Chin augmentation was performed in 12 cases,genioplasty in 6 cases and a combination of both the two procedure in 3 cases.

• 单纯采用Medpore假体植入隆颏术12例,颏部截骨前移6例,颏部截骨前移加二期Medpore假体植入隆颏3例。 术后小颏畸形明显改善,形态良好。