Department of Preventive Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, P.O. Box 3030, Irbid, Jordan.
Department of Preventive Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan.
Clin Oral Investig. 2023 Sep;27(9):5671-5678. doi: 10.1007/s00784-023-05188-8. Epub 2023 Aug 2.
To compare between two archwire (AW) sequences in terms of alignment speed and root resorption (RR).
Fifty-four patients (14 males, 40 females) requiring orthodontic treatment were randomly allocated into two groups; in group A (mean age 18.3) treatment started with 0.014″ nickel titanium (NiTi) followed by 0.019″×0.025″ NiTi AW while group B (mean age 18.9) the AW sequence was 0.014″ NiTi, 0.018″ NiTi, 0.016″×0.022″ NiTi, 0.019″×0.025″ NiTi. The primary outcome was to compare the alignment speed of the crowded upper and lower teeth between the two different AW sequences. The secondary outcome was to assess the magnitude of upper and lower incisors' root resorption (RR) measured by digital periapical radiographs taken at the start of treatment and 1 month after the placement of the working AW. t-test was used to compare the alignment speed and RR between the two groups. Statistical significance was predetermined at the P ≤ 0.05 level for all tests.
The 54 patients were randomized in a 1:1 ratio to either group. Seven patients were excluded and complete data were obtained for 47 patients; 24 and 23 patients in group A and group B, respectively. There was no significant difference between the two groups in the alignment speed in the lower arch (P>0.05, mean difference=-0.44, 95% CI=-0.9 to 0.03) and root resorption (P>0.05). Alignment of upper arch was faster in group A (P < 0.0001, mean difference= - 0.9, 95% CI =-1.4 to -0.5).
There is no significant difference between the two groups in the alignment speed in the lower arch and incisors' RR. Upper arch alignment was faster in group A.
Not registered.
比较两种弓丝（AW）序列在排齐速度和牙根吸收（RR）方面的差异。
将 54 名需要正畸治疗的患者（14 名男性，40 名女性）随机分为两组；A 组（平均年龄 18.3 岁）治疗开始时使用 0.014″镍钛（NiTi），然后使用 0.019″×0.025″NiTi AW，B 组（平均年龄 18.9 岁）的 AW 序列为 0.014″NiTi、0.018″NiTi、0.016″×0.022″NiTi、0.019″×0.025″NiTi。主要结局是比较两种不同 AW 序列对拥挤的上颌和下颌牙齿的排齐速度。次要结局是通过治疗开始时和放置工作 AW 后 1 个月拍摄的数字根尖射线照片评估上颌和下颌切牙牙根吸收（RR）的程度。使用 t 检验比较两组之间的排齐速度和 RR。所有检验的统计学意义水平均预设为 P≤0.05。
54 名患者按 1:1 的比例随机分为两组。有 7 名患者被排除，47 名患者（A 组 24 名，B 组 23 名）获得完整数据。两组患者在下颌弓的排齐速度（P>0.05，平均差异=-0.44，95%CI=-0.9 至 0.03）和牙根吸收（P>0.05）方面无显著差异。A 组上颌弓的排齐速度更快（P<0.0001，平均差异=-0.9，95%CI=-1.4 至-0.5）。
两组患者在下颌弓和切牙 RR 的排齐速度方面无显著差异。A 组上颌弓的排齐速度更快。
未注册。
