A Evaluation of fracture resistance of roots obturated with two different sealer and three various obturation techniques
DOI:
https://doi.org/10.32828/mdj.v22i1.1173Keywords:
AH plus, AH plus Bioceramic, Fracture resistance, Single cone technique, soft core technique, Warm vertical compactionAbstract
Aim: The study’s aim was to compare the fracture strength of root obturated with AH Plus and AH Plus Bioceramic sealers utilizing different obturation techniques. Materials and Methods: The palatal roots of fifty-six extracted maxillary-first molars were used in this study. All samples were sectioned to keep the root length constant at 11 mm. The roots were instrumented utilizing ‘EdgeFileX7 rotary files to size 40/0.04. Eight-roots were left unobturated as a control-group, while the others roots were divided into two different groups (n=24) based on the sealant used for obturation; AH plus &AH Plus BC. Each group was then subdivided into three-subgroups (n = 8) based on the obturation approach; single-cone, Warm vertical compaction (WVC) and soft-core. All roots were embedded in acrylic-resin blocks, and fracture force was evaluated with universal-testing equipment utilizing a metal-like spreader tip at a rate of 0.5 mm per minute. The results had undergone statistical evaluation using ANOVA and Tukey-test. Results: The fracture-resistance was significantly affected by the ‘obturation-technique’ and by “sealer/obturation technique” interaction. Obturation with AH Plus BC+WVC had the highest mean fracture-resistance value (351.5000 Newtons) while the control-group demonstrated the lowest mean fracture-resistance value (116.3750 Newtons). Conclusion: Obturation using AH plus BC+WVC was more effective combination providing highest fracture root resistance.
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