How do dentists detect cavities? Cavities can be detected through various means, and the most common are clinical (physical) and radiographic (x-ray) examinations. During the clinical exam, a hand held instrument is used to search of cavities along the tooth surface.
If the instrument detects a dental cavity, it may have found weak tooth enamel damaged by acid. A visual examination can also reveal decay, since brown or black discoloration on a tooth can indicate a cavity.
Dental x-rays or check-ups or bitewing x-rays, are additional useful options for locating cavities between teeth or beneath the gum-line. These cavities can be almost impossible to detect visually. In some cases, a special disclosing solution is required to diagnose any suspicious areas on the tooth.
