Regional mucoperiosteal flap with labiobuccal groove mucoperiost-eal flap can cover the bone grafting closely,it gives the alveolar bone a normalcontour and need not second vestibuloplasty.

用瓣、瓣加颊沟?、瓣加舌侧边?为先天性齿槽突裂植的覆盖组织。