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KMID : 1004520110270010099
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Journal of Dental Rehabilitation and Applied Science
2011 Volume.27 No. 1 p.99 ~ p.107
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A Comparison of the Effectiveness of Stainless-Steel Hand Instrument and Rotary NiTi Retreatment Instrument to Remove Gutta-Percha in Curved Root Canals
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Nam Dong-Goo
Kim Min-Jeong
Cho Hye-Jin
Lee Kwang-Won
Yu Mi-Kyung
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Abstract
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The main objective of nonsurgical retreatment is to disinfect the root canal space for periradicular healing. Thus, efficient removal of the filling material from the root canal system is essential to ensure a favorable outcome. Traditionally, the removal of root canal filling material was performed by stainless steel hand instrument and this procedure is time and effort-consuming. Recently, rotary NiTi retreatment instruments are developed to effective removal of root canal filling material. The aim of this study was to evaluate the effectiveness of stainless-steel hand instrument and rotary NiTi retreatment instrument when removing gutta-percha in curved root canals. For the remaining materials, there were no significant differences between groups. But the rotary NiTi system proved to be faster than hand instruments in removing root filling materials.
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KEYWORD
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stainless steel hand instrument, root canal retreatment, Mtwo retreatment, ProTaper Universal Retreatment
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