Evidence map›Paper›PMID 40907537›Full record

ArticleEuropean journal of dentistry2026

Cephalometric Measurements of Upper Airway at Upright and Supine Posture in Adult OSAS Patients.

Chun Hown Ng, Guang Chu, Min Gu, Yiu Yan Leung, Lizhuo Lin, Yanqi Yang

Abstract read
In one paragraph

Article in European journal of dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 2 pooled it
–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, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Review
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

6 authors.

Chun Hown NgDivision of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR, People's Republic of China.
Guang ChuDivision of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR, People's Republic of China.
Min GuDivision of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR, People's Republic of China.ORCID 0000-0001-6447-9573
Yiu Yan LeungDivision of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, 34 Hospital Road, Sai Ying Pun, Hong Kong SAR, People's Republic of China.ORCID 0000-0002-6670-6570
Lizhuo LinDivision of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR, People's Republic of China.
Yanqi YangDivision of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong SAR, People's Republic of China.ORCID 0000-0002-3582-1277

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: This article aims to investigate whether posture (upright vs. supine) affects airway-related cephalometric measurements in adult Chinese patients with obstructive sleep apnea syndrome (OSAS). Materials and Methods: Twenty-seven adult Chinese male patients with OSAS (mean age, 50.1 ± 10.2 years), diagnosed through polysomnography, were recruited. All of the recruited patients had their lateral cephalograms taken in the upright posture and lateral cephalometric images taken using spiral computed tomography scans in the supine posture within a 3-month interval. Healthy Chinese men were included as the control group. Fourteen cephalometric parameters were measured using the images of the upper airway and craniofacial structures taken in the upright and supine postures. Statistical Analysis: A paired Student's Results: Significant differences were observed in the distance between the tip of the soft palate and the posterior pharyngeal wall, tongue length, tongue height, and hyoid bone ( Conclusion: Posture mainly affects the cephalometric measurements of the soft palate and tongue and the hyoid bone position. PASmin and U-MPW can still serve as reliable markers in upright lateral cephalometric radiographs for early detection of OSAS.

Identifiers

PMID40907537
PMCPMC13160627

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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.