Cracked teeth are so common as to be practically ubiquitous. A tooth crack is not a disease but is instead a risk factor for further problems. Fractures tend to grow and change over time; therefore it is very important for dentists to screen for cracks and catch them early. The prognosis of cracked tooth that is not treated will progressively deteriorate and may evolve into a split tooth or result in severe periodontal defects. Eventually the tooth may be lost. Therefore, early diagnosis and treatment are essential in saving these teeth. This post discusses the ways to approach diagnosing and treating a cracked tooth.