A.Oral health expert
a cavity can be fixed by placing a filling. A crown is not necessary if the tooth is not badly broken down. It is unlikley you have a cavity if the dentist on 2 occasions did not find anything. Floss will smell after you use it.
Bad breath is not always caused by a dental/oral problem.
If there is no such casue see your doctor- bad breath can be caused by a GIT/ throat condition
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.