下颌孔位于下颌支内面中央，由前向后有颊、舌、下牙槽神经通过，由此孔通入下颌体内的下颌管。
研究目的：探讨下颌前磨牙生理性根尖孔的形态特征。
Objective: To investigate the morphology of physiological foramen of mandibular premolars.
结果：单一钛小夹板沿中线固定下颌角区、体部颏孔区及正中联合区骨折骨断端均产生较大的弯曲及扭转移位。
Results: a large bending and torsion displacement was founded in Angle, body and symphyseal fracture fixed by a single titanium mini-plate along the middle line.
从茎乳孔发出向后侧面生长到下颌后静脉并穿过腮腺的生长方式有助于局限性神经鞘瘤与其他腮腺肿瘤鉴别。
Growth from the stylomastoid foramen running posterolaterally to the retromandibular vein coursing through the parotid gland can help distinguish a facial nerve schwannoma from other parotid tumors.
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