Pham Thu-Trang, Thi Hong Thuy Pham, Tran Cao Binh, Dong Ngoc Quang, Hoang Viet
Department of Orthodontics, National Hospital Odonto and Stomatology, Ha Noi, Vietnam.
Department of Orthodontics, Hai Phong Medical University, Hai Phong, Vietnam.
J Orthod Sci. 2025 Mar 25;14:8. doi: 10.4103/jos.jos_87_24. eCollection 2025.
This study aimed to determine the accuracy of overbite correction in patients with deep bite using the clear aligner therapy (CAT).
This retrospective study included 31 patients prescribed orthodontic treatment using CAT from January 2020 to January 2024. Clinical information was collected via X-ray results at pre-treatment and post-treatment stages. Treatment outcomes were measured at three stages: pre-treatment, post-treatment (clinical results), and predict treatment (predict results) as programmed in ClinCheck®.
Significant changes were observed in X-ray in both overbite (3.85 ± 1.38 mm to 2.93 ± 1.13 mm) and overjet (5.19 ± 1.79 mm to 3.43 ± 1.14 mm) following CAT. For clinical crown lengthening (CCL) of tooth 31, significant differences were noted between pre-treatment and post-treatment (-0.31 ± 0.66 mm) and between predicted and clinical results (-0.21 ± 0.58 mm). For CCL of tooth 41, significant differences were found between pre-treatment and post-treatment (-0.36 ± 0.66 mm) and between prediction and post-treatment (-0.32 ± 0.65 mm). The percentage of deep bites differed significantly between pre-treatment vs predicted treatment (38.10 ± 14.90%), pre-treatment vs post-treatment (11.80 ± 14.30%), and predicted treatment vs post-treatment (-26.40 ± 12.60%). Similar trends were observed in mean overbite (2.77 ± 1.07 mm, 0.69 ± 0.93 mm, and - 2.08 ± 0.83 mm, respectively).
Our findings support the use of CAT as a reliable and aesthetic option for treating deep bite malocclusions.
本研究旨在确定使用透明矫治器疗法（CAT）矫正深覆合患者覆合的准确性。
这项回顾性研究纳入了2020年1月至2024年1月期间接受CAT正畸治疗的31例患者。通过治疗前和治疗后阶段的X线结果收集临床信息。按照ClinCheck®程序，在三个阶段测量治疗结果：治疗前、治疗后（临床结果）和预测治疗（预测结果）。
CAT治疗后，X线显示覆合（从3.85±1.38毫米至2.93±1.13毫米）和覆盖（从5.19±1.79毫米至3.43±1.14毫米）均有显著变化。对于31号牙的临床冠延长（CCL），治疗前与治疗后之间（-0.31±0.66毫米）以及预测结果与临床结果之间（-0.21±0.58毫米）存在显著差异。对于41号牙的CCL，治疗前与治疗后之间（-0.36±0.66毫米）以及预测结果与治疗后之间（-0.32±0.65毫米）存在显著差异。深覆合的百分比在治疗前与预测治疗之间（38.10±14.90%）、治疗前与治疗后之间（11.80±14.30%）以及预测治疗与治疗后之间（-26.40±12.60%）存在显著差异。在平均覆合方面也观察到类似趋势（分别为2.77±1.07毫米、0.69±0.93毫米和-2.08±0.83毫米）。
我们的研究结果支持将CAT作为治疗深覆合错牙合畸形的一种可靠且美观的选择。
