Periodontics, Department of Periodontology, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
Executive Presidency of Academic Affairs, Saudi Commission for Health Specialties, Riyadh 11614, Saudi Arabia.
Biomed Res Int. 2022 Apr 29;2022:4505063. doi: 10.1155/2022/4505063. eCollection 2022.
The present study evaluated the possible effect of low-intensity pulsed ultrasound (LIPUS) on buccal bone plate thickness and height after maxillary arch expansion using clear aligners. The cone beam computed tomography (CBCT) of before and immediately after maxillary arch expansion (3 mm per side) of 28 adult patients (18 in LIPUS group and 10 in control) (average age 36.2 ± 13.2 years old) was analyzed. The wearing protocol of clear aligners in the LIPUS group was to change the aligners every 4 to 5 days, while the wearing protocol in the control group (without LIPUS) was to change the aligners every 7 to 10 days. Bone thickness at 3 mm and 6 mm from the buccal alveolar bone crests, along with the measurements of buccal alveolar bone heights, was measured in standardized sagittal sections. Data were analyzed through paired sample -test and the Wilcoxon test. The results were given as mean ± standard deviation and 95% confidence intervals. value < 0.05 was considered statistically significant. The results showed significant increase in bone height in both groups. However, comparison of both LIPUS and control groups showed no statistically significant difference in bone thickness or bone height. The results of this study showed that the use of LIPUS together with accelerated aligner tray change protocol did not affect alveolar bone integrity when compared to the control group.
本研究评估了低强度脉冲超声（LIPUS）对上颌弓扩张后颊骨板厚度和高度的可能影响，使用透明矫正器。对 28 名成年患者（LIPUS 组 18 名，对照组 10 名）上颌弓扩张前和即刻（每侧 3mm）的锥形束计算机断层扫描（CBCT）进行了分析（平均年龄 36.2 ± 13.2 岁）。LIPUS 组的透明矫正器佩戴方案是每 4-5 天更换一次，而对照组（无 LIPUS）的佩戴方案是每 7-10 天更换一次。在标准化矢状切片中测量了距颊牙槽骨嵴 3mm 和 6mm 处的骨厚度，以及颊牙槽骨高度的测量值。通过配对样本 t 检验和 Wilcoxon 检验对数据进行分析。结果以平均值 ± 标准偏差和 95%置信区间表示。值 < 0.05 被认为具有统计学意义。结果表明，两组的骨高度均显著增加。然而，与对照组相比，LIPUS 组和对照组之间的骨厚度或骨高度比较均无统计学差异。本研究结果表明，与对照组相比，使用 LIPUS 联合加速矫正器更换方案不会影响牙槽骨完整性。
