The results showed that the thickness of soft-tissue chin and soft-tissue facial angle increased.

• 双期治疗结束后,患者软组织颏部变厚,软组织面角增大,下唇突点-H线距离、H角、颏唇沟深度和骨骼侧面凸度减小,SNB增大,ANB减小,以上结果均有显著性差异;