A comparative Assessment of Push-Out Bond Strength Between MTA Bioputty and Ultrasonically Condensed Gutta-Percha in Radicular Dentin

Abstract

Objectives: This study aimed to assess the push-out bond strength of MTA Bioputty and ultrasonically condensed gutta-percha combined with bioceramic sealer in radicular dentin.

Methods: A total of twenty intact human mandibular premolars, extracted for therapeutic purposes, were gathered. The teeth were decoronated and prepared following standard endodontic protocols, then randomly assigned into two equal groups (n=10). Group I was obturated with MTA Bioputty, while Group II received ultrasonically condensed gutta-percha along with Bio-C sealer. Horizontal sections, 2 mm thick, were taken from the middle third of each root. These specimens underwent push-out bond strength testing using a universal testing machine, and the results were statistically analyzed.

Results: The group treated with MTA Bioputty exhibited higher mean push-out bond strength values in comparison to the group treated with ultrasonically condensed gutta-percha. The difference was statistically significant (P<0.05), indicating that MTA Bioputty has superior adhesion to radicular dentin.

Conclusions: MTA Bioputty showed a significantly greater push-out bond strength than ultrasonically condensed gutta-percha with bioceramic sealer, highlighting its potential as a more dependable obturation material for improving the integrity of root canal fillings.