Clinical management of moderately and severely curved canals with nickel-titanium rotary instrument
- VernacularTitle:镍钛器械对中重度弯曲根管成形能力的临床研究
- Author:
Qiong XU
;
Junqi LING
;
Haijing GU
- Publication Type:Journal Article
- Keywords:
Nickel;
Titanium;
Curved root canals;
Root canal preparation
- From:
Journal of Practical Stomatology
2001;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the shaping ability of nickel-titanium (NiTi) rotary instrument Hero 642 combined with SX of ProTaper in moderately and severely curved root canals.Methods:42 teeth with moderately and severely curved canals in 42 patients were prepared by Hero 642 and SX of ProTaper using crown-down technique and obturated with lateral condensation method. The efficiency of the preparation and obturation were analyzed by radiographs before and after treatment. Results:After preparation by the rotary instrument the original curvature and alignment of the canals were kept. No transportation, apical blockage, ledge or perforation was found in all cases. In one case,the file was broken during operation.After treatment light pain was complained in 4 cases and the pain alleviated and disappeared spontaneously. Conclusion:The NiTi rotary instrumentation technique with Hero 642 and ProTaper can be used to prepare curved root canals effectively and quickly.
