Soft tissue evaluation after maxillary protraction with RPE or with the ALT-RAMEC protocol : A controlled 3D study.

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-10-01 Epub Date: 2022-09-28 DOI:10.1007/s00056-022-00428-0

Elvan Onem Ozbilen, Mustafa Onur Ari, Hanife Nuray Yilmaz, Sibel Biren

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引用次数: 0

Abstract

Purpose: To evaluate soft tissue changes following maxillary protraction with different expansion protocols using three-dimensional (3D) stereophotogrammetry.

Methods: Pretreatment (T0) and postprotraction (T1) stereophotogrammetry and lateral cephalometric images of skeletal class III patients were included in this retrospective study. In all, 32 patients were treated either with a combination of rapid palatal expansion and facemask (RPE/FM; n = 16; mean age: 9.94 ± 0.68 years) or with alternate rapid maxillary expansion and constriction together with a facemask (Alt-RAMEC/FM; n = 16; mean age: 9.74 ± 1.35 years). As a control group 16 untreated patients were recruited (mean age: 9.46 ± 0.8 years). For superimpositioning of the 3D images taken at T0 and T1, the face was divided into defined regions and 3D and differences between the groups were evaluated using 3‑matic software (Materialise Europe, Leuven, Belgium). Cephalometric analyses were also performed.

Results: While the increases in the cephalometric parameters SNA and ANB were significantly greater in the treatment groups, the value for SNB also increased in the control group (p < 0.05). The results of the stereophotogrammetry analyses demonstrated that the mean changes in the RPE/FM and in the Alt-RAMEC/FM groups were significantly different for the midface compared to the control group (0.33 ± 0.26 mm, 0.3 ± 0.31 mm, 0.1 ± 0.18 mm). The maximum positive, negative, and mean changes were also significantly different between the treatment and control groups for the upper lip (p < 0.05). For the lower lip and the chin significant backward movements in the RPE/FM as well as in the Alt-RAMEC/FM group (-1.06 ± 1.26 mm, -0.68 ± 0.45 mm) were observed, while the control group (0.09 ± 0.53 mm) presented changes in the opposite direction. Regarding soft tissue changes, no significant differences were found between the RPE/FM and Alt-RAMEC/FM groups.

Conclusion: Both treatment protocols improved the soft tissue profile due to a forward movement of the midface and the upper lip, and a backward movement of the lower lip and chin, compared to the control group.

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RPE或ALT-RAMEC方案上颌前牵引后的软组织评估：一项对照三维研究。

目的：利用三维立体摄影测量技术评估不同扩张方案上颌前牵引后软组织的变化。方法：本回顾性研究包括骨骼III级患者的术前（T0）和术后（T1）立体摄影测量和侧位头影测量图像。总共有32名患者接受了快速腭扩张和面罩（RPE/FM；n = 16；平均年龄：9.94 ± 0.68岁）或与面罩一起交替快速上颌扩张和收缩（Alt-RAMEC/FM；n = 16；平均年龄：9.74 ± 1.35岁）。作为对照组，招募了16名未经治疗的患者（平均年龄：9.46岁） ± 0.8年）。为了叠加T0和T1拍摄的3D图像，将面部划分为定义的区域和3D，并使用3‑matic软件（Materialise Europe，Leuven，Belgium）评估各组之间的差异。还进行了头部测量分析。结果：虽然治疗组的头影测量参数SNA和ANB的增加明显更大，但对照组的SNB值也有所增加（p 结论：与对照组相比，由于面中部和上唇向前运动，下唇和下巴向后运动，两种治疗方案都改善了软组织轮廓。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.