Comparative evaluation of fracture resistance of teeth obturated using three different systems – AH plus/Gutta-percha, Resilon/Realseal self-etch, and Endofill/Gutta-percha: An in vitro study

• Main Authors: G Ratna Velugu, P Karunakar, M S Ranga Reddy
• Format: Article
• Language: English
• Published: Wolters Kluwer Medknow Publications 2016-01-01
• Series: Journal of Oral Research and Review
• Subjects: AH plus; Endofill; fracture resistance; Gutta-percha; Resilon; Resilon/RealSeal self-etch
• Online Access: http://www.jorr.org/article.asp?issn=2249-4987;year=2016;volume=8;issue=1;spage=1;epage=5;aulast=Velugu

Introduction: Endodontically treated teeth are more prone to fracture under masticatory forces. Resin-based dental materials have been proposed as a means to reinforce an endodontically treated tooth through the use of adhesive sealers in the root canal system. Aims: The objective of this study is to evaluate the fracture resistance of endodontically treated teeth obturated using lateral compaction technique with AH plus/Gutta-percha, Resilon/RealSeal self-etch (SE), and Endofill/Gutta-percha. Subjects and Methods: In this study, sixty, single-rooted mandibular premolars were used. The teeth chosen were de-coronated with a diamond disc and the root length was 14 mm for each specimen. All teeth were enlarged up to ISO size 30 master apical file using Ni–Ti rotary Protaper system and crown-down technique. Instrumented teeth were then randomly assigned into four experimental groups (n = 15) as follows: Group 1 - obturated with AH plus/Gutta-percha, Group 2 - obturated with Resilon/RealSeal SE, Group 3 - obturated with Endofill/Gutta-percha, and Group 4 - no obturation was done (control). The specimens were embedded into auto-polymerizing resin, later mounted in the universal testing machine and were subjected to load at a crosshead speed of 1.0 mm/min until the root fractured. Statistical Analysis Used: ANOVA and Duncan post hoc analysis. Results: Results of this in vitro study showed that Resilon/RealSeal SE showed better fracture resistance of all the materials tested. Statistically significant difference between the groups (<0.001) was observed. Conclusions: Resilon/RealSeal SE demonstrated higher fracture resistance values than AH plus/Gutta-percha, followed by Endofill/Gutta-percha