Evidence map›Paper›PMID 40257591›Full record

ArticleClinical oral investigations2025

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

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

Abstract readCase Reports
PubMed Full text at PMC Publisher
In one paragraph

Article in Clinical oral investigations, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Qin XueThe Affiliated Stomatological Hospital of Chongqing Medical University, No. 426, North Songshi Rd, Chongqing, 401147, China.
Mei HuThe Affiliated Stomatological Hospital of Chongqing Medical University, No. 426, North Songshi Rd, Chongqing, 401147, China.
Minglu XuThe Affiliated Stomatological Hospital of Chongqing Medical University, No. 426, North Songshi Rd, Chongqing, 401147, China.
Xuyang ZhangThe Affiliated Stomatological Hospital of Chongqing Medical University, No. 426, North Songshi Rd, Chongqing, 401147, China.
Huaqiao WangChongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China.
Mimi SunDepartment of Orthodontics, Affiliated Stomatological Hospital of Chongqing Medical University, Chongqing, China.
Chunjuan WangThe Affiliated Stomatological Hospital of Chongqing Medical University, No. 426, North Songshi Rd, Chongqing, 401147, China. cj_wang@hospital.cqmu.edu.cn.
Yao HeThe Affiliated Stomatological Hospital of Chongqing Medical University, No. 426, North Songshi Rd, Chongqing, 401147, China. yaohe@hospital.cqmu.edu.cn.

Funding

2024 Chongqing Young and middle-aged medical Talents Project YXGD202438Chinese Stomatological Association Youth Clinical Research Foundation for Orthodontics CSAO2020- 07Chongqing medical scientific research project (Joint project of Chongqing Health Commission and Science and Technology Bureau) 2024MSXM070Chongqing medical scientific research project (Joint project of Chongqing Health Commission and Science and Technology Bureau) 2024QNXM013
6 · The paper itself

Abstract

objectivesThe 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.

methodsA 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.

resultsThe 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.

conclusionsThe 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.

Indexed as

MolarOrthodontic Appliance DesignPrinting, Three-DimensionalTooth Movement TechniquesBiomechanical PhenomenaDental Stress AnalysisFinite Element AnalysisHumansMaxilla3D printed personalized deviceBiomechanicsClear alignerFinite element analysisMolar intrusion

Identifiers

PMID40257591
PMCPMC12011921

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.