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|Bone: Mandibular canal|
|The permanent teeth, viewed from the right. The external layer of bone has been partly removed and the maxillary sinus has been opened.|
|Gray's||subject #44 173|
Carries branches of inferior alveolar nerve and artery. Is continuous with the mental foramen (opents onto front of mandible) and mandibular foramen (on medial aspect of ramus).
The mandibular canal is fairly close to the apices of the second molar in 50% of the radiographs. In 40%, canal is away from the root apices, and in only 10% of the radiographs the root apices appeared to penetrate the canal. In root canal therapy of the second molar one should be cautious of over extending the reamer or the root canal filling materials because there is a possible risk of inferior alveolar nerve injury.
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