摘要
目的分析Twin-block矫治器对生长发育高峰期且存在口呼吸的骨性Ⅱ类青少年的纠正效果和颌面部软硬组织的变化。方法选择生长发育高峰期且伴有口呼吸的骨性Ⅱ类青少年30例,采用Twin-block矫治器治疗,治疗时间12个月,分别在治疗的3个月、6个月、9个月、12个月时统计口呼吸的有效纠正率,治疗结束后6个月复查。对治疗前、治疗结束、治疗结束6个月这3个时期的头颅侧位片或模型进行测量,利用SPSS 26.0软件分析。结果口呼吸的有效纠正率随治疗时间呈递增趋势,下齿槽座角(SNB)、面角(NP-FH)、下中切牙角(L1-MP)增大,上下齿槽座角(ANB)、Y轴角(Y axis)、上中切牙角(U1-SN)减小,下唇倾角(B’Li-FH)、颏唇沟角(LiB’Pg’)、软组织面角(NsPg’-FH)、面突角(GSnPg’)增大,上唇突角(NsLs-FH)、下唇突角(NsLi-FH)减小,差异均具有统计学意义(P<0.05)。治疗结束6个月前牙覆[牙合]覆盖保持稳定。结论Twin-block矫治器在生长发育高峰期能有效纠正口呼吸,促进下颌骨发育的同时改善软组织面型。
Objective To analyze the effect of correcting mouth breathing and the variation of facial hard and soft tissue of class Ⅱ malocclusion with mouth breathing by Twin-block in the growth peak.Methods 30 cases in growth peak with class Ⅱ malocclusion and mouth breathing were selected.They were treated with Twin-block appliance,the treatment lasted for 12 months.The correction rate of mouth breathing was counted at 3,6,9 and 12 months after treatment respectively,the re-examination was conducted 6 months after treatment.Lateral cranial radiographs or models were measured before treatment,after treatment and 6 months after treatment.The results were analyzed with SPSS 26.0.Results The effective correction rate of mouth breathing increased with time,SNB,NP-FH,L1-MP increased,ANB,Y axis,U1-SN decreased,B’Li-FH,LiB’Pg’,NsPg’-FH,GSnPg’ increased,NsLs-FH,NsLi-FH decreased,these differences were statistically significant(P<0.05).After treatment for 6 months,the anterior overbite overjet remained stable.Conclusion The mouth breathing were corrected effectively,the growth of the mandible was stimulated,and the soft tissue profile was improved in growth peak by Twin-block appliance.
作者
陈菁菁
赵虎
CHEN Jingjing;ZHAO Hu(No.2 Department of Stomatology,Baoding NO.1 Central Hospital,Baoding 071000,China)
出处
《医学研究与教育》
CAS
2021年第3期12-17,共6页
Medical Research and Education
基金
保定市科学技术研究与发展计划项目(18ZF190)。
