[Intramandibular course and anatomic structure of the inferior alveolar nerve canal]
1Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Medical College, Qingdao University, Qingdao Shandong 266003, China.
Objective:
To study the intramandibular course and anatomic structure of mandibular canal.
Methods:
The intramandibular course of mandibular canal and its dimension were measured in 15 adults mandibles with teeth; the relationship between blood vessel and nerve was observed in 4 fresh samples in which the artery was filled.
Results:
The mandibular canal was close to the lingual side and the inferior margin of the mandible. The blood vessel lay above nerve in the mandibular canal.
Conclusions:
In implant operation performed according to normal anatomy, injury to inferior alveolar nerve may be avoided. Hemorrhage is the earliest manifestation suggesting that continuing drill may damage the inferior alveolar nerve.
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