The purpose of this study was to identify and classify specific anatomic variations of the mandibular canal for which we have suggested the term "bifid mandibular canals." A total of 6,000 panoramic radiographs were studied, and those that contained these canals were identified. A classification of bifid mandibular canals was developed from this material. In addition, as the different variations of these bifid mandibular canals may present a number of problems in clinical practice, some solutions to these problems are presented. In our sample, there were 57 bifid mandibular canals, an incidence of 0.95%. These results suggest that the presence of bifid mandibular canals is not a rare finding. If panoramic equipment is not available, the lateral jaw view may be taken to study the mandible for the anesthetic, surgical, and prosthetic problems.
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