青少年患者应用隐形矫治器MA治疗早期下颌后缩的临床研究  

Clinical Study of the Invisible Aligner (Mandibular Advancement,MA) Appliance in the Treatment of Teenagers with Mandibular Retrusion

作　　者：孟耀[1] 刘曼 MKNG Yao;LIU Man(Dept.of Orthodontics,Shenzhen Children's Hospital,Shenzhen,518000,China)

机构地区：[1]深圳市儿童医院口腔正畸科,深圳51800 [2]深圳市职业技术学院医学技术及护理学院,深圳518055

出　　处：《黑龙江医学》2020年第1期47-50,共4页Heilongjiang Medical Journal

摘　　要：目的探讨青少年患者应用隐形矫治器MA (Mandibular Advancement)前导下颌的临床效果。方法选择2017-2018年就诊于深圳市儿童医院口腔正畸科的安氏Ⅱ1类错颌畸形青少年患者20例。应用MA和双阻板矫治器(Twin block,TB)各10例。通过治疗前后头影测量分析,探讨MA的临床治疗效果;对比分析MA和TB治疗前后各项数值变化情况,探讨MA同传统功能矫治器的矫治效能的差异。结果经过MA治疗后,患者SNB、ANB、Y轴角、MP-FH、U1、上下切牙夹角、上下唇同E线的关系都得到明显改善,差异有统计学意义(P<0.05);同Twin block比较显示,MA在Y轴角、FH-MP控制方面好于TB,但是U1内收效果比TB差(P<0.05),其余项目无明显差异。结论隐形矫治器前导下颌矫治器MA对下颌后缩的青少年患者可以达到前伸下颌、改善侧貌的目的。Objective To explore the clinical effect and application value of the Invisalign(Mandibular Advancement,MA)appliance in treatment of teenagers with mandibular retrusion. Methods 20 teenagers with Angle Ⅱ1 mandibular retrusion were selected and divided into 2 groups. One group(10 patients)was treated with MA, the other group(10 patients)was treated with Twin block. Pre-and posttreatment lateral cephalograms were taken. Cephalometric measurements were analyzed statistically. Intragroup and intergroup changes of the 2 groups were evaluated. Results After MA treatment, significant difference of SNB, ANB, Y axis,MP-FH, angle U1, angle U1-L1 upper lip-E line(UL-EP), lower lip-E line(UL-EP)were discovered(P<0.05). After treatment,the MA group had lower Y axis, MP-FH, U1 angle than the Twin block group(P<0.05). Conclusion The Invisalign MA appliance in treatment of children with mandibular retrusion can effectively promote mandibular growth and improve the patient’s profile.

关 键 词：骨性Ⅱ类错颌 前导下颌 无托槽隐形矫治 双板矫治器 

分 类 号：R783.5[医药卫生—口腔医学]