La Trobe Rural Health School, La Trobe University, Bendigo, Victoria, Australia.
Orthodontic Unit, Adelaide Dental School, University of Adelaide, Adelaide, South Australia, Australia.
Am J Orthod Dentofacial Orthop. 2024 Dec;166(6):515-523. doi: 10.1016/j.ajodo.2024.07.008. Epub 2024 Aug 12.
Data regarding the efficacy of deep overbite correction with clear aligner therapy in adolescent patients are lacking. This study aimed to investigate the efficacy of deep overbite reduction in adolescent patients treated with Invisalign (Align Technology, San Jose, Calif) aligners.
This retrospective study investigated a sample of 102 patients aged 10-17 years from a large database. All patients had completed wear of a prescribed series of Invisalign aligners with planned overbite reduction on a nonextraction basis. The predicted, pretreatment, and posttreatment overbite measurement values were obtained from Align Technology's ClinCheck digital facility. Linear modeling, with Bland-Altman plots, was used to compare the effect of age, the use of bite ramps, and the adoption of the eighth-generational (G8) protocol on the difference between predicted and achieved overbite measurements.
A total of 102 patients with a mean ± standard deviation age of 13.94 ± 1.53 years satisfied the selection criteria. A mean ± standard deviation of 41.38 ± 30.43% of the predicted overbite reduction was achieved. There were no differences in the predictability of overbite reduction between patients who were aged <14 years or those aged 14-17 years (P = 0.73), between patients prescribed and not prescribed bite ramps (P = 0.25), or between patients prescribed the G8 protocol and not prescribed the G8 protocol (P = 0.65).
The average achieved overbite was less than half of what was planned by the orthodontists via the ClinCheck facility. The age grouping, the provision of bite ramps, and the G8 protocol appear to have little influence on the efficacy of overbite reduction in adolescent patients.
关于使用透明牙套治疗青少年深覆合疗效的数据尚缺乏。本研究旨在探讨使用 Invisalign（Align Technology，加利福尼亚州圣何塞）隐形矫治器治疗青少年深覆合的疗效。
这是一项回顾性研究，从一个大型数据库中抽取了 102 名 10-17 岁的患者作为样本。所有患者均已完成预定系列 Invisalign 隐形矫治器的佩戴，治疗计划为非拔牙的深覆合矫治。从 Align Technology 的 ClinCheck 数字化设备中获取预测、治疗前和治疗后的深覆合测量值。采用线性模型和 Bland-Altman 图比较年龄、使用咬颌垫、采用第八代（G8）方案对预测和实际深覆合测量值之间差值的影响。
共 102 名患者符合入选标准，平均年龄（13.94±1.53）岁。平均有 41.38%±30.43%的预测深覆合得到了矫治。<14 岁和 14-17 岁患者的深覆合矫治预测性无差异（P=0.73）；是否使用咬颌垫的患者之间无差异（P=0.25）；是否采用 G8 方案的患者之间也无差异（P=0.65）。
平均实际深覆合矫治量小于正畸医生通过 ClinCheck 预测的一半。年龄分组、咬颌垫的使用以及 G8 方案似乎对青少年深覆合的矫治效果影响不大。
