Sleep Med Psychophysiol.  2011 Jun;18(1):29-34.

The Influence of the Amount of Mandibular Advancement in the Application of Mandibular Advancement Device for Obstructive Sleep Apnea Patients

  • 1Department of Oral and Maxillofacial Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.
  • 2Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Korea.
  • 3Department of Otorhinolaryngology, Seoul National University Bundang Hospital, Seongnam, Korea.


The purposes of this study were to estimate the effect of mandibular advancement device (MAD) and to evaluate the influence of the advancement amount of mandible in the application of MAD for obstructive sleep apnea (OSA) patients.
From the patients who were diagnosed as OSA by polysomnographic study at Seoul National University Bundang Hospital from January 2007 to February 2009, the patients who chose MAD as treatment option were included in this study. All the patients' data including clinical records and polysomnographic studies (both pre- and post-treatment) were reviewed and analyzed.
Successful results were obtained in 65 patients of 86 patients (75.6%). In the follow-up period, mild discomfort of anterior teeth or temporomandibular joint (TMJ) were described in 28 patients, especially in the cases the amount of mandibular advancement were more than 7.0 mm. There was no direct relationship between the amount of mandibular advancement and clinical outcome.
MAD was effective treatment option for the OSA patients regardless of severity. For the prevention of potential dental complications, the amount of mandibular advancement should be considered at the time of MAD treatment.


Obstructive sleep apnea; Mandibular advancement device; Temporomandublar joint; Complications
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