What Your Dentist Can Spot About Your Sleep

Dentists see the inside of your airway more often than any other clinician. Several signs of sleep-disordered breathing show up during a routine exam.

July 2, 2026 · 5 min read · Dr. Nicki Tajalli, D.D.S.

The signs we look for

Heavily worn teeth from nighttime grinding, a scalloped tongue border, a large tongue relative to the arch, enlarged tonsils, a narrow palate, and chronic dry mouth from mouth breathing.

Why grinding and apnea travel together

Clenching often occurs as the body's response to an airway obstruction during sleep. Treating grinding without evaluating the airway can miss the underlying driver.

Oral appliance therapy

For diagnosed mild to moderate obstructive sleep apnea, or for patients who cannot tolerate CPAP, a custom mandibular advancement device holds the lower jaw forward to keep the airway open. Diagnosis comes from a physician and a sleep study, not from us.

Key takeaways

  • Grinding can be an airway symptom.
  • Oral appliances are an alternative for CPAP-intolerant patients.
  • Diagnosis requires a physician-ordered sleep study.

This article is general information, not a diagnosis. Your situation deserves an exam.