上下颌联合快速扩弓结合MBT直丝弓矫治器矫正错[牙合]畸形的临床疗效分析  

Clinical efficacy of correction of malocclusion with MBT straight wire appliance combined with rapid maxillary and mandibular expansion

作　　者：曾佳 ZENG Jia(Department of Orthodontics,Shenyang Stomatology Hospital,Shenyang 110000,China)

机构地区：[1]沈阳市口腔医院正畸科,110000

出　　处：《中国现代药物应用》2022年第3期68-70,共3页Chinese Journal of Modern Drug Application

摘　　要：目的研究上下颌联合快速扩弓结合MBT直丝弓矫治器矫正错[牙合]畸形的临床应用效果。方法20例错[牙合]畸形患者,均行上下颌联合快速扩弓结合MBT直丝弓矫治器进行矫正。比较患者矫正前后的牙弓变化(上下颌牙弓的宽度及长度),矫正前后的投影测量情况[前颅底平面-上齿槽座点角(SNA)、前颅底平面-下齿槽座点角(SNB)、上齿槽座点-鼻根点-下齿槽座点角(ANB)、下颌平面-前颅底平面角(MP-SN)、下颌平面角(MP-FH)、上中切牙-前颅底平面夹角(UI-SN)、下中切牙-下颌平面角(LI-MP)、覆颌、覆盖]。结果矫正后,患者上下颌牙弓的宽度均较矫正前增加、长度均较矫正前减少,差异具有统计学意义(P<0.05)。矫正后,患者的SNB(75.7±2.2)°、LI-MP(98.3±3.1)°大于矫正前的(74.0±2.1)、(95.5±2.8)°,ANB(4.57±1.10)°、MP-SN(36.5±1.3)°、UI-SN(102.57±2.60)°、覆颌(2.01±2.00)mm、覆盖(4.46±1.60)mm均小于矫正前的(6.03±2.12)°、(37.6±1.6)°、(114.62±2.50)°、(3.29±1.30)mm、(7.43±2.20)mm,差异具有统计学意义(P<0.05);矫正前后的SNA、MP-FH比较,差异无统计学意义(P>0.05)。结论上下颌联合快速扩弓结合MBT直丝弓矫治器矫正错[牙合]畸形拥有显著的效果,值得推广。Objective To study the clinical effect of correction of malocclusion with MBT straight wire appliance combined with rapid maxillary and mandibular expansion.Methods 20 patients with malocclusion were all corrected by MBT straight wire appliance combined with rapid maxillary and mandibular expansion.Comparison was made on the dental arch changes(width and length of the maxillary and mandibular arches),projection measurements[sella-nasion-subspinale angle(SNA),sella-nasion-supramental angle(SNB),subspinale-nasion-supramental angle(ANB),mandibular plane/sella-nasion angle(MP-SN),mandibular plane/frankfort horizontal angle(MP-FH),upper incisor/sella-nasion plane angle(UI-SN),and lower incisor/mandibular plane angle(LI-MP),jaw covering,covering]before and after correction.Results After correction,the width of the maxillary and mandibular arches increased and the length decreased compared to those before correction,and the differences were statistically significant(P<0.05).After correction,the SNB(75.7±2.2)°,LI-MP(98.3±3.1)°were greater than(74.0±2.1)°,(95.5±2.8)°before correction,and the ANB(4.57±1.10)°,MP-SN(36.5±1.3)°,UI-SN(102.57±2.60)°,jaw covering(2.01±2.00)mm,covering(4.46±1.60)mm were all smaller than(6.03±2.12)°,(37.6±1.6)°,(114.62±2.50)°,(3.29±1.30)mm,(7.43±2.20)mm before correction.All the differences were statistically significant(P<0.05).There was no statistically significant difference in SNA and MPFH before and after correction(P>0.05).Conclusion The combination of mandibular rapid arch expansion and MBT straight wire appliance has a significant effect in correcting malocclusion,which is worthy of popularization.

关 键 词：上下颌联合快速扩弓 MBT直丝弓矫治器 错[牙合]畸形 

分 类 号：R783.5[医药卫生—口腔医学]