Effect of curing methods of resin cements on bond strength and adhesive interface of post.
10.5395/JKACD.2009.34.2.103
- Author:
Mun Hong KIM
1
;
Hae Jung KIM
;
Young Gon CHO
Author Information
1. Department of Conservative Dentistry, Colledge of Dentistry, Chosun University, Korea. ygcho@chosun.ac.kr
- Publication Type:Original Article
- Keywords:
Curing method;
Resin cement;
Bond strength;
Post;
Push-out test;
FE-SEM
- MeSH:
Adhesives;
Bicuspid;
Collodion;
Crowns;
Dental Pulp Cavity;
Dentin;
Resin Cements;
Water
- From:Journal of Korean Academy of Conservative Dentistry
2009;34(2):103-112
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The purpose of this study was to compare the effect of curing methods of adhesive resins and resin cements in the root canal. Crown portions of 32 single-rooted mandibular premolars were removed. Routine endodontic treatment was done, and 9 mm deep post spaces were prepared within root canals. No. 3 FRC Postec posts (Ivoclar-Vivadent AG, Liechtenstein) were cemented in the post spaces by self-(SC) or light-curing (LC) using two dual-cured adhesives (Adper Scotchbond multi-purpose plus and Exite DSC )and resin cements (RelyX ARC and Variolink II). They were assigned to 4 groups (n=8); R-SC, R-LC, V-SC, V-LC group. After stored in distilled water for 24 hours, each root was transversally sectioned with 1.5 mm thick and made three slices. The specimens were subjected to push-out test in a universal testing machine (EZ Test, Shimadzu Co., Japan) with a crosshead speed of 1 mm/min. The data were analyzed with repeated ANOVA and one-way. ANOVA. Also the interface of post-resin cement and resin cement-canal wall of each group was observed under FE-SEM. When fiber posts were cemented into the root canal using total-etch adhesives, the bond strength and adaptation between post and root canal dentin was affected by curing method. Self-cure of adhesives and resin cements showed higher bond strength and closer adaptation than light-cure of them.
