How To Know If You Have A Cavity In Your Front Teeth. Sometimes, a cavity will be visible as a brown or gray mark on the tooth. For adults, cavities in front teeth form for the same reasons and in the same way as cavities in any other part of the mouth.
Although a cavity can lead to tooth sensitivity, their causes and treatments are different. As the cavity progresses, you could feel pain even when you bite something soft. Use this chart to learn about the differences—and remember to see your dentist for an official diagnosis.
If you pay attention to tooth color, you can see decay starting with white spots and leading to light brown or gray tooth color.
This exposes the roots of your teeth to plaque. Back teeth may appear darker if a cavity is present, although there can be other causes of the darkness such as a large filling. In the early stages of a cavity, you may not notice any symptoms, but they will develop as the decay grows. This may be easy to spot if the cavity is on a front tooth.