How to Tell if You Have Bad Breath

This causes bacteria to build up in your mouth and this leads to bad breath. Dry mouth may be caused by some medicines, by salivary gland problems or by continually breathing through your mouth instead of your nose. Older people may produce less saliva, causing further problems. If you suffer from dry mouth, your dental team may be able to recommend or prescribe an artificial saliva product. Or they may be able to suggest other ways of dealing with the problem.