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Design and Use of a Full Flow Sampling System (FFS) for the Quantification of Methane Emissions
Published on: June 12, 2016
Comparability of results from two leakage models
Erick Miranda Souza1, Min-Kai Wu, Hagay Shemesh
1Department of Restorative Dentistry, Araraquara Dental School, São Paulo State University, São Paulo, Brazil.
Summary
This study found that two different leakage models produced similar results when evaluating root canal sealers. The fluid transport and glucose penetration models showed a strong correlation in assessing sealer effectiveness.
Area of Science:
- Endodontics
- Dental Materials Science
- Biomaterials
Background:
- Root canal sealers are crucial for preventing microleakage.
- Accurate assessment of sealer performance is essential for long-term endodontic treatment success.
- Standardized methods for evaluating sealer leakage are needed.
Purpose of the Study:
- To compare the leakage results obtained from two distinct leakage models using the same endodontic specimens.
- To determine the correlation between a fluid transport model and a glucose penetration model in assessing root canal sealer leakage.
Main Methods:
- Eighty canine root canals were prepared and filled using cold gutta-percha and one of four sealers.
- Specimens were tested using a fluid transport model measuring air-bubble movement.
- The same specimens were subsequently tested using a glucose penetration model measuring glucose concentration.
- Both models utilized a headspace pressure of 30 kPa to accelerate leakage assessment.
Main Results:
- A high degree of correlation was observed between the fluid transport and glucose penetration models (Spearman coefficient = 0.65, P = .000001).
- The ranking of the four tested sealers based on leakage was consistent across both models.
- Both models effectively demonstrated differences in leakage among the sealers.
Conclusions:
- The fluid transport model and the glucose penetration model yield comparable results for evaluating root canal sealer leakage.
- These findings suggest that both models can be reliably used to assess sealer performance under the tested conditions.
- The study validates the use of these models for comparative analysis of endodontic sealers.
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