| Abstrakt: |
Background: Narrow and curved root canals present greatest difficulty to create a continuous tapering canal geometry while maintaining the original root canal configuration. The development of new Nickel − titanium (NiTi) instruments prove promising owing to their metallurgical and heat treatment techniques, with TruNatomy being one of the newest having higher flexibility and advanced design. Aim: To compare the shaping ability of TruNatomy with other NiTi files during endodontic treatment. Methodology: A comprehensive electronic search in PubMed, EBSCOhost, Cochrane Library, and Google Scholar was carried out to screen relevant articles based on Title, Abstract, and Full text published in the English language between August 1, 2020 and November 31, 2022. Comparative in vitro studies comparing the results of TruNatomy and other NiTi files for shaping ability were eligible for this review; while studies comparing parameters other than shaping ability, studies not done on human extracted teeth, letter to editors, review articles, short communications, and conference proceeding were excluded. Results: A preliminary search yielded a total of 187 studies through search strategy used in PubMed, EBSCOhost, Cochrane Library, and Google Scholar. After screening, 14 articles were included for qualitative synthesis while the remaining articles were excluded for being duplicates and not providing relevant data. Majority of the studies reported TruNatomy to be better than other NiTi files by providing less canal displacement, less removal of canal dentin, less cases of canal transportation, and more centralization ability. Conclusion: TruNatomy provides a better shaping ability than other NiTi files when used in simple curved, moderately curved and severely curved canals by maintaining the original anatomy of the canal, removing less radicular dentin, maintaining the central axis, and having less canal transportation due to its shape and flexibility. Further studies using larger sample size with severely curved root canals are recommended. [ABSTRACT FROM AUTHOR] |
