Expansion technique is able to form extra palatine mucoperiosteal tissue,which could be a new restoration approach to tissue defect of cleft palate and nearby soft tissue defect.

• 腭粘骨膜扩张术可产生“额外”的粘骨膜,开拓了腭裂组织缺损及邻近组织缺损修复的新途径。