Department of Orthodontics, Faculty of Dentistry, Trakya University, Edirne, Turkey.
Department of Orthodontics, Institute of Odontology, The Sahlgrenska Academy, University of Gothenburg, and Specialist Clinic of Orthodontics, Public Dental Service, Västra Götaland Region, Gothenburg, Sweden.
Am J Orthod Dentofacial Orthop. 2022 Jul;162(1):e44-e51. doi: 10.1016/j.ajodo.2021.12.017. Epub 2022 May 11.
This study aimed to compare the treatment outcome of patients whose orthodontic treatment was completed before or during the coronavirus disease 2019 pandemic.
Pretreatment and posttreatment models of 100 patients treated with fixed orthodontic appliances were evaluated using the peer assessment rating (PAR) index. Posttreatment models and panoramic radiographs were measured and scored with the objective grading system (OGS). All patients had their treatment plans before the coronavirus disease 2019 pandemic, but the orthodontic treatment finishing date was before (prepandemic: group 1, n = 50) or during (pandemic: group 2, n = 50) the pandemic. Intergroup comparisons were tested with an independent samples t test or Mann-Whitney U test. Chi-square test statistics and Fisher exact test were used to compare categorical variables.
Significant higher posttreatment weighted maxillary alignment score was found in group 2. However, no significant difference was found between the groups concerning the mean total weighted PAR reduction (29.8 ± 9.9 vs 25.6 ± 8.7) and posttreatment total weighted PAR scores (1 vs 2). The PAR index score improvement (%) was similar between the groups (93.7 ± 7.1 vs 89.9 ± 13.0). No statistically significant difference was found between the groups for the total OGS score (32 vs 33). A lower score for marginal ridge height (4 vs 3) and a higher score for buccolingual inclination (7 vs 11), and a lower score for occlusal relationship (3 vs 1) were found in group 2. Canceled appointments (1.1 ± 0.7 vs 4.8 ± 1.6) and the number of missed appointments (0.6 ± 0.5 vs 1.1 ± 0.8) were statistically higher in group 2, whereas the total number of appointments (27.3 ± 8.8 vs 21.8 ± 5.4) were statistically less. The treatment duration was comparable in both groups.
Reduced and irregular appointments during the pandemic resulted in significantly higher posttreatment weighted maxillary alignment and worsening of the buccolingual inclination. However, the PAR score improvement, total OGS score, and treatment duration were not affected.
本研究旨在比较在新冠疫情大流行之前或期间完成正畸治疗的患者的治疗结果。
采用同伴评估量表（PAR）对 100 名接受固定正畸治疗的患者的治疗前和治疗后的模型进行评估。使用客观分级系统（OGS）对治疗后的模型和全景片进行测量和评分。所有患者在新冠疫情大流行之前都制定了治疗计划，但正畸治疗结束日期分别在大流行之前（大流行前组，n=50）或大流行期间（大流行组，n=50）。采用独立样本 t 检验或曼-惠特尼 U 检验对组间比较进行检验。卡方检验和 Fisher 确切检验用于比较分类变量。
大流行组 2 的治疗后上颌牙弓排列的加权评分显著较高。然而，两组之间的平均总加权 PAR 减少量（29.8±9.9 与 25.6±8.7）和治疗后总加权 PAR 评分（1 与 2）无显著差异。两组的 PAR 指数评分改善率（%）相似（93.7±7.1 与 89.9±13.0）。两组的 OGS 总分（32 与 33）无统计学差异。大流行组 2 的边缘嵴高度得分较低（4 与 3），颊舌倾斜度得分较高（7 与 11），咬合关系得分较低（3 与 1）。大流行组 2 的预约取消率（1.1±0.7 与 4.8±1.6）和缺诊率（0.6±0.5 与 1.1±0.8）较高，而预约总数（27.3±8.8 与 21.8±5.4）较低。两组的治疗时间相似。
大流行期间预约减少和不规则预约导致治疗后上颌牙弓排列明显改善和颊舌倾斜度恶化。然而，PAR 评分改善、OGS 总分和治疗时间不受影响。
