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Effects of the remaining calcium hydroxide on apical leakage
Authors :
- Mettachit Nawachinda, D.D.S., Cert. In Endodontics, M.S. (Endodontics)
- Peraya Puapichartdumrong , D.D.S., Diploma of Clinical Sciences (Endodontology)
Abstract :
Objective The purpose of this study was to study effects of Ca (OH)2 dressings on apical leakage at 30 and 60 days after the root canal was filled.
Materials and methods An in vitro investigation was performed using a dye leakage and clearing method. Extracted human teeth with single and straight root canal (n=60) were instrumented to #40 of master apical file and flared to #60. Having been randomly divided into two groups for Ca(OH)2-and non-dressing purposes, the teeth were subsequently selected for the period after obturation in association with 30 or 60 days. After that, the specimens were placed into indian ink, demineralization, and clearing, respectively. Linear dye penetration was examined using a stereomicroscope, and analyzed by unpaired t-test.
Results No significant differences in all parameters were indicated between 30-day-post-obturation groups and their controls (p>0.01) and between 60-day-post-obturation groups and their controls (p>0.01).
Conclusion The results of this study indicate that Ca(OH)2 medication does not effect the apical leakage at 30 and 60 days after obturation.
(CU Dent J 2001;24:13-8)
Keywords :
apical leakage; calcium hydroxide
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