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颜面发育不对称中,面下1/3不对称畸形居多,其中又以两侧下颌不对称偏颌畸形较为常见。不对称的部位可仅限于髁状突或髁颈,亦可包括整个下颌升枝或下颌体,也可累及整个下颌骨。临床表现为患侧下颌髁状突或髁颈过长,下颌角变圆并向下伸展,下颌角及颏部偏向一侧,(牙合)关系紊乱,下颌牙中线偏向健侧,健侧部分和全部牙齿呈反(牙合)或对刃(牙合)。后牙可发生开(牙合)。有些患者由于一侧下颌骨发育异常,可以影响其它面骨及软组织的发育,出现眼平面、颌平面倾斜,两侧上颌骨,甚至颧骨:颧弓不对称,两侧面部软组织丰满度不一致等症状。外科手术是唯一的矫正方法。可
Facial asymmetry, the face under the majority of 1/3 asymmetric deformity, which again on both sides of the lower jaw asymmetric orthognathic malformations are more common. Asymmetric site may be limited to the condylar or condylar neck, but also the entire mandibular ascending or mandibular body, but also the entire mandible. Clinical manifestations of the ipsilateral mandibular condyle or condylar neck is too long, round and downward mandibular angle extension, mandibular angle and chin partial to one side, (occlusion) disorders, mandibular midline biased toward the contralateral part of the contralateral and All teeth were anti (occlusion) or on the edge (occlusion). Posterior teeth can occur open (occlusion). Some patients due to one side of the mandibular dysplasia can affect the development of other facial bones and soft tissues, the emergence of the eye plane, tilt the jaw plane, both sides of the maxilla, and even the zygomatic arch: asymmetry zygomatic arch, both sides of the facial soft tissue fullness inconsistent symptom. Surgery is the only method of correction. can