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Transection of inferior alveolar nerve in the rat – neuroanatomical study and experimental model [Přerušení nervus alveolaris inferior u potkana - neuroanatomická studie a experimentální model]

I. Němec, V. Smrčka, J. Mazánek, J. Pokorný

. 2019 ; 61 (1-4) : 48-53, 70. (2-4/2018)

Jazyk angličtina Země Česko

Perzistentní odkaz   https://www.medvik.cz/link/bmc20004241

Objective. Experimental lesions in the inferior alveolar nerve (IAN) are used for the study of peripheral and central alterations. The objective of our study was to contribute to a more precise description of the approach to the IAN and creating a lesion. Material and methods. Twenty-six males of Wistar laboratory rats were used for the study. The animals were divided into three groups: control group (6 rats), experimental group (12 rats - a part of the bone above the mandibular canal was removed under general anaesthesia using extraoral approach, after exposing a part of the IAN, the nerve was excised in a length of 3 mm), and a sham group (8 rats - the nerve was only dissected but not transected). Persisting denervation was verified using surgical revision and histological and immunohistochemical analysis after the observation period (4 weeks). Results. No evidence of re-innervation after 4 weeks. We found no statistically significant differences in mean weight gains between individual groups during the observation period. Conclusion. The described technique used in the study is one of the possible ways to create a nerve lesion at the site of the main trunk of the nerve. At the same time, the study provides a more precise description of the anatomical situation and approach to the IAN in the mandibular canal.

Přerušení nervus alveolaris inferior u potkana - neuroanatomická studie a experimentální model

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