What is the diff between sensitive teeth and cavities?

Yes: Decay is caused by bacteria. Sensitivity can be caused by decay and root exposure. Sometimes receding gums cause sensitivity.

Fine line: A tooth can have a cavity, and can be sensitive or not sensitive. A tooth can also have no cavities, and be sensitive. Gum recession, grinding your teeth, even a small chip (not a cavity) can cause sensitivity. A visit to your local dentist will give you the answers you seek, based on an examination of your mouth.

Sensitive vs Decay: The common causes of sensitive teeth are exposed tooth roots, receding gums or from a thinning of your tooth enamel. Dental cavities are permanently damaged holes in teeth caused by tooth decay. In some cases sensitive tooth can mean a cavity.