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Furcation perforation repair comparing gray and white MTA: a dye extraction study
Hatim A Hamad1, Patricia A Tordik, Scott B McClanahan
1Naval Postgraduate Dental School, Bethesda, Maryland.
Journal of Endodontics
|March 24, 2006
Summary
Gray and white ProRoot MTA demonstrated similar sealing abilities for furcation perforations in mandibular molars. Orthograde leakage was significantly higher than retrograde leakage, indicating a directional challenge to the repair material.
Area of Science:
- Endodontics
- Dental Materials Science
Background:
- Furcation perforations are critical complications in endodontic therapy.
- Effective sealing of these perforations is essential to prevent bacterial ingress and ensure treatment success.
- Mineral Trioxide Aggregate (MTA) is a widely used material for perforation repair.
Purpose of the Study:
- To compare the sealing efficacy of gray and white ProRoot MTA in repairing furcation perforations.
- To assess leakage from both orthograde and retrograde directions.
Main Methods:
- Sixty-four mandibular molars with induced furcation perforations were used.
- Teeth were randomly assigned to repair with either gray or white ProRoot MTA.
- Dye leakage was evaluated using a dye extraction method and spectrophotometry.
- Leakage was tested under both orthograde and retrograde challenge conditions.
Main Results:
- No statistically significant difference in leakage was observed between gray and white ProRoot MTA.
- Significantly greater dye leakage occurred when tested from the orthograde direction compared to the retrograde direction (p < 0.001).
Conclusions:
- Both gray and white ProRoot MTA exhibit comparable sealing capabilities for furcation perforations.
- The direction of leakage challenge significantly impacts the observed sealing performance, with orthograde challenges yielding higher leakage.