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Pairod Singhatanadgid. Effect of curved root canal on torsional shear stress of NiTi rotary files. (). King Mongkut's University of Technology North Bangkok. Central Library. : , 2024.
Effect of curved root canal on torsional shear stress of NiTi rotary files
Name: Punyavud Tomeboon
Organization :
Chulalongkorn University. Faculty of Engineering
Email :
punyavud.t@gmail.com
Name: Sirawut Hiran-us
Organization :
Chulalongkorn University. Faculty of Engineering
Name: Sarita Morakul
Organization :
Chulalongkorn University. Faculty of Engineering
Name: Pairod Singhatanadgid
Organization :
Chulalongkorn University. Faculty of Engineering
keyword:
Endodontic rotary files
LCSH:
Finite element method
Abstract:
Rotating nickel-titanium (NiTi) dental files are widely used in endodontic treatments to shape and clean root canals. These instruments possess exceptional flexibility and cutting efficiency, which allows them to conform to the shape of the canal and return to their original straight configuration. Failures of rotary files often result from torsional load-induced fractures and flexural fatigue. This study aimed to investigate the torsional resistance of NiTi rotary files when operating in root canals with varying degrees of curvature. In such cases, the files experience a combined load of torsional and flexural forces due to the applied torque and bending caused by the curved root canal, respectively. Finite element analysis was employed to determine the torsional shear stress experienced by the rotary files subjected to torsional and flexural loads from the curved root canal. Solid models of dental files and artificial root canals were created using computer-aided design software and converted to finite element models. The finite element model of the files was then preloaded with the bending displacement (Setup I) and inserted into the root canal (Setup II) before applying the torsional load. Shear stress distribution and file deformation were thoroughly analyzed. The results of the finite element confirmed the previous experimental studies. For Setup II, maximum shear stress on the cross-section near the fixed support, i.e. 1 mm above the fixed support, decreased as the angle of curvature was increased. The difference in the methods used to create curved configuration of the files in both setups is the cause of conflicting conclusions in the previous experimental studies. The experiment in Setup II is closer simulate the real clinical situation than Setup I. Therefore, the curved root canal might have a positive effect on the torsional resistance of rotary files
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Created:
2024
Modified:
2024-12-17
Issued:
2024-12-17
บทความ/Article
application/pdf
BibliograpyCitation :
In Thai Society of Mechanical Engineers (TSME) and Chiang Mai University. The 13th TSME International Conference on Mechanical Engineering (TSME-ICoME 2023) (pp.547-556). Chiang Mai : Chiang Mai University, 2023
eng
©copyrights King Mongkut's University of Technology North Bangkok
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0.019704 วินาที
Punyavud Tomeboon
| Title | Contributor | Type |
|---|---|---|
| Effect of curved root canal on torsional shear stress of NiTi rotary files
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Punyavud Tomeboon;Sirawut Hiran-us;Sarita Morakul;Pairod Singhatanadgid | บทความ/Article |
Sirawut Hiran-us
| Title | Contributor | Type |
|---|---|---|
| Development of bending fatigue testing system for endodontic files
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Teeramate Kessaro;Sirawut Hiran-us;Pairod Singhatanadgid;Sarita Morakul | บทความ/Article | |
| Effect of curved root canal on torsional shear stress of NiTi rotary files
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Punyavud Tomeboon;Sirawut Hiran-us;Sarita Morakul;Pairod Singhatanadgid | บทความ/Article |
Sarita Morakul
| Title | Contributor | Type |
|---|---|---|
| Development of bending fatigue testing system for endodontic files
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Teeramate Kessaro;Sirawut Hiran-us;Pairod Singhatanadgid;Sarita Morakul | บทความ/Article | |
| Effect of curved root canal on torsional shear stress of NiTi rotary files
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Punyavud Tomeboon;Sirawut Hiran-us;Sarita Morakul;Pairod Singhatanadgid | บทความ/Article |
Pairod Singhatanadgid
| Title | Contributor | Type |
|---|---|---|
| Development of bending fatigue testing system for endodontic files
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Teeramate Kessaro;Sirawut Hiran-us;Pairod Singhatanadgid;Sarita Morakul | บทความ/Article | |
| Effect of curved root canal on torsional shear stress of NiTi rotary files
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Punyavud Tomeboon;Sirawut Hiran-us;Sarita Morakul;Pairod Singhatanadgid | บทความ/Article | |
| Stress in a tooth modeled with and without food using finite element method
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Viradet Taranajetsada;Pairod Singhatanadgid;Terawat Tosiriwatanapong | บทความ/Article | |
| Stress evaluation of NiTi rotary files operating in a root canal with different curvature locations using finite element method
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Kittipong Sudjinda;Chatdanai Chiaranai;Pairod Singhatanadgid | บทความ/Article |