Bad Breath (Halitosis)

What causes bad breath even after brushing?

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Short answer

Persistent bad breath after brushing is usually caused by bacteria trapped on the back of the tongue, between teeth, or under the gumline, areas a toothbrush alone doesn't fully clean. Other common contributors include dry mouth, gum disease, and certain foods or medical conditions.

About this answer: Prepared by the AllSmiles Dental Editorial Team for general information. Your dentist can advise you based on an examination and your individual needs.

Keep exploring

How is chronic bad breath treated?

Treatment depends on the cause: a professional cleaning to remove plaque and tartar, treatment for any gum disease present, or addressing dry mouth if that's the trigger. Because halitosis is often a symptom rather than a standalone problem, the dentist will usually look for and treat the root cause instead of just masking the odor.

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Does mouthwash actually cure bad breath?

Mouthwash can temporarily mask bad breath, but it doesn't treat the underlying bacteria buildup or gum issue causing it. Antibacterial mouthwash used alongside proper brushing and flossing helps manage odor, but it isn't a substitute for a dental checkup if the smell keeps coming back.

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