CMT CMT Sleep Disorders & Bruxism

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

Tongue thrust frequency per hour of sleep

Answer

Oxygen desaturation percentage during sleep

Answer

Duration of REM sleep per night

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

Adults with severe OSA requiring high-pressure CPAP

Answer

Patients with central sleep apnea

Answer

Patients whose OSA is purely positional

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

Involuntary tongue thrusting

Answer

Soft palate vibration causing snoring

Answer

Jaw dropping open during deep sleep

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

They are unrelated conditions

Answer

Bruxism causes sleep apnea

Answer

Sleep apnea causes bruxism through CPAP use

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

Bite splint fabrication

Answer

Sleep hygiene counseling

Answer

Dietary modification

Question 6

Which symptom is NOT a classic daytime consequence of untreated obstructive sleep apnea?

Accepted Answer

Increased salivation

Answer

Excessive daytime sleepiness

Answer

Morning headaches

Answer

Difficulty concentrating