按摩有助于使颏下松弛的皮肤柔韧起来。
结论经颏下进路气管内插管是一种安全有效的插管方式，在复杂面部骨折手术治疗中可以替代气管切开气管内插管。
Conclusion Submental endotracheal intubation is a secure and effective technique of airway management, an alternative to tracheotomy in treatment of patients with complex facial fractures.
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.
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