ArticleEuropean journal of dentistry2026
Effect of NiTi Cutting Efficiency on Generating Intra-Canal Splitting Forces During Root Canal Treatment: An In Vitro Study.
Article in European journal of dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: This study aims to measure the effect of the lateral cutting efficiency of reciprocating and rotary NiTi files on the produced intracanal splitting forces (ICSF) during root canal preparation. Materials and Methods: Forty-eight mandibular anterior bovine teeth with straight roots were used to create 48 simulated premolar roots and 26 enamel-dentin disks. The required sample size was determined through power analysis conducted with G Results: The splitting forces test was significantly higher in the PTG group (S1) file when compared to other PTG and WOG files. The force generated in WOG strokes presented an ascending manner as the file went deeper apically. The cutting efficiency of PTG (F2) was significantly higher than WOG's primary file. However, no significant correlation between splitting force and file cutting efficiency was detected. Conclusion: WOG single reciprocating file produced significantly lower splitting force values with significantly less aggressive dentin cutting compared to PTG multi-sequence rotary files. File design, kinematics, depth of strokes, and the maximum diameter of each file at the coronal third in relation to canal diameter may be influencing factors in generating splitting forces.
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