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KMID : 0362320100350050335
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Journal of Korean Academy of Operative Dentistry
2010 Volume.35 No. 5 p.335 ~ p.343
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Effect of moisture on sealing ability of root canal filling with different types of sealer through the glucose penetration model
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Jang Jin-Ah
Kim Hee-Lyang
Her Mi-Ja
Lee Kwang-Won
Yu Mi-Kyung
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Abstract
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Objectives: To compared the effect of different levels of moisture of root canal on the sealing ability after filling with four different types of sealer.
Materials and Methods: Single-rooted teeth (n = 90) instrumented to and apical size of 0.06 / 45 were randomly assigned to 12 experimental groups (n = 7 per group), positive/negative control groups (n = 3 per group). The teeth of the experimental groups (a. DRY; b. PAPER POINT DRY; c. WET) were obturated with sealer (Group 1-3: Sealapex; Group 4-6: AH plus; Group 7-9: Tubuli-seal; Group 10-12: EndoRez) and warm vertical compaction method. After 7 days in , 100% humidity, the coronal-to-apical microleakage was evaluated quantitatively using a glucose leakage model. The leaked glucose concentration was measured with spectrophotometer at 1, 3, 7, 14, 21, and 30 days. Data were recorded ad mmol/L and statistically analysed with the two-way ANOVA and Duncan test (p = 0.05).
Results: Throughout the experimental period Tubuli-seal/WET (Group 9) showed the highest mean cumulative glucose penetration (178.75 mmol/L), whereas AH plus/DRY (Group 4) had the least (20.78 mmol/L).
Conclusions: The results of this study demonstrated that the moisture condition of root canals at the time of obturation and the type of sealer that was used had a significant effect on leakage and sealing ability. Thus drying procedure according to sealer types is a critical step and should not be missed in endodontic treatment.
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KEYWORD
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AH plus, EndoRez, Moisture, Sealapex, Sealing ability, Tubuli-seal
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