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使用3D打印个性化装置联合透明矫治器对上颌第一磨牙压低的生物力学分析：一项有限元研究及临床应用

Biomechanical analysis of maxillary first molar intrusion using 3D printed personalized device combined with clear aligner: a finite element study and clinical application.

作者信息

Xue Qin, Hu Mei, Xu Minglu, Zhang Xuyang, Wang Huaqiao, Sun Mimi, Wang Chunjuan, He Yao

机构信息

The Affiliated Stomatological Hospital of Chongqing Medical University, No. 426, North Songshi Rd, Chongqing, 401147, China.

Chongqing Key Laboratory of Oral Disease, Chongqing, China.

出版信息

Clin Oral Investig. 2025 Apr 21;29(5):259. doi: 10.1007/s00784-025-06327-z.

DOI:10.1007/s00784-025-06327-z
PMID:40257591
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12011921/
Abstract

OBJECTIVES

The aim of this study is to compare the biomechanical effects of maxillary first molar intrusion using the fixed appliance, microimplant, and clear aligner with or without 3D printed personalized device, and to demonstrate the effect of this device through a relevant clinical case.

METHODS

A clinical patient with an overerupted maxillary molar was selected to construct a patient-oriented three-dimensional model of the four intrusion patterns. The initial displacement of the teeth and the stress distribution of the PDL were compared. The 3D printed personalized device was used in this case, and the data of the case was collected to assess the therapeutic effect.

RESULTS

The side effects of target tooth tilt and adjacent tooth displacement were obvious in fixed appliance and clear aligner, while the side effects were smaller in 3D printed personalized device, and the intrusion efficiency is slightly higher than that of microimplant. In clinical practice of 3D printed personalized device, a favorable intrusion effect was achieved.

CONCLUSIONS

The 3D printed personalized device had relatively high intrusion efficiency and stress relaxation on the target tooth and reduced the displacement and stress concentration on the anchorage teeth to a certain extent.

CLINICAL RELEVANCE

In clinical practice, clear aligner with 3D printed personalized device has a good therapeutic effect on molar intrusion.

摘要

目的

本研究旨在比较使用固定矫治器、微种植体以及带有或不带有3D打印个性化装置的透明矫治器对上颌第一磨牙压低的生物力学效应，并通过相关临床病例展示该装置的效果。

方法

选择一名上颌磨牙过度萌出的临床患者，构建针对四种压低模式的个体化三维模型。比较牙齿的初始位移和牙周膜的应力分布。本病例使用了3D打印个性化装置，并收集病例数据以评估治疗效果。

结果

固定矫治器和透明矫治器中目标牙倾斜和邻牙位移的副作用明显，而3D打印个性化装置的副作用较小，且压低效率略高于微种植体。在3D打印个性化装置的临床实践中，取得了良好的压低效果。

结论

3D打印个性化装置具有较高的压低效率和对目标牙的应力松弛作用，在一定程度上减少了支抗牙的位移和应力集中。

临床意义

在临床实践中，带有3D打印个性化装置的透明矫治器对磨牙压低具有良好的治疗效果。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/976c40d4cf0d/784_2025_6327_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/96475405b537/784_2025_6327_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/3f9f67d74876/784_2025_6327_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/0437d6ab469d/784_2025_6327_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/27ca8f8305c7/784_2025_6327_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/8a69ebb8a59b/784_2025_6327_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/172a77004a92/784_2025_6327_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/e145f625c750/784_2025_6327_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/976c40d4cf0d/784_2025_6327_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/96475405b537/784_2025_6327_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/3f9f67d74876/784_2025_6327_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/0437d6ab469d/784_2025_6327_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/27ca8f8305c7/784_2025_6327_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/8a69ebb8a59b/784_2025_6327_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/172a77004a92/784_2025_6327_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/e145f625c750/784_2025_6327_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/265c/12011921/976c40d4cf0d/784_2025_6327_Fig8_HTML.jpg

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The effect of maxillary molar distalization with clear aligner: a 4D finite-element study with staging simulation.上颌磨牙远移的效果：分期模拟的 4D 有限元研究。
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Using the Finite Element Method to Determine the Odonto-Periodontal Stress for a Patient with Angle Class II Division 1 Malocclusion.
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