Department of Orthodontics, University of Damascus Dental School, Damascus, Syria.
Department of Orthodontics, University of Damascus Dental School, Damascus, Syria.
J World Fed Orthod. 2022 Feb;11(1):3-11. doi: 10.1016/j.ejwf.2021.09.002. Epub 2021 Oct 21.
The lengthy period of time required is one of the main reasons patients refuse orthodontic treatment. In addition, treatment may have negative effects on periodontal tissues.
This study aimed to evaluate the overall time needed for leveling and alignment and the periodontal indices in adult patients with severe crowding. Patients were treated using either self-ligating brackets associated with flapless corticotomy (SLBs + FC group), self-ligating brackets alone (SLBs group), or conventional brackets (CBs group) alone.
A total of 57 adult patients (10 male patients, 47 female patients) referred to the Department of Orthodontics, the University of Damascus Dental School from August 2018 to March 2019, were enrolled in this trial. The patients were randomly allocated to 1 of 3 groups: CBs (mean age: 19.62 ± 2.42 years), SLBs (mean age: 19.98 ± 2.84 years), or SLBs + FC (mean age: 20.67 ± 2.59 years). The overall alignment time for the upper anterior teeth was calculated. The following periodontal parameters were measured at 5 assessment times: plaque index, gingival index, papillary bleeding index, and probing depth.
The average leveling and alignment time was 81.89 ± 9.49 days, 123 ± 10.69 days, and 165.25 ± 13.05 days for the SLBs + FC group, the SLBs group, and the CBs group, respectively. A significant reduction in the overall alignment duration was found in the SLBs + FC group by 50%, and in the SLBs group by 25%, compared to the control group, with a statistically significant difference among the 3 groups (P < 0.001). There were statistically significant differences in the periodontal indices (except probing depth) after 1 month, with values greater in the SLBs + FC group (P < 0.05).
Using self-ligating brackets in combination with flapless corticotomy may be effective in accelerating upper dental decrowding in adult patients, with a reduction of 50% of the normal treatment time using traditional brackets. Using self-ligating brackets alone reduced treatment time by 25%. The adjunctive flapless corticotomy did not cause clinically negative effects on the periodontal tissues.
治疗所需的漫长时间是患者拒绝正畸治疗的主要原因之一。此外，治疗可能对牙周组织产生负面影响。
本研究旨在评估严重拥挤的成年患者排齐整平所需的总时间以及牙周指数。使用自锁托槽联合无瓣皮质切开术（SLBs+FC 组）、自锁托槽（SLBs 组）或传统托槽（CBs 组）单独治疗患者。
2018 年 8 月至 2019 年 3 月，共有 57 名成年患者（10 名男性患者，47 名女性患者）被纳入本试验，这些患者被分配至 3 个组之一：CBs 组（平均年龄：19.62±2.42 岁）、SLBs 组（平均年龄：19.98±2.84 岁）或 SLBs+FC 组（平均年龄：20.67±2.59 岁）。计算上前牙的整体排齐时间。在 5 个评估时间点测量以下牙周参数：菌斑指数、牙龈指数、乳头出血指数和探诊深度。
SLBs+FC 组、SLBs 组和 CBs 组的平均排齐和整平时间分别为 81.89±9.49 天、123±10.69 天和 165.25±13.05 天。与对照组相比，SLBs+FC 组的整体排齐时间减少了 50%，SLBs 组减少了 25%，3 组间差异有统计学意义（P<0.001）。1 个月后，牙周指数（探诊深度除外）有统计学差异，SLBs+FC 组值较大（P<0.05）。
在成年患者中，使用自锁托槽联合无瓣皮质切开术可能有助于加速上颌牙齿排齐，使用传统托槽可将正常治疗时间缩短 50%。单独使用自锁托槽可将治疗时间缩短 25%。辅助无瓣皮质切开术对牙周组织没有产生临床负面影响。
