Evidence map›Paper›PMID 39572697›Full record

ArticleScientific reports2024

Associations between condylar height relative to occlusal plane and condylar osseous condition and TMJ loading based on 3D measurements and finite element analysis.

Yanji Gong, Jinyi Zhu, Fangjie Zheng, Yunfan Zhu, Shangyan Sui, Yang Liu, Deqiang Yin

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

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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

2 citing papers in PubMed.

  1. [Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2026
    Review
  2. 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

7 authors.

Yanji GongNational Clinical Research Center for Oral Disease, Department of Jinjiang Outpatient, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
Jinyi ZhuNational Clinical Research Center for Oral Disease, Department of Temporomandibular Joint, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
Fangjie ZhengCollege of Aerospace Engineering, Chongqing University, Chongqing, 400044, China.
Yunfan ZhuCollege of Aerospace Engineering, Chongqing University, Chongqing, 400044, China.
Shangyan SuiNational Clinical Research Center for Oral Disease, Department of Temporomandibular Joint, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
Yang LiuNational Clinical Research Center for Oral Disease, Department of Temporomandibular Joint, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China. liu@scu.edu.cn.
Deqiang YinCollege of Aerospace Engineering, Chongqing University, Chongqing, 400044, China. deqiang.yin@cqu.edu.cn.

Funding

Clinical Research Project of West China Hospital of Stomatology LCYJ2023-YF-3National Key Research and Development Program of China 2023YFC3605600Natural Science Foundation of Sichuan Province 2023NSFSC0568
6 · The paper itself

Abstract

To investigate the relationship between condylar height relative to occlusal plane (CHO) and condylar osseous condition and the changes of condylar stress loading before and after CHO modifications. The condylar osseous conditions of 434 temporomandibular joints (TMJ) were assessed and grouped. Measurements of anatomical parameters were performed on CT-based reconstructed 3D stomatognathic models. Differences in anatomical parameters of the jaws in the different groups were compared, and the correlation between the Angle α (representing the CHO ratio) and related parameters was investigated. A finite element model (FEM) was constructed using 3D finite element analysis (FEA). The Angle α was altered by modifying condylar position and the inclination of mandibular plane (MP) and occlusal plane (OP) based on the FEM to analyze condylar stress loading under different working conditions. There were differences in anatomical parameters among the different groups, with the smaller Angle α in the osseous destruction group. Angle α was negatively correlated with the inclination of MP and OP. The FEA illustrated condylar stress loading changed after modifying the Angle α by both two modalities. After modifying condylar position, the stress increased with the proximal movement of the condyle toward the OP. After changing the inclination of MP and OP, the stress increased with increasing inclinations. Changes in CHO correlate with condylar osseous condition, and distal movement of the condyle to the OP and reduction of MP and OP inclination may reduce TMJ stress overload. In clinical practice, it is advisable to assess patients for sufficient CHO ratio, as insufficiency in CHO may elevate the risk of TMJ stress overload. The CHO ratio could be modulated by changing the inclination of the OP.

Indexed as

Finite Element AnalysisMandibular CondyleTemporomandibular JointAdolescentAdultDental OcclusionFemaleHumansImaging, Three-DimensionalMaleMiddle AgedStress, MechanicalTomography, X-Ray ComputedYoung AdultCondylar heightTemporomandibular pointThree-dimensional finite elementThree-dimensional measurement

Identifiers

PMID39572697
PMCPMC11582652

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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.