Objective To summarize the complications for MST treatment of retractive epilepsy and to improve our treatment.

目总结多处软切术（MST）治疗癫痫手术并发症，并提出治疗措施。

Objective The aim of this study was to assess the effects of varying retractive force directions on the displacement of and stress distributions in palate.

摘要目探讨后牵引矫方向与上颌腭部位移和应分布关系。