The other 98 teeth (88 cases) ambushing under bone or mucosa, based on clinical and imageology examination, 90 were uproot by a suitable operative route and eight teeth were remained.

• 埋伏阻生的多生牙98颗(88例)依据临床检查和影像学检查，选择合适的手术进路顺利拔除90颗，未手术治疗8颗。