[High-resolution computerized tomography in the diagnosis of impacted third molars and its implications in terms of irradiation exposure].

Inferior alveolar nerve lesions are amongst the most frequent and most severe complications in the surgical removal of third molars. To avoid nerve lesions, careful preoperative radiographic assessment of the anatomical relationships is mandatory. Whenever there is a close topographical relationship between the third molar roots and the mandibular canal, we perform high-resolution CT scans. The additional information obtained as against conventional x-ray films is demonstrated in case descriptions. The results and possible implications in terms of irradiation exposure are discussed.