Mouth breathing dries the lining of the mouth and reduces the protective effect of saliva. It may worsen morning odour, coating and the risk of tooth decay.
Possible causes
- a blocked nose and allergies,
- enlarged tonsils,
- habits and airway structure,
- sleep apnoea,
- sleeping with the mouth open.
What should you do?
Drink water, care for your nose as advised by a clinician, clean your tongue and do not merely mask the symptom with a rinse. Snoring, pauses in breathing and daytime sleepiness require consultation.
Read about dry mouth at night.
FAQ
Is mouth taping safe?
Not for everyone, especially with nasal obstruction or sleep apnoea. Have the cause assessed first.
Does oil pulling moisturise overnight?
Do not sleep with oil in your mouth.
