Cyclic Fatigue of Dental NiTi Instruments after Plasma Nitriding

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F21%3A00556951" target="_blank" >RIV/60162694:G43__/21:00556951 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26210/21:PU140867 RIV/00216208:11110/21:10428790

Result on the web

<a href="https://www.mdpi.com/1996-1944/14/9/2155/htm" target="_blank" >https://www.mdpi.com/1996-1944/14/9/2155/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma14092155" target="_blank" >10.3390/ma14092155</a>

Result language

angličtina

Original language name

Cyclic Fatigue of Dental NiTi Instruments after Plasma Nitriding

Original language description

This study investigated the possibility of nitride NiTi instruments using low-temperature plasma nitriding technology in a standard industrial device. Changes in the properties and fatigue life of used NiTi instruments before and after low-temperature nitriding application were investigated and compared. Nontreated and two series of plasma-nitrided NiTi instruments, designed by Mtwo company with tip sizes of 10/.04 taper, 15/.05 taper, and 20/.06 taper, were experimentally tested in this study. All these instruments were used and discarded from clinical use. The instruments were tested in an artificial canal made of stainless steel with an inner diameter of 1.5 mm, a 60 degrees angle of curvature, and a radius of curvature of 3 mm. A low-temperature plasma nitriding process was used for the surface treatment of dental files using two different processes: 550 degrees C for 20 h, and 470 degrees C for 4 h. The results proved that it is possible to nitride dental instruments made of NiTi with a low-temperature plasma nitriding process. Promising results were achieved in trial testing by NiTi instruments nitrided at a higher temperature. Plasma-nitrided files were found to have, in some cases, significantly higher values than nontreated files in terms of fatigue life. The results showed that the nitriding process offers promising possibilities for suitably modified surface properties and quality of surface layer of NiTi instruments. Within the limitations of the present study, the cyclic fatigue life of plasma-nitrided NiTi dental files can be increased using this surface technology.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10403 - Physical chemistry

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

MATERIALS

ISSN

1996-1944

e-ISSN

1996-1944

Volume of the periodical

14

Issue of the periodical within the volume

9

Country of publishing house

CH - SWITZERLAND

Number of pages

11

Pages from-to

2155

UT code for WoS article

000650546800001

EID of the result in the Scopus database

2-s2.0-85105213486