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[Effect of Carisolv on endodontic microleakage]
Li-na Shao1, Fu-liang Zhan, Li-hong Qiu
1Department of Endodontics, China Medical University, Shenyang, China. shaolina8238@yahoo.com.cn
Summary
Carisolv effectively reduces endodontic microleakage by removing the smear layer, leading to better root canal sealing. A novel fluid transport model using sodium nitrite accurately measures this effect.
Area of Science:
- Endodontics
- Dental Materials Science
- Biomaterials
Background:
- Endodontic microleakage is a significant factor in treatment failure.
- Effective smear layer removal is crucial for achieving a good root canal seal.
- Accurate methods for evaluating microleakage are essential for material development.
Purpose of the Study:
- To assess the impact of Carisolv on endodontic microleakage.
- To validate a fluid transport model utilizing sodium nitrite as a tracer for microleakage assessment.
Main Methods:
- Seventy extracted teeth were divided into five groups, treated with different chemical agents including Carisolv, hydrogen peroxide with tosylchloramide sodium, and varying concentrations of sodium hypochlorite.
- Post spaces were prepared, and samples were subjected to a fluid transport model.
- Sodium nitrite concentration was measured over 60 days to quantify microleakage; data analyzed using ANOVA.
Main Results:
- No sodium nitrite was detected in the negative control group (5% sodium hypochlorite).
- The positive control group (distilled water) showed significantly higher sodium nitrite concentrations throughout the study.
- The Carisolv group exhibited significantly lower sodium nitrite concentrations compared to hydrogen peroxide/tosylchloramide sodium and 2.5% sodium hypochlorite groups.
Conclusions:
- Carisolv demonstrates efficacy in removing the smear layer, thereby reducing endodontic microleakage and improving root canal sealing.
- The sodium nitrite fluid transport model provides an objective, sensitive, and precise method for evaluating endodontic microleakage.
