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Differences in setting time of calcium silicate-based sealers under different test conditions
Jina Koo1, Sang Won Kwak1, Hyeon-Cheol Kim1
1Department of Conservative Dentistry, Pusan National University School of Dentistry, Dental and Life Science Institute, Dental Research Institute, Yangsan, South Korea.
Journal of Dental Sciences
|July 5, 2023
Summary
Calcium silicate-based bioceramic (CSBC) sealers and epoxy resin sealers have different setting times. Gypsum molds, simulating root canal moisture, reveal shorter setting times for CSBC sealers compared to stainless-steel molds.
Area of Science:
- Dental Materials Science
- Biomaterials Engineering
- Endodontics
Background:
- Calcium silicate-based bioceramic (CSBC) sealers are a recent advancement in endodontics.
- These novel sealers require moisture for proper setting.
- Understanding their setting characteristics is crucial for clinical application.
Purpose of the Study:
- To compare the setting times of epoxy resin-based sealers and CSBC sealers.
- To evaluate the influence of different test conditions (mold type) on sealer setting times.
Main Methods:
- Four CSBC sealers and one epoxy resin sealer were tested.
- Sealers were placed in both stainless-steel and gypsum molds.
- Setting time was determined using a Gilmore needle under controlled humidity (95%) and temperature (37°C).
Main Results:
- Setting times were significantly shorter in gypsum molds compared to stainless-steel molds for all sealers.
- EndoSeal TCS, One-Fil, and CeraSeal exhibited the shortest setting times in gypsum molds.
- AH Plus (epoxy resin sealer) demonstrated the longest overall setting time.
Conclusions:
- Moisture is essential for CSBC sealer setting; its absence significantly delays the process.
- Gypsum molds provide a more accurate representation of root canal conditions for evaluating sealer setting times.
- Clinical application of CSBC sealers should consider the moist environment of root canals for optimal performance.
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