结论颏颈角切口颈阔肌成形术操作安全，对双下颏畸形的改善效果确切。
Conclusion Use of Platysmaplasty by cervico-mental Angle incision is a safe and effective method for double-chin deformity.
目的：提高双侧下颌角肥大伴有小颏畸形的手术治疗效果。
The small chin deformity was a commen developmental deformity of the jaw.
结论安氏三类错合伴开合患者，行双颌正颌手术后，其开合距离与颏部形态变化有相关性。
ConclusionMesioclusion with open bite patients after orthognathic surgery, their open-bite distance has correlation with chin form.
结论安氏三类错合伴开合患者，行双颌正颌手术后，其开合距离与颏部形态变化有相关性。
ConclusionMesioclusion with open bite patients after orthognathic surgery, their open-bite distance has correlation with chin form.
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