Chronic Bad Breath 4 Year Old With Chronic Bad Breath?

4 year old with chronic bad breath? - chronic bad breath

My daughter has chronic bad breath. We brush our teeth twice a day, but it does not seem to help. It is noteworthy at all times when she sits on my lap. Your teeth are clean. No cavities (one dentist for every visit 5 months). It smells like bad teeth, smells, just .... unfresh everyone can be informed or advised?