摘要
目的探讨自锁托槽矫治器对安氏Ⅱ类1分类错颌患者的矫正效果,为临床治疗提供依据。方法选取联勤保障部队940医院安宁分院口腔科2016年1月至2018年6月收治的安氏Ⅱ类1分类错颌患者128例进行研究。按照随机数表法将患者分为观察组和对照组,每组64例。观察组采用自锁托槽矫治器进行矫正治疗,对照组使用传统金属托槽进行矫正治疗。于治疗14个月后通过由上牙槽座点、鼻根点及蝶胺中心所构成的角(SNA)由下牙槽座点、鼻根点及蝶胺中心所构成的角(SNB),由鼻根点、下齿槽座点、上齿槽座点构成的角(ANB),下颌平面角(MP-SN)、关节点到A点之间的距离(AR-A),关节点到B点之间的距离(AR-B),关节点到颏前点之间的距离(AR-Pg)以及下中切牙长轴和下颌平面之间的夹角(IMPA)比较两组患者矫正前后牙齿复合情况,并比较下颌后缩情况及矫正后总有效率。结果观察组患者矫正后总有效率为95.31%,明显高于对照组的82.81%,差异有统计学意义(P<0.05);矫正后,观察组和对照组患者ANB [(4.24±0.64)°vs (5.83±1.19)°]比较,观察组明显小于对照组,SNA [(79.75±6.57)°vs(77.15±5.31)°]、SNB [(75.64±5.73)°vs (71.63±4.24)°]、AR-B [(94.58±7.41) mm vs (91.25±5.98) mm]及AR-Pg (103.28±9.36) mm vs (97.83±7.74) mm],观察组明显大于对照组,差异均有统计学意义(P<0.05);矫正后,观察组和对照组患者的关节上间隙[(2.80±0.79) mm vs (2.49±0.54) mm]、关节后间隙[(1.57±0.48) mm vs (1.37±0.37) mm]、髁突高度[(3.89±095) mm vs (3.59±0.72) mm]比较,观察组明显大于对照组,差异均有统计学意义(P<0.05)。结论自锁托槽矫治器治疗安氏Ⅱ类1分类错颌可改善患者牙齿复合及下颌后缩,矫正效果显著,值得临床推广应用。
Objective To investigate the effect of self-locking bracket appliances on Angle classⅡdivision 1 malocclusion,and to provide basis for clinical treatment.Methods A total of 128 patients with Angle ClassⅡdivision 1 malocclusion admitted to Dental Department,the Anning Branch of 940 Hospital from January 2016 to June 2018 were treated with self-locking bracket appliance.According to random number table,the patients were divided into observation group and control group,with 64 patients in each group.The observation group was treated with self-locking bracket appliance,and the control group was treated with traditional metal bracket.After 14 months of treatment,sella-nasion-A point(SNA)angle,sella-nasion-B point(SNB)angle,A point-nasion-B point,ANB(ANB)angle,mandibular plane(MP-SN)angle,the distance between the joint point and A point(AR-A),the distance between the joint point to B point(AR-B),the distance from the joint point to the anterior chin point(AR-Pg),and incisal mandibular plane angle(IMPA)were compared between the two groups before and after the correction,and the mandibular retraction and the total effective rate after correction were compared.Results The total effective rate of the observation group was 95.31%,significantly higher than 82.81%of the control group(P<0.05).After correction,compared with the control group,the observation group had significantly smaller ANB,and bigger SNA,SNB,AR-B,AR-Pg(P<0.05):ANB,(4.24±0.64)°vs(5.83±1.19)°;SNA,(79.75±6.57)°vs(77.15±5.31)°;SNB,(75.64±5.73)°vs(71.63±4.24)°;AR-B,(94.58±7.41)mm vs(91.25±5.98)mm;AR-Pg,(103.28±9.36)mm vs(97.83±7.74)mm.After correction,the observation group had significantly larger supra-articular clearance,post-articular clearance,and condyle height(P<0.05):(2.80±0.79)mm vs(2.49±0.54)mm,(1.57±0.48)mm vs(1.37±0.37)mm,(3.89±095)mm vs(3.59±0.72)mm.Conclusion The self-locking bracket appliance for treating Angle classⅡdivision 1 malocclusion of jaundice can improve the dental complexion and mandibular retraction of patients,and the correction effect is significant,which is worthy of clinical popularization and application.
作者
陆玲
汤佰枫
LU Ling;TANG Bai-feng(Dental Department,the Anning Branch of 940 Hospital of Joint Logistics Support Force,Lanzhou 730070,Gansu,CHINA)
出处
《海南医学》
CAS
2020年第11期1432-1435,共4页
Hainan Medical Journal
关键词
自锁托槽矫治器
安氏Ⅱ类1分类错颌
牙齿复合
下颌后缩
矫正
效果
Self-locking bracket appliance
Angle classⅡdivision 1 malocclusion
Dental complexion
Mandibular retraction
Correction
Effect
作者简介
通讯作者:陆玲,E-mail:1762524730@qq.com。
