CAJ | 학술논문

目的比较严重小下颌畸形患者下颌骨牵张成骨术前、后软组织面型及唇颏部变化,评价下颌骨牵张成骨术治疗下颌发育不全的效果.方法对16例患者行颞颌关节成形术+颞肌筋膜瓣转移修复术,并于术后5 d开始行骨牵引延长,每日2次,每次0.4 mm.颌骨测量每例患者手术前、后头颅侧位定位片软组织面型、唇颏部结构各项指标,用配对t检验比较术前术后变化.结果患者下颌骨牵引成骨术前、后面突角、软组织下面高、面下份凸度、下唇长度、唇间隙、唇颏比、上下唇至审美平面距、颏唇沟深度和颏软组织厚度变化,差异均有统计学意义,其中面突角从治疗前(35.488±6.510)°减小为治疗后(8.295±3.985)°,面下份凸度从治疗前(-40.281±7.558)mm变为治疗后(-14.506±3.359)mm,唇颏比从术前(78.375±12.340)%增加至术后(50.744±5.412)%.结论下颌骨牵引成骨术治疗严重小下颌畸形可使患者面中下部软组织得到适应性改变.
목적 비교엄중소하합기형환자하합골견장성골술전、후연조직면형급진해부변화,평개하합골견장성골술치료하합발육불전적효과.방법 대16례환자행섭합관절성형술+섭기근막판전이수복술,병우술후5 d개시행골견인연장,매일2차,매차0.4 mm.합골측량매례환자수술전、후두로측위정위편연조직면형、진해부결구각항지표,용배대t검험비교술전술후변화.결과 환자하합골견인성골술전、후면돌각、연조직하면고、면하빈철도、하진장도、진간극、진해비、상하진지심미평면거、해진구심도화해연조직후도변화,차이균유통계학의의,기중면돌각종치료전(35.488±6.510)°감소위치료후(8.295±3.985)°,면하빈철도종치료전(-40.281±7.558)mm변위치료후(-14.506±3.359)mm,진해비종술전(78.375±12.340)%증가지술후(50.744±5.412)%.결론 하합골견인성골술치료엄중소하합기형가사환자면중하부연조직득도괄응성개변.
Objective To evaluate the effect of distraction ostengenesis for severe micrognathia by comparing the pre- and post-operative profile and mentolabial relationship. Methods 16 cases underwent temporal-mandibular joint plasty and temporal fasciomuscular flap transfer. The mandibular distraction began at the 5th postoperative day at a rate of 0.8 nun a day, two times a day. Bony and soft tissue cephalometry were performed before and after operation. T-test was used to study the change after distraction ostengenesis. Results There were significant differences in facial convexity, lower facial height, lower lip length, inter-labial distance, the ratio of lip to mental, the distance from lip to esthetic plane, the depth of mentolahial crease and the thickness of mental soft tissue. Conclusions Mandibular distraction osteogenesis can markedly improve the soft tissue profile of the middle and lower face for severe mierognathia.