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- Title
Cutting efficiency of two heat-treated files in rotation and reciprocation motions.
- Authors
Kataia, Engy M.; Nagy, Mohamed Mokhtar; Kataia, Mohamed M.; Khalil, Hala Fayek
- Abstract
Background: This study aimed at assessing the effect of different kinematics as well as different instrument designs on efficiency of cutting of two heat-treated nickel–titanium systems. Forty resin canals with 30°-angle of curvature and a length of 16 mm were utilized in this research. They were divided into four groups depending on the instrument and the operating kinematic, group I; Azure rotary system in rotation motion, group II; Azure rotary system in Reciprocation motion, group III; Fanta AF One rotary system in rotation motion and group IV; Fanta AF One rotary system in reciprocation motion. Blocks were labeled and then weighed pre- and post-preparation with delta weight (Δ wt = wt pre − wt post) and data were documented for statistics evaluation. Results: Resin canals prepared using Fanta AF One rotary system showed significantly higher weight loss than Azure rotary system in both rotation and reciprocation (P < 0.001). Insignificant difference was reported for rotation and reciprocation movements in both file systems. Conclusion: The instrument's cross section revealed a more significant impact on cutting efficiency than the motion used.
- Subjects
HEAT treatment of metals; ENDODONTICS; ROTARY cutting; SURFACE preparation; HARDNESS testing
- Publication
Bulletin of the National Research Centre, 2021, Vol 45, Issue 1, p1
- ISSN
2522-8307
- Publication type
Article
- DOI
10.1186/s42269-021-00579-x