CMT CMT Sleep Disorders & Bruxism 2

Question 1

Which study is frequently cited as landmark evidence for myofunctional therapy's role in reducing OSA severity?

Accepted Answer

Guimarães et al. 2009

Answer

Guimarães et al. (2009) published an RCT demonstrating that oropharyngeal exercises significantly reduced AHI by approximately 39% and snoring in adults with moderate OSA.

Question 2

What does polysomnography (PSG) measure and why is it relevant to myofunctional therapists?

Accepted Answer

It is the gold-standard sleep study measuring EEG, airflow, oxygen, and muscle activity to diagnose sleep disorders

Answer

Polysomnography is the gold-standard overnight sleep study that diagnoses OSA and bruxism; myofunctional therapists use PSG results from referring providers to guide treatment and measure progress.

Question 3

In children with enlarged tonsils and OSA, myofunctional therapy is typically recommended:

Accepted Answer

After adenotonsillectomy to address residual muscle dysfunction

Answer

Myofunctional therapy is most commonly recommended post-adenotonsillectomy to retrain tongue posture, nasal breathing, and swallowing patterns that often persist as habits after the obstruction is removed.

Question 4

Which muscle group's weakness is MOST directly implicated in posterior airway collapse during sleep?

Accepted Answer

Genioglossus and pharyngeal dilator muscles

Answer

The genioglossus and pharyngeal dilator muscles are responsible for maintaining airway patency during sleep; their insufficient activation during sleep leads to posterior airway collapse in OSA.

Question 5

What is 'positional OSA' and how does it differ from non-positional OSA in terms of myofunctional therapy candidacy?

Accepted Answer

Positional OSA is predominantly worse in supine sleep and may require primarily positional therapy, while non-positional benefits more from oropharyngeal exercise

Answer

Positional OSA is predominantly triggered by supine sleeping and may respond to positional therapy alone, while non-positional OSA has greater muscle-based contributions that benefit more from myofunctional intervention.

(CMT) Certified Myofunctional Therapist Practice Test

(CMT) Certified Myofunctional Therapist Practice Test

CMT CMT Sleep Disorders & Bruxism 2