Strain generated in the TMJ with class II malocclusions, treated with extraction of premolars and orthodontics: analysis with the finite element method
Introduction: premolar extraction is an alternative for the treatment of class II malocclusion. A change in biomechanics can generate alterations in the Temporomandibular Joint (TMJ), which produces greater dental wear and the appearance of joint dysfunctions. The objective was to assess the effort...
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| Format: | Article |
| Language: | English |
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Universidad de Antioquia
2021-06-01
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| Series: | Revista Facultad de Odontología Universidad de Antioquia |
| Subjects: | |
| Online Access: | https://revistas.udea.edu.co/index.php/odont/article/view/343749/20805556 |
| _version_ | 1827143982585479168 |
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| author | Sandra Patricia Castaño-Duque Alejandra Hoyos-Daza Angela María Vargas-Romero Luis Eduardo Luna-Ángel |
| author_facet | Sandra Patricia Castaño-Duque Alejandra Hoyos-Daza Angela María Vargas-Romero Luis Eduardo Luna-Ángel |
| author_sort | Sandra Patricia Castaño-Duque |
| collection | DOAJ |
| description | Introduction: premolar extraction is an alternative for the treatment of class II malocclusion. A change in biomechanics can generate alterations in the Temporomandibular Joint (TMJ), which produces greater dental wear and the appearance of joint dysfunctions. The objective was to assess the effort concentration in the TMJ by means of finite element analysis in class II malocclusions treated with premolar extraction and orthodontics. Method: two 3D simulation models each with bone structures of the 2 jaws, complete dentition and disc in the TMJ. One corresponds to the patient without recurrence (WR) treated with extraction of first premolars and orthodontics, where class I dental stability is maintained. The other model with recurrence (R) treated with extraction of first premolars and orthodontics, increased overjet and overbite and canine class II; the load was applied to the mandibular ramus. Results: loads of 900N triplicated on all structures compared to 300N in both models. However, there were considerable differences between the left and right glenoid cavities in the WR model, at 300N of 19.9 MPa and 900N at 59.3 MPa. Most tensions of the disc occur in the lateral part. Conclusions: due to the asymmetry in the TMJ structures, the stresses and stress concentration differ between the right and left sides in the two models. |
| first_indexed | 2024-04-11T09:48:48Z |
| format | Article |
| id | doaj.art-92c9609ccced47d0b0a3fc080933372c |
| institution | Directory Open Access Journal |
| issn | 0121-246X 2145-7670 |
| language | English |
| last_indexed | 2025-03-20T19:51:28Z |
| publishDate | 2021-06-01 |
| publisher | Universidad de Antioquia |
| record_format | Article |
| series | Revista Facultad de Odontología Universidad de Antioquia |
| spelling | doaj.art-92c9609ccced47d0b0a3fc080933372c2024-08-20T20:08:41ZengUniversidad de AntioquiaRevista Facultad de Odontología Universidad de Antioquia0121-246X2145-76702021-06-01331698210.17533/udea.rfo.v33n1a6Strain generated in the TMJ with class II malocclusions, treated with extraction of premolars and orthodontics: analysis with the finite element methodSandra Patricia Castaño-Duque0https://orcid.org/0000-0003-2687-7065Alejandra Hoyos-Daza1https://orcid.org/0000-0003-4888-2148Angela María Vargas-Romero2https://orcid.org/0000-0002-2972-5019Luis Eduardo Luna-Ángel3https://orcid.org/0000-0003-2204-3506Universidad El BosqueUniversidad El BosqueUniversidad El BosqueUniversidad El Bosque Introduction: premolar extraction is an alternative for the treatment of class II malocclusion. A change in biomechanics can generate alterations in the Temporomandibular Joint (TMJ), which produces greater dental wear and the appearance of joint dysfunctions. The objective was to assess the effort concentration in the TMJ by means of finite element analysis in class II malocclusions treated with premolar extraction and orthodontics. Method: two 3D simulation models each with bone structures of the 2 jaws, complete dentition and disc in the TMJ. One corresponds to the patient without recurrence (WR) treated with extraction of first premolars and orthodontics, where class I dental stability is maintained. The other model with recurrence (R) treated with extraction of first premolars and orthodontics, increased overjet and overbite and canine class II; the load was applied to the mandibular ramus. Results: loads of 900N triplicated on all structures compared to 300N in both models. However, there were considerable differences between the left and right glenoid cavities in the WR model, at 300N of 19.9 MPa and 900N at 59.3 MPa. Most tensions of the disc occur in the lateral part. Conclusions: due to the asymmetry in the TMJ structures, the stresses and stress concentration differ between the right and left sides in the two models.https://revistas.udea.edu.co/index.php/odont/article/view/343749/20805556dental extractionmalocclusionclass ii of angletemporomandibular jointdiscpremolarfinite alement analysisexodoncia dentalmaloclusiónclase ii de anglearticulación temporomandibularanálisis de elementos finitos |
| spellingShingle | Sandra Patricia Castaño-Duque Alejandra Hoyos-Daza Angela María Vargas-Romero Luis Eduardo Luna-Ángel Strain generated in the TMJ with class II malocclusions, treated with extraction of premolars and orthodontics: analysis with the finite element method Revista Facultad de Odontología Universidad de Antioquia dental extraction malocclusion class ii of angle temporomandibular joint disc premolar finite alement analysis exodoncia dental maloclusión clase ii de angle articulación temporomandibular análisis de elementos finitos |
| title | Strain generated in the TMJ with class II malocclusions, treated with extraction of premolars and orthodontics: analysis with the finite element method |
| title_full | Strain generated in the TMJ with class II malocclusions, treated with extraction of premolars and orthodontics: analysis with the finite element method |
| title_fullStr | Strain generated in the TMJ with class II malocclusions, treated with extraction of premolars and orthodontics: analysis with the finite element method |
| title_full_unstemmed | Strain generated in the TMJ with class II malocclusions, treated with extraction of premolars and orthodontics: analysis with the finite element method |
| title_short | Strain generated in the TMJ with class II malocclusions, treated with extraction of premolars and orthodontics: analysis with the finite element method |
| title_sort | strain generated in the tmj with class ii malocclusions treated with extraction of premolars and orthodontics analysis with the finite element method |
| topic | dental extraction malocclusion class ii of angle temporomandibular joint disc premolar finite alement analysis exodoncia dental maloclusión clase ii de angle articulación temporomandibular análisis de elementos finitos |
| url | https://revistas.udea.edu.co/index.php/odont/article/view/343749/20805556 |
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