Inferior alveolar nerve injury assessment after surgical removal of mandibular third molar.

Abstract

To assess the nerve injury (inferior alveolar nerve) after surgical removal of mandibular third molars under local anesthesia. Study Design: Observational study. Setting: Oral & Maxillofacial Surgery Department LUMHS Jamshoro/Hyderabad. Period: From 11th November 2015 to 10th May 2016. Material & Methods: This study consisted of one hundred patients. Inclusion criteria’s were patients with impacted mandibular third molar, patient’s age from 18 to 45years and irrespective of gender. Exclusion criteria were patients younger than 18yrs of age of above 45 years, patients having neurological disorders, medically compromised patients, patients receiving radiotherapy or chemotherapy, patients with known allergy to local anesthesia, patients having pathology due to mandibular third molars, patients radiographicaly root is very near to inferior dental canal. Results: Out of 100 patients incorporated in this research 66 were male (66%) and 34 female (34%). The mean age was 29+3.20 years. Common indication of extraction were recurrent pericoronitis 52(52%) cases followed by deep caries/ pulpitis in 28(28%) cases, orthodontic reason in 11(11%) cases and caries to adjacent tooth in 9(9%) cases. Third molar impaction according to winter’s classification were Mesioangular in 54(54%) cases followed by Horizontal in 26(26%) cases and Vertical in 11(11%). Radiographic showed Narrowing of root in 21% cases and narrowing of inferior dental (ID) canal 20% cases, followed by diversion of ID canal in 16 % cases, deflection of root 14 % cases and darkening of root in 11% cases. After surgical removal of mandibular third molar, the inferior alveolar nerve injury was observed in 6(6%) cases. Conclusion: We conclude that inferior alveolar nerve paresthesia occurs in 6% after surgical removal of mandibular third molars.

Atenção Primária À Saúde: Promoção, Prevenção, Diagnóstico E Implementação De Cuidados

“…Dessa forma, para reduzir ou impedir alguma complicação, é de suma relevância a solicitação de exames pré-operatórios, que permitam avaliar a presença de algum fator de risco, optando por uma técnica mais adequada. Desse modo, a radiografia panorâmica é empregada para permitir a observação da posição e morfologia dentária, proximidade do elemento com o nervo alveolar inferior, e consequentemente, dos possíveis riscos durante a cirurgia (BHANGWAR et al,2020). Porém, pode ser necessário solicitar outros métodos complementares de diagnóstico, como por exemplo, a tomografia computorizada.…”

“…Porém, pode ser necessário solicitar outros métodos complementares de diagnóstico, como por exemplo, a tomografia computorizada. Esta abordagem surge quando são observados sinais radiográficos da intima relação do canal mandibular e o terceiro molar (BHANGWAR et al, 2020).…”

Analysis of the Relation between Inferior Alveolar Nerve Canal and the Roots of Impacted Mandibular Third Molars in the Local Population of Punjab

“…1,2 An IAN may be damaged during the extraction of a mandibular third molar if it is located near the roots which may cause altered sensation, numbness, or pain in the lower lip, chin, and tongue. 3,4 The incidence of IAN-related injuries ranges between 8% and 22%, and as the nerve approaches the third molar, the probability of injury increases. 5 Surgical approach for the removal of wisdom teeth needs to be planned based on the relationship between the roots and the inferior dental canal.…”