[Localization of the mandibular canal: experimental comparison of four types of radiological examination]

This investigation, involves eight dry mandibles, and compares four of radiological examinations to allow the measurement of the depth of the mandibular canal in relation to the alveolar crest. It showed that their (ability to detect the mandibular canal) differed significantly: coronal tomography: 64% retro-alveolar X-ray: 83% orthopantomography: 85% coronal tomodensitometry: 100% The retro-alveolar X-ray appears to have the best cost/information ratio, while the coronal tomography must be left aside.