Related Experiment Video
Updated: Aug 12, 2026

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
Mandibular posture during sleep in patients with obstructive sleep apnoea
K Miyamoto1, M M Ozbek, A A Lowe
1Department of Oral Health Sciences, Vancouver Hospital and Health Sciences Centre, The University of British Columbia, Canada.
Patients with obstructive sleep apnea (OSA) exhibit significantly more mandibular opening during sleep compared to healthy individuals. This jaw opening increases during apnea events and decreases upon resolution.
Area of Science:
- Sleep Medicine
- Respiratory Physiology
- Dental Sleep Medicine
Background:
- Vertical mandibular posture is theorized to impact upper airway dimensions.
- Mouth opening, linked to jaw movement, can affect pharyngeal airway patency.
Purpose of the Study:
- To investigate the relationship between mandibular posture and obstructive sleep apnea (OSA).
- To determine if mandibular position correlates with the onset or cessation of apneas.
Main Methods:
- Intraoral magnet sensor used to record vertical mandibular position during polysomnography in seven OSA patients.
- Measurements taken in both supine and lateral recumbent positions.
- Analysis of mandibular posture during different sleep stages and in relation to apneas.
Main Results:
- Patients with OSA spent significantly more sleep time (69.3%) with mandibular opening >5 mm compared to healthy adults (11.1%).
- Sleep stage influenced mandibular posture in the supine position, but not when lateral.
- During non-rapid eye movement sleep, mandibular opening increased during apneas and decreased upon their termination.
Conclusions:
- Vertical mandibular posture is more open during sleep in individuals with OSA.
- Mandibular opening dynamics correlate with the occurrence and resolution of apneas, particularly in non-REM sleep.
More Related Videos
04:33Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder
Published on: April 26, 2024
04:53Acupoint Application Combined with Ear Plaster Therapy for Treating Sleep Disorders with Acute Exacerbation of Chronic Obstructive Pulmonary Disease
Published on: October 18, 2024
Related Concept Videos
Anatomical Positions
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
REM Sleep Behavior Disorder
RBD is significantly associated with...
Sleep Apnea
The condition is more prevalent among...
Cardiopulmonary Resuscitation II: ACLS Airway Management