Evidence map›Paper›PMID 42393710›Full record

ArticleHead & face medicine2026

Occlusal function and masticatory efficiency of sagittal malocclusions: a cross-sectional cohort study of orthognathic therapy.

L-M Mai, J Mouchoux, P Meyer-Marcotty, A Quast, P Brockmeyer, H Schliephake, J Schmid, B Wiechens

Erratum issuedAbstract read
In one paragraph

Article in Head & face medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. 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

5 · Who and what money

Authors and funding

8 authors.

L-M MaiDepartment of Orthodontics, University Medical Center Göttingen, Göttingen, Germany. lisa-marie.mai@med.uni-goettingen.de.ORCID http://orcid.org/0009-0006-3380-9844
J MouchouxDepartment of Orthodontics, University Medical Center Göttingen, Göttingen, Germany.
P Meyer-MarcottyDepartment of Orthodontics, University Medical Center Göttingen, Göttingen, Germany.
A QuastDepartment of Orthodontics, University Medical Center Göttingen, Göttingen, Germany.
P BrockmeyerDepartment of Oral and Maxillofacial Surgery, University Medical Center Göttingen, Göttingen, Germany.
H SchliephakeDepartment of Oral and Maxillofacial Surgery, University Medical Center Göttingen, Göttingen, Germany.
J SchmidDepartment of Orthodontics, University of Münster, Münster, Germany.
B WiechensDepartment of Orthodontics, University Medical Center Göttingen, Göttingen, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis cross-sectional study aimed to evaluate occlusal characteristics and masticatory performance in patients with skeletal Class II and Class III malocclusions. Both digital occlusal analysis and standardized bolus analysis were employed to assess functional outcomes in non-surgically treated, surgically treated, and control patients.

methodsA total of 133 orthognathic patients (71 female; median age 29.8 years) and 20 controls (9 female; median age 30.0 years) were included. Skeletal malocclusions were categorized as compensated, decompensated, and a separate surgically treated cohort assessed at 5-year postoperative follow-up. Digital occlusal parameters (total tooth contact (TTC), time of occlusion (TOC), occlusal asymmetry (OAS), anterior and posterior tooth contact (ATC, PTC)) were recorded and masticatory performance was assessed using a standardized two-color bolus analysis.

resultsNon-surgically treated Class II and Class III patients showed significantly reduced TTC, ATC, PTC, and prolonged TOC as well as lower bolus mixing scores compared with controls (p < 0.05). Surgically treated patients at 5-year follow-up exhibited occlusal parameters and bolus mixing scores comparable to controls, indicating normalization of occlusal parameters and masticatory efficiency.

conclusionSkeletal Class II and Class III malocclusions are associated with impaired occlusal function and reduced masticatory efficiency. Orthognathic therapy effectively restores occlusal parameters as well as functional chewing ability in the long term. Combining digital occlusal analysis with bolus analysis provides a comprehensive and objective evaluation of masticatory rehabilitation in orthognathic patients.

trial registrationDRKS00025729.

Indexed as

Dental OcclusionMalocclusion, Angle Class IIMalocclusion, Angle Class IIIMasticationOrthognathic Surgical ProceduresAdultCohort StudiesCross-Sectional StudiesFemaleHumansMaleTreatment OutcomeYoung AdultDental occlusionDentofacial deformityMasticationOrthodonticsOrthognathic surgery

Identifiers

PMID42393710
PMCPMC13343896

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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.