Snoring and sleep apnoea are conditions that affect breathing during sleep and may impact rest and overall well-being. Snoring occurs when airflow is partially restricted, causing tissues in the airway to vibrate. In some people, this may also be associated with a more complex breathing disorder known as sleep apnoea, where breathing pauses or becomes shallow during sleep.
Sleep apnoea can lead to disturbed sleep patterns and reduced oxygen levels in the body, affecting energy, alertness, and concentration. Because it can influence general health, identifying and managing the causes of disrupted breathing during sleep is important.
What Causes Snoring
Snoring happens when air moves through a narrowed airway, creating vibration in the tissues of the mouth and throat. This can be caused by several factors, including:
- Relaxation of throat muscles during sleep
- Nasal congestion or blockage
- Sleeping on the back, which can allow the tongue to move backward
- The shape of the soft palate or throat
- Body weight and tissue volume around the neck
- Alcohol or sedative use before bedtime, which relaxes airway muscles
Snoring varies in frequency and intensity from person to person. While occasional snoring may not indicate a health issue, ongoing snoring may suggest reduced airflow or the presence of obstructive sleep apnoea.
Understanding Sleep Apnoea
Sleep apnoea is a condition where breathing repeatedly slows or stops during sleep. The most common type is obstructive sleep apnoea (OSA), which occurs when the muscles at the back of the throat relax too much, narrowing or blocking the airway. Less commonly, central sleep apnoea involves the brain not sending proper signals to the muscles that control breathing.
When breathing pauses, oxygen levels in the blood can drop slightly, causing the body to briefly wake up to start breathing again. This may happen several times during the night, often without the person realising, which can lead to tiredness or poor-quality sleep.
Common Signs and Symptoms
The signs of snoring and sleep apnoea may vary but can include:
- Frequent snoring
- Pauses in breathing during sleep, often noticed by a partner
- Restless or disrupted sleep
- Waking up gasping or choking
- Dry mouth or sore throat upon waking
- Morning headaches
- Daytime tiredness or reduced concentration
- Feeling unrefreshed after sleep
Because symptoms can overlap with other conditions, professional assessment is recommended to confirm the cause.
How Dentists Can Assist
Dentists may notice signs that suggest possible breathing issues during sleep. During an examination, they might see signs such as tooth wear from clenching, marks along the tongue, or hear reports of disturbed sleep or tiredness.
Although only a sleep physician can diagnose sleep apnoea, dentists can help identify these signs and support coordinated care. In some cases, they may provide oral appliances that help keep the airway open while sleeping, as part of a broader treatment plan.
Oral Appliance Therapy
Oral appliances, also called mandibular advancement splints, are custom-fitted devices worn during sleep. They gently reposition the lower jaw forward, which helps to keep the airway open.
These appliances may be suitable for individuals with mild to moderate obstructive sleep apnoea or persistent snoring. They are lightweight, removable, and designed for comfort.



