Effect of different torques in cyclic fatigue resistance of K3 rotary instruments
Aim: To assess the effect of different torque values on cyclic fatigue resistance of K3 rotary nickeltitanium (NiTi) files. Methods: Eighty K3 files, size 25 mm, taper 0.04 were divided in 4 groups according to different torques (0.5, 1, 2 and 6 Ncm) and were submitted to a cyclic fatigue test. This...
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Universidade Estadual de Campinas,
2015-07-01T00:00:00Z.
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| LEADER | 00000 am a22000003u 4500 | ||
|---|---|---|---|
| 001 | doaj_661a9a2cb25b4b3fb9fbc5f4e79f4e7a | ||
| 042 | |a dc | ||
| 100 | 1 | 0 | |a Dirce Akemi Sacaguti Kawakami |e author |
| 700 | 1 | 0 | |a George Táccio de Miranda Candeiro |e author |
| 700 | 1 | 0 | |a Eduardo Akisue |e author |
| 700 | 1 | 0 | |a Celso Luiz Caldeira |e author |
| 700 | 1 | 0 | |a Giulio Gavini |e author |
| 245 | 0 | 0 | |a Effect of different torques in cyclic fatigue resistance of K3 rotary instruments |
| 260 | |b Universidade Estadual de Campinas, |c 2015-07-01T00:00:00Z. | ||
| 500 | |a 10.20396/bjos.v14i2.8640825 | ||
| 500 | |a 1677-3225 | ||
| 520 | |a Aim: To assess the effect of different torque values on cyclic fatigue resistance of K3 rotary nickeltitanium (NiTi) files. Methods: Eighty K3 files, size 25 mm, taper 0.04 were divided in 4 groups according to different torques (0.5, 1, 2 and 6 Ncm) and were submitted to a cyclic fatigue test. This test was performed with a device that allowed the file to rotate inside a stainless steel artificial curved canal, simulating the pecking motion. Files rotated until fracture occurred and time to failure was recorded in seconds with a stopwatch. Data were analyzed by ANOVA and Tukey tests (p<0.05). Results: All groups were compared and only the group of 6 N.cm showed statistically significant difference (p=0.0002). Conclusions: For #25.04 K3 files, the evaluated torques up to 2 N.cm had no influence on cyclic fatigue resistance. Using 6 N.cm torque value resulted in lower resistance to cyclic fatigue. | ||
| 546 | |a EN | ||
| 690 | |a Dental instruments | ||
| 690 | |a Endodontics | ||
| 690 | |a Fatigue | ||
| 690 | |a Root canal preparation | ||
| 690 | |a Torque | ||
| 690 | |a Dentistry | ||
| 690 | |a RK1-715 | ||
| 655 | 7 | |a article |2 local | |
| 786 | 0 | |n Brazilian Journal of Oral Sciences, Vol 14, Iss 2 (2015) | |
| 787 | 0 | |n https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640825 | |
| 787 | 0 | |n https://doaj.org/toc/1677-3225 | |
| 856 | 4 | 1 | |u https://doaj.org/article/661a9a2cb25b4b3fb9fbc5f4e79f4e7a |z Connect to this object online. |