Related Experiment Video
Updated: Jun 6, 2025
Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
Published on: December 20, 2024
Comparative evaluation of the effect of three different obturation techniques on push-out bond strength of AH Plus
Sayesh Vemuri1, Eswar Swetha Rachamadugu1, Thalabhakthula Naveena1
1Department of Conservative Dentistry and Endodontics, Sibar Institute of Dental Sciences, Guntur, Andhra Pradesh, India.
Context:
Effect of three different obturation techniques on bond strength of bioceramic sealers.
Aim:
This study aimed to investigate the effect of cold lateral compaction, thermafil, and thermoplasticized obturation techniques on the push-out bond strength of AH Plus Bioceramic and EndoCeramic sealers.
Settings And Design:
The design of the study was an in vitro study.
Materials And Methods:
Forty-two extracted teeth that were single-rooted and had fully developed apices were chosen, decoronated, and biomechanically prepared using rotary nickel-titanium (NiTi) instruments. Samples were divided into two groups of n = 21. Group 1: AH Plus Bioceramic sealer, Group 2: EndoCeramic sealer. Then, based on the obturation technique employed, each group was divided into three subgroups (n = 7): subgroups 1a, 2a: Cold lateral compaction; Subgroups 1b, 2b: Thermafil; and Subgroups 1c, 2c: Thermoplasticized (obtura). Using universal testing machine, slices from the middle third of the sample's root were analyzed to determine the push-out bond strength values.
Results:
Compared to other groups push-out bond strength was noticeably higher for the cold lateral compaction technique with EndoCeramic sealer (Subgroup 2a), followed by the Thermafil technique with EndoCeramic sealer (Subgroup 2b).
Conclusions:
In the present study, compared to heat-based obturation techniques, cold lateral compaction showed better push-out bond strength values for both sealers. EndoCeramic sealer resulted in greater push-out bond strength values than AH Plus Bioceramic sealer.
