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目的比较自锁矫治器与传统结扎式矫治器用于拔牙矫治病例的矫治效率。方法从2006—2010年青岛大学医学院附属医院口腔正畸科就诊并完成治疗的错畸形病例中选择使用Damon 3MX自锁矫治器(自锁组)与传统结扎式矫治器(结扎组)拔除4颗第一前磨牙病例各15例,分别记录其整平排齐时间、关闭拔牙间隙时间、总体治疗时间及有效复诊次数,并将数据进行统计学分析。结果整平排齐时间:自锁组为(5.8±2.10)个月,结扎组为(4.5±0.71)个月;关闭拔牙间隙时间:自锁组为(8.3±3.65)个月,结扎组为(6.6±2.99)个月;总体治疗时间:自锁组为(20.4±5.04)个月,结扎组为(16.8±2.66)个月;有效复诊次数:自锁组为(19.0±4.83)次,结扎组为(16.4±3.41)次。自锁组的整平排齐时间、关闭拔牙间隙时间、总体治疗时间及有效复诊次数均较结扎组多,但两组间差异均无统计学意义(P>0.05)。结论在拔牙矫治中,Damon 3MX自锁矫治器并未表现出比传统结扎式矫治器更高的矫治效率。
Objective To compare the efficiency of orthodontic treatment with self-locking appliance and traditional ligation appliance. Methods Damon 3MX self-locking appliance (self-locking appliance) and traditional ligation appliance (ligation appliance) were selected from patients with orthopedic department of orthopedics department of Affiliated Hospital of Qingdao University Medical College from 2006 to 2010. The patients were divided into two groups: Four first premolar cases of 15 cases, respectively, recorded the level of alignment time, closing the tooth extraction time, the overall treatment time and the number of effective referrals, and the data for statistical analysis. Results The time of self-locking group was (5.8 ± 2.10) months and that of ligation group (4.5 ± 0.71) months. The time of closing the tooth extraction group was (8.3 ± 3.65) months in the self-locking group, (6.6 ± 2.99) months. The overall treatment time was (20.4 ± 5.04) months in the self-locking group and (16.8 ± 2.66) months in the ligation group. The number of effective referrals was (19.0 ± 4.83) times in the self- Ligation group was (16.4 ± 3.41) times. There was no significant difference between the two groups (P> 0.05). However, there was no significant difference between the two groups (P> 0.05). Conclusion During the tooth extraction, the Damon 3MX self-locking appliance did not show higher correction efficiency than the traditional ligation appliance.