无托槽隐形矫治技术治疗高角型开牙合畸形  

Treatment of open bite malocclusion with high angle using invisalign

作　　者：张晟 王春阳[2] 谢永建[2] 麦理想[2] Zhang Sheng;Wang Chunyang;Xie Yongjian;Mai Lixiang(Department of Orthodontics,Guangdong Provincial Stomatological Hospital,Affiliated Stomatological Hospital of Southern Medical University,Guangzhou 510280,China;Guanghua School of Stomatology,Hospital of Stomatology,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Stomatology,Guangzhou 510055,China)

机构地区：[1]南方医科大学口腔医院正畸科,广州510280 [2]中山大学光华口腔医学院·附属口腔医院,广东省口腔医学重点实验室,广州510055

出　　处：《中华口腔医学研究杂志（电子版）》2018年第5期305-311,共7页Chinese Journal of Stomatological Research(Electronic Edition)

摘　　要：目的探讨无托槽隐形矫治技术治疗高角型开牙合畸形的临床应用并评估其疗效。方法选取高角型开牙合畸形患者30例,其中男12例、女18例,年龄18~30岁,平均24.5岁,应用无托槽隐形矫治技术进行正畸治疗,均采取拔牙矫治,治疗前后拍摄头颅侧位片,测量头影测量指标并使用SPSS 17.0统计学软件进行统计学分析。结果 30例患者矫治后前牙覆牙合恢复正常,面型得到明显改善。SNA角减小1.6°(P<0.001),SNB角减小0.5°(P=0.038),ANB角减小1.1°(P<0.001),GoGnSN角减小1.7°(P<0.001),U1-NA减小3.7 mm(P<0.001),L1-NB减小1.8 mm(P=0.001),U1-L1角增加16.6°(P<0.001),U1-SN角减小8.2°(P<0.001),OPP-SN角减小5.3°(P=0.012),FH-PP角减小0.9°(P=0.041),差异均有统计学意义;U6-PP减小0.6 mm(P=0.091),L1-MP角减小0.6°(P=0.058),差异无统计学意义。结论无托槽隐形矫治技术治疗高角型开牙合畸形能有效进行垂直向控制,使下颌平面逆时针旋转,获得良好疗效。Objective To investigate the clinical application of invisalign in the treatment of open bite malocclusion with high angle and evaluate its effect.Methods Thirty open bite patients with high angle were enrolled in the study using invisalign with extraction treatment,including 12 male and 18 female.The age ranged from 18 to 30 years,with an average age of 24.5 years.Cephalograms of pretreatment and posttreatment were measured.The data were analyzed by SPSS 17.0.Results The overbite of all the patients were back to normal and their lateral profile improved significantly after treatment.SNA decreased by 1.6°(P<0.001),SNB decreased by 0.5°(P=0.038),ANB decreased by 1.1°(P<0.001),GoGn-SN decreased by 1.7°(P<0.001),U1-NA decreased by 3.7 mm(P<0.001),L1-NB decreased by 1.8 mm(P=0.001),U1-L1 increased by 16.6°(P<0.001),U1-SN decreased by 8.2°(P<0.001),OPP-SN decreased by 5.3°(P=0.012),FH-PP decreased by 0.9°(P=0.041),the differences were statistically significant.U6-PP decreased by 0.6 mm(P=0.091),L1-MP decreased by 0.6°(P=0.058),without statistically significant differences.Conclusions Invisalign is an effective appliance for treating open bite malocclusion with high angle for it can control the vertical height effectively,and rotate the mandible counterclockwise.

关 键 词：开牙合 错牙合 测颅法 无托槽隐形矫治技术 高角型 

分 类 号：R783.5[医药卫生—口腔医学]