In which phase of sleep, does the bruxism occur?
Correct Answer: NREM 2
Description: Bruxism occurs in both stage I and stage II. But more common in stage II.
Note: OSA is not associated with a reduction in total sleep time, but individuals with OSA experience a much greater time in stage 1 NREM sleep (from an average of 10% of total sleep to 30–50%) and a marked reduction in slow-wave sleep (stages 3 and 4 NREM sleep). The pathophysiology of OSA includes both a reduction in neuromuscular tone at the onset of sleep and a change in the central respiratory drive.
Reference: Ganong’s Review of Medical Physiology T W E N T Y - F I F T H E D I T I O N page no 276
Category:
Physiology
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