计算机辅助评估弹性矫形器与透明矫形器在下齿间距离变化中的疗效

E. Ortu, D. Pietropaoli, S. Cova, M. Giannoni, A. Monaco
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摘要

背景:本初步研究旨在验证两种正畸矫治器对成长期患者下齿间距离变化的影响。方法:选取20例10 ~ 16岁的患者作为研究对象,分为试验组和对照组。试验组患者10例,男5例,女5例;平均年龄(10.4±1.57岁)。对照组10例,男5例,女5例;平均年龄(10.8±1.53岁)。两组表现出相同的正畸特征。正畸标准是:骨骼I级关系,磨牙I级关系,存在较低的拥挤。根据丹尼尔斯和里士满指数,患者被评估为轻度或中度拥挤。通过口内扫描在三个时间点评估犬间距离:T0(开始治疗前),T1(6个月后)和T2(1年后)。数据分析采用非参数方法,通过Wilcoxon符号秩检验。结果:两组在T0、T1、T2时比较,差异均无统计学意义(p < 0.05)。结论:弹性矫治装置和透明矫直器可以成功地帮助正畸医师进行下弓扩张治疗。这些器具佩戴舒适,每天清洁简单,减少了看牙医的次数。最后,但并非最不重要的是,这些设备使牙医能够在COVID-19大流行封锁期间继续进行正畸治疗。
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Efficacy of Elastodontic Devices vs. Clear Aligners in Lower Intercanine Distance Changes Assessed by Computer-Aided Evaluation
Background: This pilot study aimed to verify the efficacy of two orthodontic appliances in relation to changes in the lower intercanine distance in growing patients. Methods: Twenty patients aged 10–16 years were enrolled in the study and separated into test and control groups. The test group included 10 patients (5 males, 5 females; mean age, 10.4 ± 1.57 years) who were treated with an elastodontic device. The control group included 10 patients (5 males, 5 females; mean age 10.8 ± 1.53 years) who were treated with clear aligners. The two groups exhibited the same orthodontic features. The orthodontic criteria were: skeletal class I relationship, molar class I relationship, and presence of lower crowding. Patients were evaluated as having mild or moderate crowding according to the Daniels and Richmond index. The lower intercanine distance was evaluated at three timepoints via intraoral scans: T0 (before starting therapy), T1 (after six months), and T2 (after 1 year). Data were analyzed using a nonparametric approach via the Wilcoxon signed-rank test. Results: There was no statistically significant difference between the two groups at T0, T1, or T2 (p < 0.05). Conclusions: elastodontic devices and clear aligners can successfully help the orthodontist conduct lower arch expansion treatment. These appliances are comfortable to wear, simple to clean every day, and reduce the number of dentist appointments. Finally, but not of least importance, these devices have allowed dentists to continue orthodontic treatments during the lockdowns of the COVID-19 pandemic.
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