CMT CMT Sleep Disorders & Bruxism 1

Question 1

What is the apnea-hypopnea index (AHI) and what does it measure?

Accepted Answer

The number of apnea and hypopnea events per hour of sleep

Answer

The AHI measures the average number of apnea (complete cessation) and hypopnea (partial obstruction) events per hour of sleep to classify OSA severity.

Question 2

Myofunctional therapy for sleep-disordered breathing is considered MOST effective for which patient population?

Accepted Answer

Adults and children with mild to moderate OSA and myofunctional dysfunction

Answer

Research supports myofunctional therapy primarily for mild to moderate OSA patients with identifiable oropharyngeal muscle dysfunction contributing to airway collapse.

Question 3

Sleep bruxism is characterized by which orofacial activity during sleep?

Accepted Answer

Rhythmic masticatory muscle activity (RMMA) causing tooth grinding or clenching

Answer

Sleep bruxism is defined by rhythmic masticatory muscle activity (RMMA) during sleep, manifesting as tooth grinding (bruxing) or clenching, often associated with micro-arousals.

Question 4

What is the connection between sleep bruxism and sleep-disordered breathing?

Accepted Answer

Bruxism episodes often follow micro-arousals triggered by airway obstruction events

Answer

Current evidence suggests bruxism episodes are frequently preceded by micro-arousals associated with airway obstruction, suggesting a protective mechanism to restore airway patency.

Question 5

A patient with sleep bruxism is referred to myofunctional therapy. Which component of therapy directly addresses the muscular contributors to bruxism?

Accepted Answer

Nasal breathing retraining and tongue posture exercises

Answer

Restoring nasal breathing, correct tongue posture, and reducing masticatory muscle hypertonicity through orofacial exercises directly targets the myofunctional contributors to sleep bruxism.

(CMT) Certified Myofunctional Therapist Practice Test

(CMT) Certified Myofunctional Therapist Practice Test

CMT CMT Sleep Disorders & Bruxism 1