What is a cracked tooth or cracked tooth syndrome?
Some teeth have cracks that are too small to show up on x-rays. Sometimes the cracks are under the gumline. Cracked tooth syndrome is most common in the back teeth (the molars) because these teeth absorb most of the forces of chewing. Teeth with large fillings may be more likely to crack, as are teeth that have undergone root canal treatment and have not been restored with a crown. Many people with a cracked tooth may have symptoms for months before a definitive diagnosis can be made.
