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CC BY-NC-ND 4.0 · Sleep Sci 2023; 16(04): e381-e388
DOI: 10.1055/s-0043-1776870
Original Article

Condylar Position in the Treatment of Obstructive Sleep Apnea with a Mandibular Advancement Device: A Pilot Study

Marcela Gurgel
1   Department of Clinical Dentistry, School of Pharmacy, Dentistry and Nursing, Universidade Federal do Ceará, Fortaleza, CE, Brazil
2   Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, United States
,
Lucio Kurita 
1   Department of Clinical Dentistry, School of Pharmacy, Dentistry and Nursing, Universidade Federal do Ceará, Fortaleza, CE, Brazil
,
Cristiane Fonteles
1   Department of Clinical Dentistry, School of Pharmacy, Dentistry and Nursing, Universidade Federal do Ceará, Fortaleza, CE, Brazil
,
Thyciana Ribeiro
1   Department of Clinical Dentistry, School of Pharmacy, Dentistry and Nursing, Universidade Federal do Ceará, Fortaleza, CE, Brazil
,
Fabio Costa
1   Department of Clinical Dentistry, School of Pharmacy, Dentistry and Nursing, Universidade Federal do Ceará, Fortaleza, CE, Brazil
,
Benedito Freitas
3   Department of Clinical Dentistry, School of Dentistry, Universidade Federal do Maranhão, São Luis, MA, Brazil
,
Veralice Bruin
4   Department of Clinical Medicine, School of Medicine, Universidade Federal do Ceará, Fortaleza, CE, Brazil
,
Lucia Cevidanes
2   Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, United States
,
Cauby Chaves-Junior
1   Department of Clinical Dentistry, School of Pharmacy, Dentistry and Nursing, Universidade Federal do Ceará, Fortaleza, CE, Brazil
› Author Affiliations Funding The authors report that they have received no funding from agencies in the public, private, or non-profit sectors for the conduction of the present study.
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Abstract

Objective To evaluate, through a tomographic analysis, the positional changes of the condyle when using a mandibular advancement device (MAD) for the treatment of obstructive sleep apnea (OSA), and to assess if the condylar positions influence OSA polysomnographic patterns.

Materials and Methods Ten OSA patients underwent treatment with an MAD, and polysomnographic and tomographic examinations were performed before therapy (T0) and after MAD placement (T1).

Results By comparing the T0 and T1 measurements, we observed advancement and extrusion of the condyles in all patients (p < 0.001), as well as a decrease in the apnea-hypopnea index (AHI) (p < 0.001), increases in the mean (p = 0.001) and minimum (p < 0.001) oxyhemoglobin saturation, and a significant correlation between the anterior displacement of the right (p = 0.003) and left (p = 0.015) condyles.

Discussion Condylar advancement was directly correlated with OSA improvement: the greater the advancement, the better the AHI.

Keywords

obstructive sleep apnea - mandibular advancement - mandibular condyle - cone-beam computed tomography

Ethical Considerations

The present study was approved by the Human Research Ethics Committee of the Universidade Federal do Ceará, according to protocol number XX. All volunteers signed a free and informed consent form. The present study preserved patient data confidentiality and does not present any information that enables the identification of the volunteers.




Publication History

Received: 09 June 2022

Accepted: 23 January 2023

Article published online:
22 November 2023

© 2023. Brazilian Sleep Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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