A finite element study on the mechanical behavior of reciprocating endodontic files
Aim: To evaluate the mechanical behavior of reciprocating endodontic files, comparing nickeltitanium (NiTi) and stainless steel 316L (St.St. 316L) as manufacturing material for such instruments. Methods: A three-dimensional finite element model was designed for this study. The simplified instrument...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Campinas
2015-03-01
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| Series: | Brazilian Journal of Oral Sciences |
| Subjects: | |
| Online Access: | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640846 |
| _version_ | 1818601376762036224 |
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| author | Mohamed I. El-Anwar Ayman O. Mandorah Salah A. Yousief Tarek A. Soliman Tarek M. Abd El-Wahab |
| author_facet | Mohamed I. El-Anwar Ayman O. Mandorah Salah A. Yousief Tarek A. Soliman Tarek M. Abd El-Wahab |
| author_sort | Mohamed I. El-Anwar |
| collection | DOAJ |
| description | Aim: To evaluate the mechanical behavior of reciprocating endodontic files, comparing nickeltitanium (NiTi) and stainless steel 316L (St.St. 316L) as manufacturing material for such instruments. Methods: A three-dimensional finite element model was designed for this study. The simplified instrument model geometry was created on commercial CAD/CAM software. Real strain stress curves of St.St. 316L and NiTi were used in the analysis. Non-linear static analysis was performed to simulate the instrument inside root canal at an angle of 45° in the apical portion, and subjected to torsion of 0.3 N.cm. Results: Non-linear NiTi material showed super elasticity and high functionality in such applications. Very high levels of stress appeared in the file at 3 mm from the tip close to yield point. Conclusions: St. St. 316L is not suitable for manufacturing reciprocating instruments. Modeling of the instrument with equivalent circular cross-sectional area did not affect results quality. Reciprocating instruments have short lifespan, thus manufacturers recommend using one file per tooth. Reciprocating instruments are recommended for less experienced dentist. |
| first_indexed | 2024-12-16T12:50:24Z |
| format | Article |
| id | doaj.art-9785dc396b224d769598a3a56035f9f6 |
| institution | Directory Open Access Journal |
| issn | 1677-3225 |
| language | English |
| last_indexed | 2024-12-16T12:50:24Z |
| publishDate | 2015-03-01 |
| publisher | Universidade Estadual de Campinas |
| record_format | Article |
| series | Brazilian Journal of Oral Sciences |
| spelling | doaj.art-9785dc396b224d769598a3a56035f9f62022-12-21T22:31:10ZengUniversidade Estadual de CampinasBrazilian Journal of Oral Sciences1677-32252015-03-0114110.20396/bjos.v14i1.8640846A finite element study on the mechanical behavior of reciprocating endodontic filesMohamed I. El-Anwar0Ayman O. Mandorah1Salah A. Yousief2Tarek A. Soliman3Tarek M. Abd El-Wahab4National Research CentreKing Faisal Hospital, Dental Department, MakkahAL-Farabi Dental CollegeUniversity of MansouraUniversity of MansouraAim: To evaluate the mechanical behavior of reciprocating endodontic files, comparing nickeltitanium (NiTi) and stainless steel 316L (St.St. 316L) as manufacturing material for such instruments. Methods: A three-dimensional finite element model was designed for this study. The simplified instrument model geometry was created on commercial CAD/CAM software. Real strain stress curves of St.St. 316L and NiTi were used in the analysis. Non-linear static analysis was performed to simulate the instrument inside root canal at an angle of 45° in the apical portion, and subjected to torsion of 0.3 N.cm. Results: Non-linear NiTi material showed super elasticity and high functionality in such applications. Very high levels of stress appeared in the file at 3 mm from the tip close to yield point. Conclusions: St. St. 316L is not suitable for manufacturing reciprocating instruments. Modeling of the instrument with equivalent circular cross-sectional area did not affect results quality. Reciprocating instruments have short lifespan, thus manufacturers recommend using one file per tooth. Reciprocating instruments are recommended for less experienced dentist.https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640846EndodonticsStainless steelNickel. Titanium |
| spellingShingle | Mohamed I. El-Anwar Ayman O. Mandorah Salah A. Yousief Tarek A. Soliman Tarek M. Abd El-Wahab A finite element study on the mechanical behavior of reciprocating endodontic files Brazilian Journal of Oral Sciences Endodontics Stainless steel Nickel. Titanium |
| title | A finite element study on the mechanical behavior of reciprocating endodontic files |
| title_full | A finite element study on the mechanical behavior of reciprocating endodontic files |
| title_fullStr | A finite element study on the mechanical behavior of reciprocating endodontic files |
| title_full_unstemmed | A finite element study on the mechanical behavior of reciprocating endodontic files |
| title_short | A finite element study on the mechanical behavior of reciprocating endodontic files |
| title_sort | finite element study on the mechanical behavior of reciprocating endodontic files |
| topic | Endodontics Stainless steel Nickel. Titanium |
| url | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640846 |
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