Bucur Sorana Maria, Bud Eugen, Decusară Mioara, Olteanu Cristian-Doru
Department of Dentistry, Faculty of Medicine, "Dimitrie Cantemir" University of Târgu Mureș, 3-5 Bodoni Sandor Str., 540545 Târgu-Mureș, Romania.
Department of Orthodontics, Faculty of Dental Medicine, "George Emil Palade" University of Medicine and Pharmacy, Sciences and Technology, 540139 Târgu-Mureș, Romania.
Medicina (Kaunas). 2024 Dec 8;60(12):2024. doi: 10.3390/medicina60122024.
: Our study aims to evaluate the effectiveness of ClearCorrect clear aligners (The Straumann Group) in improving gingival recession, which developed following prior fixed orthodontic treatment. The specific objectives were to assess changes in recession severity in patients with orthodontic gingival recessions following aligner therapy and to determine whether the initial severity of recession influenced improvement rates across three categories-mild (RT1), moderate (RT2), and severe (RT3)-as defined by the Cairo classification. Fifty-six patients with gingival recession from previous orthodontic treatment received aligner therapy for seven to twelve months, focusing on 146 recession sites, primarily in the lower anterior region. Recession severity was classified and tracked as RT1, RT2, and RT3. Statistical analyses, including a Chi-square test, assessed improvement rates across these categories. Among severe recessions (RT3), 52% showed no improvement, while 48% exhibited some improvement, with 16% improving to RT1. In the moderate group (RT2), 63% improved to RT1, and 16% resolved. The mild group (RT1) showed a 58% reduction in recession depth. Chi-square testing confirmed a statistically significant difference in improvement rates across the three groups ( = 1.44 × 10). Clear aligners may contribute to gingival recession improvement, particularly in mild and moderate cases (RT1 and RT2), though severe cases (RT3) show a more limited response.
我们的研究旨在评估ClearCorrect透明矫治器（士卓曼集团）对改善先前固定正畸治疗后出现的牙龈退缩的有效性。具体目标是评估接受矫治器治疗的正畸性牙龈退缩患者的退缩严重程度变化，并确定根据开罗分类法定义的轻度（RT1）、中度（RT2）和重度（RT3）三类患者中，初始退缩严重程度是否会影响改善率。56例曾接受正畸治疗且有牙龈退缩的患者接受了7至12个月的矫治器治疗，主要针对146个退缩部位，这些部位主要位于下前牙区。退缩严重程度被分类并追踪为RT1、RT2和RT3。包括卡方检验在内的统计分析评估了这些类别的改善率。在重度退缩（RT3）患者中，52%没有改善，而48%有一定程度的改善，其中16%改善至RT1。在中度组（RT2）中，63%改善至RT1，16%得到解决。轻度组（RT1）的退缩深度减少了58%。卡方检验证实三组的改善率存在统计学显著差异（ = 1.44 × 10）。透明矫治器可能有助于改善牙龈退缩，特别是在轻度和中度病例（RT1和RT2）中，不过重度病例（RT3）的反应较为有限。
