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Trigeminal nerve injuries in relation to the local anaesthesia in mandibular injections

Renton, T., Adey-Viscuso, D., Meechan, J. G. and Yilmaz, Z. 2010. Trigeminal nerve injuries in relation to the local anaesthesia in mandibular injections. British Dental Journal 209 (9) , E15. 10.1038/sj.bdj.2010.978

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Abstract

Objective This study reports the signs and symptoms that are the features of trigeminal nerve injuries caused by local anaesthesia (LA). Methods Thirty-three patients with nerve injury following LA were assessed. All data were analysed using the SPSS statistical programme and Microsoft Excel. Results Lingual nerve injury (LNI; n = 16) and inferior alveolar nerve injury (IANI; n = 17) patients were studied. LNI were more likely to be permanent. Neuropathy was demonstrable in all patients with varying degrees of paraesthesia, dysaesthesia (in the form of burning pain) allodynia and hyperalgesia. All injuries were unilateral. A significantly greater proportion of LNI patients (75%) had received multiple injections, in comparison to IANI patients (41%) (p <0.05). Fifty percent of patients with LNI reported pain on injection. The presenting signs and symptoms of both LNI and IANI included pain. These symptoms of neuropathy were constant in 88% of the IANI group and in 44% of LNI patients. Functional difficulties were different between the LNI and IANI groups, a key difference being the presence of severely altered taste perception in nine patients with LA-induced LNI. Conclusions Chronic pain is often a symptom after local anaesthetic-induced nerve injury. Patients in the study population with lingual nerve injury were significantly more likely to have received multiple injections compared to those with IANI.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Publisher: Nature Publishing Group
ISSN: 0007-0610
Date of Acceptance: 17 June 2009
Last Modified: 08 May 2019 02:20
URI: http://orca-mwe.cf.ac.uk/id/eprint/115483

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