The journal of contemporary dental practice · 2025
Comparative Micro-CT Analysis of Bioceramic Sealer Activation Techniques in Distal Root Canals of Mandibular Molars.
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Dewi Anat, Soonthornpusit Apichaya, Jittarat Wariya
Аннотация
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. How to cite this article: Dewi A, Soonthornpusit A, Jittarat W. Comparative Micro-CT Analysis of Bioceramic Sealer Activation Techniques in Distal Root Canals of Mandibular Molars. J Contemp Dent Pract 2025;26(6):533-539.
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. How to cite this article: Dewi A, Soonthornpusit A, Jittarat W. Comparative Micro-CT Analysis of Bioceramic Sealer Activation Techniques in Distal Root Canals of Mandibular Molars. J Contemp Dent Pract 2025;26(6):533-539.