Evidence map›Paper›PMID 31401736›Full record

ArticleSleep & breathing = Schlaf & Atmung2020

The impact of oral appliance therapy with moderate mandibular advancement on obstructive sleep apnea and upper airway volume.

Riitta Pahkala, J Seppä, R Myllykangas, J Tervaniemi, V M Vartiainen, A L Suominen, A Muraja-Murro

Open access · hybridAbstract read
In one paragraph

Article in Sleep & breathing = Schlaf & Atmung, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 19% of its field
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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Polysomnographic phenotypes: predictors of treatment response in Obstructive Sleep Apnea with Mandibular Advancement devices.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
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  10. Evolution of adherence and self-reported symptoms over 36 months with mandibular advancement device therapy for obstructive sleep apnea: a retrospective study.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2024
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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

7 authors at 2 institutions in 1 country.

Riitta PahkalaDepartment of Oral and Maxillofacial Diseases, Kuopio University Hospital, P.O. Box 100, 70029, Kuopio, Finland. riitta.pahkala@kuh.fi.ORCID http://orcid.org/0000-0003-1971-8066
J SeppäHead and Neck Center, Kuopio University Hospital, Kuopio, Finland.
R MyllykangasInstitute of Dentistry, Department of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland.
J TervaniemiDepartment of Clinical Radiology, Kuopio University Hospital, Institute of Dentistry, Oral and Maxillofacial Radiology, University of Eastern Finland, Kuopio, Finland.
V M VartiainenDepartment of Clinical Radiology, Kuopio University Hospital, Institute of Dentistry, Oral and Maxillofacial Radiology, University of Eastern Finland, Kuopio, Finland.
A L SuominenDepartment of Oral and Maxillofacial Diseases, Kuopio University Hospital, P.O. Box 100, 70029, Kuopio, Finland.
A Muraja-MurroDepartment of Clinical Neurophysiology, Diagnostic Imaging Center, Kuopio University Hospital, Kuopio, Finland.
University of Eastern Finland · FIKuopio University Hospital · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo find out if a moderate protrusion with a mandibular advancement device (MAD) can significantly increase the upper airway volume and, further, what signs and symptoms of obstructive sleep apnea (OSA) can be improved by this maneuver.

methodsThere were 58 adults diagnosed with OSA who were referred for MAD therapy. The mean apnea-hypopnea index (AHI) was 19.2 (SD 8.6). Five indicators of signs and symptoms of OSA (AHI, oxygen saturation, snoring, daytime sleepiness, and health-related quality of life) were evaluated at the baseline and after 6 months of MAD therapy. Nasal resistance and airway volume and cross-sectional areas with and without the MAD in situ were recorded. Based on AHI reduction, the treatment response was classified as complete, partial, or non-complete. Statistical analyses included the chi-square, t tests, Mann-Whitney U tests, and regression analyses (linear and logistic).

resultsTwenty-three patients attained a complete response (residual AHI < 5 events/h) to MAD therapy. In 13 subjects, the response was partial, and in 9 patients, it was non-complete. The complete responders were significantly younger, and they had a deeper overbite than partial/non-complete responders. A convex profile associated positively, but a vertically restricted throat and increased lower facial height associated negatively with the increase in airway volume.

conclusionsExcellent MAD therapy outcomes were achieved in most patients. Only age and deep bite had some influence on AHI reduction, indicating multifactorial nature in the response to MAD therapy.

Indexed as

AdultFemaleFollow-Up StudiesHumansMaleMandibular AdvancementMiddle AgedOrthodontic AppliancesPolysomnographyQuality of LifeSleep Apnea, ObstructiveSnoringSupine PositionTreatment OutcomeApnea-hypopnea indexCBCTMandibular advancement deviceObstructive sleep apneaUpper airway volume

Identifiers

PMID31401736
PMCPMC7426308
OpenAlexW2967379460

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.