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The effect of root canal instrumentation technique on sealing ability of soft core obturation system | ||
| Journal of baghdad college of dentistry | ||
| Article 1, Volume 23, Issue 2, 2011, Pages 22-25 | ||
| Author | ||
| Mervet M.Al-Bakry | ||
| Abstract | ||
| ABSTRACTBackground: The aim of this study is to compare the apical sealing ability of three different instrumentationtechniques using dye penetration.Materials and methods: Thirty extracted human single straight canals were collected and these teeth were randomlydivided into three groups.There were 10 teeth in each group. The teeth were instrumented as follows: group A with hand P.T, group B withRotary P.T. and group C with step –back technique then obturation with soft core was done. Endofill root canalsealer was employed as the common sealant.Results: The least apical microleakage was seen in hand P.T while the highest apical microleakagewas seen in stepbacktechnique.There was no statistically significant difference between group A and group B (P> 0.05) while there was statisticallysignificant difference between group A and group C which is (P=o.o12) and between group B and group C which isP= 0.019.Conclusion: The highest apical microleakage was seen in step-back technique while least apical microleakagewasseen in hand ProTaper technique followed by rotary ProTaper technique with no statistical significant differencebetween hand and rotary ProTaper.Keywords: Apical seal, soft core, hand ProTaper, Rotary ProTaper, step-back technique. (J Bagh Coll Dentistry2011;23(2):22-25). | ||
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