A cavity is basically a hole that forms in the tooth because of bacterial activity that produce acids causing the hard portion of the tooth to decay.

Following are the signs that you may have a tooth cavity.

1. Food lodgement

In case you are annoyed by that one area in your mouth where food gets stuck; especially those fibrous bits, then its highly likely that you have a cavity.

2. Sensitivity

Well not all sensitive teeth will have cavities, but there are high chances that a tooth is sensitive because of a cavity. Its only when the cavity has become big enough or rather deep enough to reach beyond the outer enamel of the tooth will the tooth be sensitive.

3. Black spots

Black lines or spots or a grey area on the tooth can all mean that there is cavity in that tooth. Some might be superficial than others, but there are very few times that you will see a black or grey area on the tooth which is not a cavity.

4. Pain

Severe pain in the tooth or jaw is almost always because of a cavity.

5. Nothing at all

Most of the time cavities go unnoticed because there will be no visible or tangible signs. That is where a professional’s trained eye and X-ray imaging comes handy.