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- Title
Cutting efficiency of conventional and heat‐treated nickel–titanium rotary or reciprocating glide path instruments.
- Authors
Pedullà, E.; Leanza, G.; La Rosa, G. R. M.; Gueli, A. M.; Pasquale, S.; Plotino, G.; Rapisarda, E.
- Abstract
Aim: To compare the cutting efficiency of several glide path files: HyFlex EDM Glidepath File (HEGF), One G (OG), R‐Pilot (RP) and WaveOne Gold Glider (WOGG) at different cutting inclinations. Methodology: Cutting efficiency of 120 new HEGF, OG, RP and WOGG was tested at 90°, 70° and 45° inclination in relation to the sample. Depending on manufacturer instructions, instruments were tested in continuous rotation or reciprocating motion against standardized gypsum samples for 120 s using a customized apparatus. Cutting efficiency was determined by measuring the weight loss and the length of the sample cut. Data were analysed using two‐way analysis of variance and Tukey t‐test (P < 0.05). Results: RP and WOGG had greater cutting ability than HEGF and OG in all tested angles. RP tested at 45° had significantly greater cutting efficiency than when tested at 90° and 70° (P < 0.05). OG was not significantly different in terms of cutting ability at 90°, 70° and 45° (P > 0.05). HEGF and WOGG had significantly greater cutting efficiency at 45° and 70° compared to 90° (P < 0.05), with no significant difference between 45° and 70° (P > 0.05). RP had the greatest cutting ability at all tested angles. Conclusions: Reciprocating glide path instruments had greater cutting efficiency compared to those in continuous rotation. An inclined insertion (45° or 70°) increased the cutting ability of glide path files except for One G conventional NiTi files.
- Subjects
DENTAL equipment; DENTAL drilling; HEAT treatment; TWO-way analysis of variance; TUKEY'S test; T-test (Statistics)
- Publication
International Endodontic Journal, 2020, Vol 53, Issue 3, p376
- ISSN
0143-2885
- Publication type
Article
- DOI
10.1111/iej.13224