Evidence map›Paper›PMID 41023679›Full record

ArticleBMC oral health2025

Clinical investigation of the correlation between tooth wear and dynamic functional occlusal condition in Chinese cohort.

Chang Guo, Chuangyang Yang, Yan Li, Xinyi Zhang, Biying Qiu, Haohan Yu, Zengrui Liu, Meng Meng, Ling Zhang

Abstract read
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 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

9 authors.

Chang GuoState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
Chuangyang YangSchool of Medicine, Northwest University, Xi'an, 710069, Shaanxi, China.
Yan LiState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
Xinyi ZhangState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
Biying QiuState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
Haohan YuState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
Zengrui LiuState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China.
Meng MengState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China. mengm19870430@outlook.com.
Ling ZhangState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, Shaanxi, China. lzhang.dent@foxmail.com.

Funding

Haohan Yu LX2022 - 404HSRD VA I01 HX002024Ling Zhang 2024MS05Meng Meng 24YXYJ0140Yan Li HX2024 - 007
6 · The paper itself

Abstract

backgroundThe interplay between tooth wear severity and dynamic occlusal patterns, such as canine protected occlusion (CPO) and group function occlusion (GFO), remains inadequately characterized, particularly in populations with distinct dietary and occlusal traits. This cross-sectional study aimed to investigate the correlation between dynamic occlusal conditions and tooth wear severity in Chinese adults, while evaluating age and gender as modulating factors.

methodsA total of 300 participants (aged 18–76 years) without parafunctional habits or temporomandibular disorders (TMD) were enrolled. Dynamic occlusion patterns (CPO vs. GFO) were classified using articulating paper for preliminary screening and T-Scan III for dynamic validation. Tooth wear severity was quantified via the Smith & Knight Index across six dentition sextants. Statistical analyses included independent t-tests, ANOVA, chi-square tests, and binary logistic regression.

resultsAge ≥ 45 years (OR = 33.44, P < 0.001), male gender (OR = 2.20, P = 0.048), and group function occlusion (OR = 2.21, P = 0.045) independently predicted severe wear. group function occlusion prevalence increased with age (60.9–85.5%), correlating with higher wear severity (P < 0.001). Males exhibited greater wear than females (P < 0.05). Posterior molars and mandibular incisors showed predominant dentin exposure.

conclusionsGFO, advanced age, and male gender are critical risk factors for severe tooth wear in Chinese adults. The age-dependent transition from CPO to GFO represents a biomechanical adaptation to cumulative masticatory forces, while gender disparities highlight sex-specific biomechanical and behavioral influences. These findings underscore the necessity for population-specific prosthodontic guidelines addressing Chinese dietary habits and temporomandibular joint (TMJ) morphology to mitigate wear progression and optimize clinical outcomes.

trial registrationNot applicable.

Indexed as

Dental OcclusionTooth WearAdolescentAdultAgedAge FactorsChinaCross-Sectional StudiesEast Asian PeopleFemaleHumansMaleMiddle AgedSex FactorsYoung AdultAgeCanine protected occlusionChinese populationDynamic occlusion conditionGenderGroup function occlusionTooth wear

Identifiers

PMID41023679
PMCPMC12482874

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LicenceCC BY-NC-ND
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Registered trials

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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.