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A case series of trigeminal nerve injuries caused by periapical lesions of mandibular teeth

Devine, M, Yilmaz, Zehra, Hirani, M and Renton, T 2017. A case series of trigeminal nerve injuries caused by periapical lesions of mandibular teeth. British Dental Journal 222 (6) , pp. 447-455. 10.1038/sj.bdj.2017.268

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Aims Periapical lesions have been implicated in mandibular trigeminal sensory neuropathy. This study aimed to report on a case series of consecutive patients presenting with mandibular division trigeminal nerve injuries (TNI) caused by periapical lesions. Common presenting characteristics and possible strategies for management were also investigated.Materials and methods A retrospective study of 22 patients with TNI caused by periapical lesions. Data were extracted from patient records and analysed using Microsoft Excel and SPSS. Factors associated with TNI resolution were assessed using Student's t-Tests and one-way Analysis of Variance (ANOVA), where P <0.05 indicated statistical significance.Results Twenty-one patients had inferior alveolar nerve injuries (IANI) and one had a lingual nerve injury (LNI). The most commonly affected teeth were the first molars (11 patients; 50%). TNI symptoms included numbness, pain and/or paraesthesia. IANI resolved completely among five patients within a mean time of 4.7 months (range 1.5-12 months). Patients who showed complete resolution had the affected teeth extracted or primary endodontic treatment with antibiotics.Conclusions Patients with TNI caused by periapical lesions can suffer significantly from combined numbness, pain and paraesthesia. Resolution of these injuries may be maximised upon early diagnosis and treatment of the periapical lesion by tooth extraction or primary endodontic treatment.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Publisher: Nature Publishing Group
ISSN: 0007-0610
Date of Acceptance: 3 January 2017
Last Modified: 15 Jul 2019 10:00

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