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The comparative leakage behavior of reverse filling materials
Journal of Endodontics
|June 1, 1989
Summary
Thermoplasticized gutta-percha with sealer cement and dental amalgam with varnish provide comparable apical seals. However, thermoplasticized gutta-percha without sealer cement resulted in significantly greater leakage in root canal treatments.
Area of Science:
- Endodontics
- Dental Materials Science
Background:
- Achieving a predictable apical seal is crucial for endodontic treatment success.
- Various obturation techniques and materials are employed to seal the root canal system after endodontic procedures.
Purpose of the Study:
- To compare the in vitro apical seal of thermoplasticized gutta-percha with and without sealer cement.
- To evaluate the apical seal achieved by dental amalgam with a varnish liner after apicoectomy and Class I preparation.
Main Methods:
- Single root teeth underwent apicoectomy and Class I preparation.
- Teeth were obturated using thermoplasticized gutta-percha (with and without sealer) or dental amalgam with varnish.
- Teeth were immersed in methylene blue dye for 10 days.
- Longitudinal sectioning and leakage assessment were performed.
Main Results:
- No significant difference in leakage was observed between thermoplasticized gutta-percha with sealer cement and dental amalgam with varnish.
- Thermoplasticized gutta-percha used without sealer cement demonstrated significantly greater leakage compared to the other groups.
Conclusions:
- Sealer cement is essential when using thermoplasticized gutta-percha for apical sealing.
- Dental amalgam with varnish provides an apical seal comparable to gutta-percha when used with a sealer.
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