Cavities Often Exist without Symptoms, Until They Become Serious
A large cavity may be accompanied by tooth pain. Rather than a continuous ache, pain from a cavity is typically spontaneous and may occur without an apparent cause. Sometimes, biting down can cause pain.
Sensitivity to Cold, Hot, or Sweet Foods
Decay can spread from the enamel to the inner portion of the tooth, exposing the nerves. This can make you more sensitive to fluctuations in temperature and certain foods.
Staining on the Tooth Surface
Changes in the appearance of your tooth can also indicate an issue. Brown, black, or white staining on the surface of any tooth may signify a cavity.