Comparative Micro-CT Analysis of Bioceramic Sealer Activation Techniques in Distal Root Canals of Mandibular Molars
Year: 2025
Type: article
Abstract: Aim: To investigate the effectiveness of various bioceramic sealer activation techniques in reducing void formation during cold obturation of distal canals in mandibular molars.Materials and methods: Sixty mandibular molars with Vertucci's type I distal canals were instrumented using Reciproc Blue R40 files and obturated with iRoot SP sealer.Samples were randomly allocated into six groups (n = 10): No activation (control), lentulo spiral, sonic activation, ultrasonic activation, XP-endo Finisher, and lateral compaction.The obturated samples were scanned by micro-CT to assess the percentage of void volumes at the coronal, middle, and apical thirds of the canal space.Statistical analysis was conducted using a one-way ANOVA test (p < 0.05).Results: Activated sealer groups exhibited significantly lower void percentages compared to the nonactivated control at apical, middle, and total canal sections (p < 0.05).No significant differences were observed among activated groups.Conclusion: Activation techniques significantly enhance the quality of bioceramic sealer obturation by reducing void formation in distal canals of mandibular molars compared to nonactivated methods.Clinical significance: Using activation techniques with bioceramic sealers during cold obturation enhances filling quality and may improve clinical outcomes in endodontic treatment.
Institution: Chiang Mai University
Language: English
Subfield: Oral Surgery
Field: Dentistry
Domain: Health Sciences
Open Access status: diamond
OpenAlex ID: W4413374169