiX;
CTR;
GuttaFlow
- From:
Tianjin Medical Journal
2018;46(3):251-254
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the bond strength of GuttaFlow sealers to root canal walls after final rinse with two novel fi nal irrigation regimens, QMiX and 17%EDTA+0.2%Cetrimide (CTR). Methods Thirty single-canal teeth were prepared chemomechanically using 5.25% sodium hypochlorite (NaOCl) as root canal irrigants. The teeth were then randomly distributed into three groups(n=10)according to the final irrigation protocol:QMiX group,17% EDTA followed by CTR group and control group(normal saline,NS).After the filling with GuttaFlow using a lentulo spiral,the roots were transversally sectioned to obtain 2 mm thick dentinal slices.Then a push-out bond strength test was carried out,and failure mode was determined at×24 magnification.Results The push-out bond strength was significantly higher in QMiX group than that of EDTA+CTR group and NS group(P<0.05),and no significant difference was observed between EDTA+CTR and NS groups(P>0.05).The failure patterns were mainly mixed.Conclusion The QMiX,as the final irrigant,can improve the bond strength of silicone-based sealer GuttaFlow.
