Prevalence and associated factors of inferior alveolar and lingual nerves injuries after lower third molars extractions: Retrospective study
Among the treatments performed in oral surgery, the third molars extraction is the most frequent and may cause nerve injuries. Objective: To determine the prevalence and associated factors of inferior alveolar and lingual nerves injuries after inferior third molars extractions. Materials and methods...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2019 |
| País: | Ecuador |
| Institución: | Universidad Central del Ecuador |
| Repositorio: | Revista Odontología |
| Idioma: | español |
| OAI Identifier: | oai:revistadigital.uce.edu.ec:article/1805 |
| Acceso en línea: | https://revistadigital.uce.edu.ec/index.php/odontologia/article/view/1805 |
| Access Level: | acceso abierto |
| Palabra clave: | Cirugía bucal Nervio mandibular Nervio lingual Tercer molar Oral surgery Mandibular nerve Lingual nerve Molar third |
| Sumario: | Among the treatments performed in oral surgery, the third molars extraction is the most frequent and may cause nerve injuries. Objective: To determine the prevalence and associated factors of inferior alveolar and lingual nerves injuries after inferior third molars extractions. Materials and methods: the sample was composed by of 609 records attended during the years 2011-2016 in the Carlos Andrade Marín Hospital in the city of Quito, Ecuador. The following variables were assessed: sex, age, position and depth of the third molar (Pell & Gregory), inclination (Winter) and radiographic relationship with the mandibular canal (Rood & Shehab). Data obtained were processed througth the Chi-square test with a significance level of 5%. Results: of all patients attended, 2.46% presented nerves injuries, corresponding to 1.64% and 0.82% to the inferior alveolar and lingual nerves respectively. The inferior alveolar nerve injury is associated with the female sex (p = 0.032) and with the class III (p = 0.010), while the lingual nerve lesions were associated with class I (p = 0.004) and type A (p = 0.001). Radiographically, the alveolar nerve injury is associated in 46.67% with the interruption of the mandibular canal line (p = 0.010). Conclusion: The prevalence of injuries in the inferior alveolar and lingual nerves after lower third molar extractions in Ecuadorian patients is low; preoperative care is important to avoid postoperative complications. |
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