Temporary bad breath may follow certain foods. Persistent bad breath can be linked to bacteria on the tongue and teeth, gum disease, decay, dry mouth or another health condition.
This content is general information, not a personal diagnosis or treatment recommendation. A dental examination is needed for individual symptoms.
Seek prompt professional assessment if bad breath occurs with severe tooth pain, facial swelling, fever, difficulty swallowing or a mouth sore that does not heal.
Causes inside the mouth
Food trapped between teeth, tongue coating, gum disease, cavities, poorly cleaned dentures and dry mouth are common causes. Smoking also contributes to odour and gum problems.
What can you do daily?
Brush twice daily with fluoride toothpaste, clean between teeth every day, clean the tongue gently and care for dentures as directed. Sugar-free gum may support saliva flow for some people.
Is mouthwash enough?
Mouthwash may mask odour temporarily but does not remove the cause. If odour persists despite good care, see a dentist first; if the mouth is healthy, medical assessment may be appropriate.