Department of Dentistry - Orthodontics and Craniofacial Biology, Radboudumc Graduate School, Radboud University Medical Center, PO Box 9101, Dentistry 309, 6500, HB, Nijmegen, the Netherlands.
Radboudumc 3D Lab, Radboudumc Graduate School, Radboud University Medical Center, PO Box 9101, 6500, HB, Nijmegen, the Netherlands.
Clin Oral Investig. 2023 Sep;27(9):5343-5351. doi: 10.1007/s00784-023-05154-4. Epub 2023 Jul 29.
To evaluate the midfacial soft tissue changes of the face in patients treated with miniscrew-assisted rapid palatal expansion (MARPE).
3D facial images and intra-oral scans (IOS) were obtained before expansion (T0), immediately after completion of expansion (T1), and 1 year after expansion (T2). The 3D images were superimposed and two 3D distance maps were generated to measure the midfacial soft tissue changes: immediate effects between timepoints T0 and T1 and overall effects between T0 and T2. Changes of the alar width were also measured and dental expansion was measured as the interpremolar width (IPW) on IOS.
Twenty-nine patients (22 women, 7 men, mean age 25.9 years) were enrolled. The soft tissue in the regions of the nose, left of philtrum, right of philtrum, and upper lip tubercle demonstrated a statistically significant anterior movement of 0.30 mm, 0.93 mm, 0.74 mm, and 0.81 mm, respectively (p < 0.01) immediately after expansion (T0-T1). These changes persisted as an overall effect (T0-T2). The alar width initially increased by 1.59 mm, and then decreased by 0.08 mm after 1 year, but this effect was not significant. The IPW increased by 4.58 mm and remained stable 1 year later. There was no significant correlation between the increase in IPW and alar width (r = 0.35, p = 0.06).
Our findings indicate that MARPE results in significant but small changes of the soft tissue in the peri-oral and nasal regions. However, the clinical importance of these findings is limited.
MARPE is an effective treatment modality to expand the maxilla, incurring only minimal and clinically insignificant changes to the midfacial soft tissues.
评估微型骨钉辅助快速腭扩张（MARPE）治疗后面中部软组织的变化。
在扩张前（T0）、扩张完成后即刻（T1）和扩张后 1 年（T2），分别获取患者的 3D 面部图像和口内扫描（IOS）。对 3D 图像进行叠加，生成两个 3D 距离图，以测量面中部软组织的变化：T0 点和 T1 点之间的即时效应和 T0 点和 T2 点之间的整体效应。还测量鼻翼宽度的变化，并在 IOS 上测量牙齿扩张的尖牙间宽度（IPW）。
共纳入 29 名患者（22 名女性，7 名男性，平均年龄 25.9 岁）。在鼻子、人中左侧、人中右侧和上唇结节区域，软组织分别呈现出 0.30mm、0.93mm、0.74mm 和 0.81mm 的统计学显著的前向移动（p＜0.01），扩张即刻（T0-T1）。这些变化作为整体效应（T0-T2）持续存在。鼻翼宽度最初增加了 1.59mm，1 年后减少了 0.08mm，但无统计学意义。IPW 增加了 4.58mm，1 年后保持稳定。IPW 的增加与鼻翼宽度之间无显著相关性（r=0.35，p=0.06）。
我们的研究结果表明，MARPE 导致口周和鼻周区域软组织发生显著但微小的变化。然而，这些发现的临床意义有限。
MARPE 是一种有效的上颌扩张治疗方法，对面中部软组织的影响极小，且无临床意义。
