Interdisciplinary Department of Medicine, University of Bari "Aldo Moro", 70121 Bari, Italy.
Department of Surgical Sciences and Integrated Diagnostics (DISC), Genova University, 16132 Genoa, Italy.
Medicina (Kaunas). 2024 Apr 30;60(5):746. doi: 10.3390/medicina60050746.
The objective of this retrospective controlled study is to compare class II growing patients who underwent treatment with two different functional appliances: the Fraenkel regulator (FR-2), utilized as the control group, and the elastodontic device "Cranium Occluded Postural Multifunctional Harmonizers" (AMCOP), utilized as the test group. The study sample consisted of 52 patients with class II division I malocclusion (30 males, 22 females, mean age 8.6 ± 1.4 years) who were treated with the two different types of appliances: Group 1 ( = 27, mean age 8 [7.00, 9.00] years, 12 females, 15 males) received treatment with AMCOP, while Group 2 ( = 25, mean age 9.2 years [8.20, 10.00], 10 females, 15 males) received treatment with FR-2. The mean treatment duration for Group 1 was 28.00 [21.50, 38.00] months, while for Group 2 it was 23.70 [17.80, 27.40] months. Cephalometric analyses were performed on lateral cephalograms taken before treatment (T1) and after treatment (T2). Significant intragroup differences were observed over time in Group 1 for 1^/PP. Similarly, significant intragroup differences were observed over time in Group 2 for SNB, ANB, and IMPA. Both treatment modalities resulted in the correction of class II malocclusion with dentoalveolar compensation, although the treatment duration with AMCOP tended to be longer on average.
本回顾性对照研究的目的是比较两种不同功能矫治器（ FR-2 为对照组，弹性牙合垫“颅颌定位多功能矫形器”为实验组）治疗 II 类生长患者的效果。研究样本由 52 例安氏 II 类 1 分类错（ 30 名男性， 22 名女性，平均年龄 8.6 ± 1.4 岁）患者组成，分别使用这两种矫治器进行治疗：第 1 组（ = 27 例，平均年龄 8 岁 [7.00 ， 9.00] ， 12 名女性， 15 名男性）使用 AMCOP 治疗，第 2 组（ = 25 例，平均年龄 9.2 岁 [8.20 ， 10.00] ， 10 名女性， 15 名男性）使用 FR-2 治疗。第 1 组的平均治疗时间为 28.00 个月 [21.50 ， 38.00] ，第 2 组为 23.70 个月 [17.80 ， 27.40] 。在治疗前（ T1 ）和治疗后（ T2 ）拍摄头颅侧位片进行头影测量分析。第 1 组在 1^/PP 上随时间表现出显著的组内差异。同样，第 2 组在 SNB 、 ANB 和 IMPA 上随时间也表现出显著的组内差异。两种治疗方法都能纠正 II 类错牙合伴牙性代偿，但 AMCOP 的治疗时间平均倾向更长。
