摘要
目的:评价应用改良肌激动器联合Damon自锁托槽矫治技术治疗下颌后缩性骨性Ⅱ类青少年错(牙合)畸形的临床效果。方法:收集2019年-2021年以下颌后缩为主的生长发育高峰期前骨性Ⅱ类错(牙合)畸形患者20例,I期应用改良头帽-肌激动器功能矫治器,Ⅱ期应用Damon自锁托槽矫治技术,并对患者治疗前后的软硬组织及气道的相关变化进行分析。结果:治疗前后的CBCT测量显示,硬组织及牙(牙合):SNB角、Po-NB、S-Ar、Co-Gn、ANS-Me、ANS-Gn/N-Gn(%)增加,ANB角、Wits值、NA-PA、U1-SN、U1-L1、U6-Ptm明显减小;软组织:FCA、ULP明显减小,LLP、LLL及EP-UL增加;气道:V_总、V鼻咽、V腭咽及相应最小横截面积显著增加。结论:对于生长发育高峰期前的骨性Ⅱ类错(牙合)畸形采用双期矫治疗效明显,可有效改善下颌后缩、前牙唇倾度及软组织侧貌,上气道通气状况也得以改善,对临床有参考意义。
Objective To evaluate the clinical effects of using a modified activator combined with Damon self-ligating bracket technique in treating skeletal ClassⅡmalocclusion with mandibular retrusion in adolescents.Methods Twenty cases of skeletal ClassⅡmalocclusion patients before the peak growth period with mandibular retrusion were collected from 2019 to 2021.A modified activator appliance was used in Phase I and Damon self-ligating technique was used in PhaseⅡ.Changes in hard tissue,soft tissue and airway before and after treatment were analyzed.Results CBCT measurements showed:for hard tissues,SNB,Po-NB,S-Ar,Co-Gn,ANS-Me and ANS-Gn/N-Gn(%)increased,while ANB,Wit,NA-PA,U1-SN,U1-L1 and U6-Ptm significantly decreased;for soft tissues,FCA and ULP significantly decreased,while LLP,LLL and EP-UL increased;for airway,Vtotal,Vnaso and Vpalato significantly increased.Conclusion For skeletal Class II malocclusion before the peak growth period,the two-phase orthodontic treatment is effective in improving mandibular retrusion,anterior teeth inclination and the profile;the upper airway patency is also improved,which has clinical reference value.
作者
冯海霞
朱琦
钱超
王华
谷妍
FENG Haixia;ZHU Qi;QIAN Chao;WANG Hua;GU Yan(Department of Stomatology,Suzhou Ninth People's Hospital,Suzhou 215200,Jiangsu,China;Department of Stomatology,Liyang People's Hospital,Changzhou 213300,Jiangsu,China;Department of Orthodontics,the Affiliated Stomatological Hospital of Nanjing Medical University,State Key Laboratory Cultivation Base of Research,Prevention and Treatment for Oral Diseases(Nanjing Medical University),Nanjing 210029,Jiangsu,China)
出处
《中国美容医学》
2025年第8期145-150,共6页
Chinese Journal of Aesthetic Medicine
基金
国家自然科学基金项目(编号:81500815)
江苏省科教能力提升工程-江苏省研究型医院建设单位(编号:YJXYYJSDW4)
江苏省医学创新中心(编号:CXZX202227)。
