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Comparative evaluation sealing ability: Bioceramic versus resin-based sealers by micro-CT analysis
Yelisela Rajiv Kumar1, Aboobacker Sidheeque2, Siddharth Anand3
1Department of Conservative Dentistry and Endodontics, Government General Hospital, DEIC, RBSK, Eluru, India.
Bioinformation
|May 11, 2026
Summary
Bioceramic root canal sealers offer superior sealing compared to resin-based options. This study found bioceramic sealers provide better adaptation and less void volume for predictable endodontic obturation.
Area of Science:
- Endodontics
- Dental Materials Science
Background:
- Achieving a hermetic seal in root canal therapy is crucial for long-term success.
- Limited comparative data exists for contemporary bioceramic and resin-based root canal sealers.
Purpose of the Study:
- To compare the sealing ability of three bioceramic sealers against two resin-based sealers.
- To evaluate sealer adaptation and void volume using micro-computed tomography.
Main Methods:
- Utilized 75 extracted human premolars.
- Obturated canals with single-cone (bioceramic) or warm vertical compaction (resin-based) techniques.
- Assessed three-dimensional void volume and sealer adaptation via micro-computed tomography.
Main Results:
- Bioceramic sealers showed significantly lower total void percentages (0.89–1.24%) than resin-based sealers (1.78–2.15%) (p < 0.001).
- EndoSequence BC Sealer HiFlow exhibited the best canal wall adaptation and minimal void volume.
- Bioceramic sealers demonstrated superior sealing efficacy.
Conclusions:
- Contemporary bioceramic sealers offer enhanced sealing ability and canal wall adaptation.
- Bioceramic sealers support predictable root canal obturation in endodontic therapy.
- Results support the clinical use of bioceramic sealers.