A smelly tooth or bad breath can be terrible thing to endure, and also to inflict on others! Whether you have noticed it yourself or it has gotten to the stage that someone else has commented, there are plenty of reasons why a tooth may smell bad.
Why do I have a smelly tooth?
1. The tooth has started to decay
If the tooth has stated to decay there are bad bacteria that are eating away at enamel (outside layer) and inner layers of the tooth. This is one of the most common causes of a smelly tooth. Decay is important to get fixed by a dentist before it gets worse!
2. The tooth is not clean and there is bacteria build up
If the tooth or gums are not clean there is bacteria on the tooth that can smell very bad. The bacteria will smell till you get the tooth cleaned well!