مقارنة قدرة مواد حشو الأقنية الراتنجية ال (ResilonTM)‎ و التقليدية على الارتباط بالعاج الجذري

الملخص EN

The filling material bonding to the wall of the root canal is so important with regard to decreasing the apical microscopic leakage.

Background & Objective: The aim of this study is to assess the ability of new resin root canal filling materiales (Resilon) in bonding to the canal internal wall, bond strength, and to determined the nature of bond failure, and compare this with two kinds of traditional root canal filling materials.

Methods & Materials: The study was performed on (60 extracted human single canal teeth) there canals were instrumented by Pro-Taper system and randomly divided into 3 groups (20 teeth each) and then filled as follow, the first group by (Real seal/Resilon) the second, by (Gutta Percha/ZoE), and the third one by (Gutta percha/Apexit).

By using milling machine the sections were performed on all teeth (2 mm form apex).

Then all sections were subjected to bush out bond strength test, then all sections were split in buccolingual direction and dentin surfaces were examined under stereomicroscope, and statistical methods were performed by Anova test at (P<0,05).

Results: The results showed noticeable superiority for the first group (5.20 MP) in bush out bond strength test than second (1.03 MP, P= 0.013) and third one (1.29 MP, P= 0.01).

Inspection of the dentin surfaces revealed the bond failure to be mainly mixed in (Resilon) group, and adhesive to dentin in the other groups.

Conclusion: Resilon system is able to achieve real bonding to dentine of the root canal, where as traditional obturation systems can not