[Dysesthesia and anesthesia of the mandibular nerve following dental treatment].

An inquiry to all practising dentists of Schleswig-Holstein and Cologne was performed to estimate the incidence of long time lingual nerve damage. 50 cases were reported and analyzed according to findings and causes. Further on the Cologne inquiry took into consideration 43 injuries of the n. alveolaris inferior. The results of the study allow a statement on the necessity to inform the patient before the operation.