Evidence map›Paper›PMID 40450267›Full record

ArticleBMC oral health2025

How to adaptively balance 'classic' or 'conservative' approaches in tooth defect management: a 3D-finite element analysis study.

Jiani Xu, Xu Liang, Lili Hu, Chen Sun, Zhipeng Zhang, Jiawei Yang, Jie Wang

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PubMed Full text at PMC Publisher
In one paragraph

Article in BMC oral health, 2025. 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

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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. Article
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4 · The record

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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.

Jiani XuDepartment of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Xu LiangState Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, China.
Lili HuResearch Institute of Urbanization and Urban Safety, School of Future Cities, University of Science and Technology Beijing, Beijing, China.
Chen SunDepartment of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Zhipeng ZhangState Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai, China.
Jiawei YangApplied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China. jiaweiyang1214@126.com.
Jie WangDepartment of Prosthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. quanjiaowangjie@sjtu.edu.cn.

Funding

National Youth Top Talent Support Fund 2022QNRC001Shanghai Health Care Commission Youth Project Fund 20224Y0356
6 · The paper itself

Abstract

backgroundThe widespread adoption of resin-based composites has increased interest in minimally invasive treatment strategies that prioritize the preservation of sound dentin. While classic cavity preparation techniques remain clinically relevant, the optimal cavity design for ensuring restoration longevity and residual tooth structure integrity remains uncertain. This study aims to investigate the influence of cavity dimensions on the mechanical performance of resin composites and natural tooth structures using finite element analysis (FEA). By evaluating stress distribution across different cavity configurations, this study seeks to determine the optimal cavity design for various tooth defects, ultimately offering insights into effectively balancing conventional and conservative cavity preparation principles.

methodsTwelve Class II cavity models with varying lengths (L), widths (W), and depths (D) were generated using a single extracted natural tooth. A vertical occlusal load of 500 N was applied, and interactions among the different model components were simulated using tie constraints. The distribution of maximum principal stress (MaxPS) was analyzed via static linear FEA.

resultsMedium-sized cavities exhibited relatively lower stress concentrations. The depth, width, and length of the cavities significantly influenced the MaxPS values. Notably, cavities with a depth of 2/3 demonstrated lower MaxPS values compared to both shallower and deeper counterparts (Dentin: W

conclusionCavity dimensions play a critical role in influencing stress distribution within both the restorative material and the tooth structure, underscoring the need to optimize cavity size. These findings support decision-making during cavity preparation, highlighting the trade-off between preserving tooth structure and ensuring mechanical stability. It is important to note that this approach should not be considered as a one-size-fit-all recommendation, but rather as a case-specific strategy tailored to the unique clinical conditions of each patient.

Indexed as

Composite ResinsDental Cavity PreparationDental Restoration, PermanentFinite Element AnalysisDental Stress AnalysisHumansImaging, Three-DimensionalStress, MechanicalComposite ResinsCavity designFinite element analysis (FEA)Indirect Class II restorationStress distributionTooth preparation

Identifiers

PMID40450267
PMCPMC12125724

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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.