Evidence map›Paper›PMID 40217228›Full record

Trial reportBMC oral health2025

Effect of occlusal interference on condylar position and trajectory of movement: a randomized crossover-controlled trial.

Miao Wei, Yu Xie, Bingbing Lv, Wenzhi Niu

Abstract readRandomized Controlled Trial
In one paragraph

Trial report 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 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Review
  3. 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

4 authors.

Miao WeiSchool of Stomatology, Xuzhou Medical University, Xuzhou, Jiangsu, China.
Yu XieDepartment of Implant Dentistry, Affiliated Stomatological Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.
Bingbing LvSchool of Stomatology, Xuzhou Medical University, Xuzhou, Jiangsu, China.
Wenzhi NiuSchool of Stomatology, Xuzhou Medical University, Xuzhou, Jiangsu, China. wenzhi_n@163.com.

Funding

Jiangsu Commission of Health Guidance Z2021060
6 · The paper itself

Abstract

objectiveThe occlusal interferences may alter the position of the condyles in the articular fossa and trigger abnormal mandibular movements, but the specific effects on condylar position and movement trajectory are currently unknown. The present study was designed as a randomized crossover-controlled trial to investigate the direct effects of distinguished types of occlusal interference on condylar position and movement trajectory.

methods14 volunteers with healthy dentition were recruited. Each of them underwent four occlusal interference conditions: mediotrusive occlusal interference (MOI), laterotrusive occlusal interference (LOI), dummy occlusal interference (DOI), and free of interference. The sequence of interferences was randomized. Mandibular movements were recorded and measured by using jaw motion analysis system, during which the condylar trajectory and functional parameters, including sagittal condylar inclination (SCI) and Bennett Angle (BA) were analyzed to assess the condylar motion status. Furthermore, a descriptive analysis of condylar positional trends was conducted to measure the relative three-dimensional position of the condyle.

resultsAffected by MOI, the condylar axis turned towards the anterior and superior directions. BA values exhibited a significant increase on the interference side and a decrease on the other side, accompanied by a reduction in SCI on the interference side. LOI caused a larger mandibular deviation angle towards the interference side, resulting in a notable increase in BA. The differences were all statistically significant (P<0.05).

conclusionOcclusal interferences can alter the condylar position and movement trajectory during the mandibular movement in laterotrusion and protrusion. Different occlusal interferences have different influences, manifested in the varying values of condylar guidance inclination.

trial registrationThe study was registered at the Chinese Clinical Trial Registry on 01/05/2024 (Identification number: ChiCTR2400084150).

Indexed as

MalocclusionMandibular CondyleAdultCross-Over StudiesFemaleHumansMaleMovementYoung AdultBennett angleCondylar positionMovement trajectoryOcclusal interferenceSagittal condylar guidanceTemporomandibular disorders

Identifiers

PMID40217228
PMCPMC11992706

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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.