300 Wellington Street East, Aurora, ON L4G 1J5 I (905) 727-7043

When You Sleep (and snore, and grind your teeth)

January 22, 2019


There’s a lot that goes on when a person goes to bed and falls asleep. We know that sleep is good for our health, and we know that it impacts our moods, hormone levels and weight. Otherwise most of us have no idea what the body gets up to while we’re at rest. Much of what goes on is positive, but there are many sleep disorders that can have a negative impact on our health.

Common Sleep disorders

Sleep disorders are common across much of the population. One that is particularly prevalent, and can have a serious impact on the health of the body, is sleep apnea. Sleep apnea is when nighttime breathing becomes shallow, and stops for a moment before resuming, often with a loud snort or jerk.

Types of Sleep Apnea

There are main types of sleep apnea, including:

Obstructive sleep apnea

the disorder’s most common form occurs when throat muscles relax and the airway becomes partially obstructed, making it harder to draw air into the lungs.

Central sleep apnea

this less common variation happens when your brain doesn't send proper signals to the muscles that control breathing.

Complex sleep apnea syndrome

this most dangerous form of the disorder, also known as treatment-emergent central sleep apnea, occurs when symptoms pair signs of obstructive sleep apnea and central sleep apnea.

Sleep Apnea Symptoms

Individuals experience sleep apnea symptoms for themselves, or have them reported by a partner or housemate:

  • Loud snoring
  • Gasping for air during sleep
  • Awakening with a dry mouth
  • Morning headache
  • Difficulty sleeping (insomnia)
  • Excessive daytime sleepiness (hypersomnia)
  • Inattentiveness
  • Irritability


Snoring during sleep may be a sign of obstructive sleep apnea. While not proof of the disorder, persistent loud snoring is a convincing signal. Snoring happens when air moving through the airway during sleep is obstructed, causing the respiratory structures to vibrate. Snoring is sometimes soft and gentle, but in most cases it's loud and unpleasant. If a partner or housemate insists that your snoring is particularly bad, get checked out by your doctor.

Bruxing (Bruxism)

Bruxing, a symptom of bruxism, is when we grind our teeth together. Bruxism is most prevalent with adults at night, though as we age we’re more likely to brux during the day. Bruxism is another common disorder, with up to 30% of the entire population grinding their teeth chronically at some point in their lives. The problem with bruxism? Our muscles of mastication (chewing muscles) can exert as much as 250 lbs per square inch of pressure when clenched. This makes for wear on the teeth that can lead to tooth sensitivity, gummy smiles (tooth recession), root canals and in severe cases, tooth loss (as you can see in the case below). Worse still, because bruxing often happens while we sleep, there isn’t much we can do to control it. Patients with severe bruxism must wear a night guard to protect against tooth wear. Otherwise, rehabilitating and restoring severely worn teeth is complicated and costly. Below is an example of a worn case that was treated in our office. Although treatment can be done, it’s much easier to prevent than treat. Ok, fine, we know about a few sleep disorders, but what’s the hook?

The Link Between Sleep Disorders

Research shows a relationship between momentary microarousals at night. These are caused by low amounts of oxygen getting to the brain (i.e. sleep apnea and snoring), and periods of night time grinding (i.e. bruxism). The latter occurs because of spasms in the muscles of mastication that move the jaw forward in a subconscious attempt to open the airway to deliver more oxygen to the brain. Knowing that you may brux at night (waking up with a tight, sore jaw), and being aware of potential sleep apnea symptoms (snoring, among other primary symptoms) can point to a serious problem. If you aren’t sure whether you brux or not, ask your dentist. He or she can look at the wear patterns your teeth, and let you know if bruxism is a possibility. If you snore at night, ask your doctor to refer you to a sleep clinic so that you can rule out sleep apnea. Paired together, sleep apnea and bruxism can be far more serious than a bit of tooth wear. Being intentional about self monitoring for symptoms of these disorders (as well as accepting a bit of criticism on your nighttime habits) may have a very real impact on your health.




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Aurora, ON L4G 1J5


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