Pass矫治器与Twin-block功能矫治器联合自锁托槽在安氏Ⅱ类1分类错𬌗畸形中的矫正效果比较

Comparison of the correction effect of the PASS appliance and the Twin-block functional appliance combined with self-ligating bracket for Angle Class II, Division 1 malocclusions

摘要:

目的 对比Pass矫治器与Twin-block功能矫治器联合自锁托槽在安氏Ⅱ类1分类错畸形中的矫正效果。方法 选取2020年2月—2022年5月在彭州市中医医院就诊的安氏Ⅱ类1分类错畸形患者72例，采用随机数字表法将其分成研究组和对照组，每组36例。对照组接受Twin-block功能矫治器联合自锁托槽治疗，研究组接受Pass矫治器治疗。对比两组临床疗效、颌牙排齐时间、硬组织头影测量指标［上中切牙轴与蝶鞍中心-鼻根点平面夹角（U1-SN）、下中切牙轴与鼻根点-上齿槽座点连接角（U1-NA）、上齿槽座点、鼻根点及下次槽座点连接角（ANB）、蝶鞍中心、鼻根点及上齿槽座点连接角（SNA）］、软组织头影测量目标［上唇到审美平面距离（TUL-FP）、下唇H线距、下唇到审美平面距离（TLL-FP）、鼻唇角］、矫治效果及患者满意度。结果 研究组总有效率高于对照组（P <0.05）。研究组上颌牙排齐时间和下颌牙排齐时间均短于对照组（P <0.05）。两组治疗前后U1-SN、ANB、SNA、SNB的差值比较，差异无统计学意义（P >0.05）。研究组治疗前后U1-NA的差值高于对照组（P <0.05）。研究组治疗前后下唇H线距、TUL-FP、鼻唇角、TLL-FP的差值高于对照组（P <0.05）。研究组治疗前后同行评估等级指数（PAR）评分的差值高于对照组（P <0.05）。研究组满意度高于对照组（P <0.05）。结论 相比于Twin-block功能矫治器联合自锁托槽，Pass矫治器治疗安氏Ⅱ类1分类错畸形患者效果确切，可提高矫治效果，改善面部侧貌美学，缩短颌牙排齐时间，且患者满意度较高。牙合

Abstract:

Objective To compare the correction effect of the PASS appliance and the Twin-block functional appliance combined with self-ligating bracket for Angle Class II, Division 1 malocclusions.Methods From February 2020 to May 2022, a total of 72 patients with Angle Class II, Division 1 malocclusions in our hospital were selected. They were divided into the study group (n = 36) and the control group (n = 36) by the random number table method. The control group received treatment with Twin-block functional appliance combined with self-ligating bracket, and the study group was treated with the PASS appliance. The clinical efficacy, teeth alignment time, hard tissue cephalometric measurements [Upper Incisor to Sella-Nasion angle (U1-SN), Upper Incisor to Nasion-A point angle (U1-NA), A point-nasion-B point angle (ANB), Sella-Nasion to A point angle (SNA) ], soft tissue cephalometric measurements [upper lip to esthetic plane distance (TUL-FP), lower lip H-line distance, lower lip to esthetic plane distance (TLL-FP), nasolabial angle], correction effect and patient satisfaction were compared between the two groups.Results The overall effective rate of the study group was higher than that of the control group (P < 0.05). The maxillary and mandibular teeth alignment time in the study group were shorter than those in the control group (P < 0.05). The differences of U1-SN, ANB, SNA and SNB before and after treatment were not different between the two groups (P > 0.05). The difference of U1-NA before and after treatment in the study group was higher than that in the control group (P < 0.05). The differences of lower lip H-line distance, TUL-FP, nasolabial angle and TLL-FP before and after treatment in the study group were higher than those in the control group (P < 0.05). The difference of peer assessment rating (PAR) index before and after treatment was higher in the study group than in the control group (P < 0.05). The satisfaction of the study group was higher than that of the control group (P < 0.05).Conclusions Compared with the Twin-block functional appliance combined with self-ligating bracket, PASS appliance has a definite effect in the treatment of patients with Angle Class II, Division 1 malocclusions. It can enhance the correction effect, improve facial profile aesthetics, shorten the maxillary and mandibular teeth alignment time, and achieve higher patient satisfaction.