Cracked Teeth


Cracked teeth is the presence of a crack(s) in a tooth that goes down to the dentine or even the pulp. It is most frequently occurred at the lower molars and upper premolars.

Photograph of an incisor with cracks on its tooth crown.
Photograph of a molar with crack on its tooth crown.
Photograph of a cracked teeth


A tooth may crack due to a crash or excessive stress, for example:

  • Always chewing on hard food or masticatory accidents, such as sudden bite on a piece of bone.
  • Excessive force on a tooth due to poor tooth alignment or biting problems.
  • Brittleness of teeth due to large filling or wear of tooth structure.
  • An accident, such as fall, traffic accident or sport injury.

    Photograph showing a fractured corner on one of the upper front teeth.
  • Brittleness of teeth due to undergone root canal treatment.
  • Severe tooth decay

    Photograph of a molar with severe tooth decay.
  • Habitual grinding or clenching of teeth.

Sign and symptom:

You may have sensitivity or sharp pain on eating, because when you bite down on a cracked teeth the pressure of biting causes the crack to open, the pulp inside the tooth may become irritated. However, the pain disappears quickly when you stop eating or chewing or use the other side of your mouth. At the initial stage, such problems occur occasionally, but if the crack extends into the pulp, pain may arise continuously.


  • Tooth becomes brittle.
  • Partial fracture or fracture of whole tooth may arise.
  • If a tooth is severely cracked e.g. vertical crack or crack extending beyond the pulp, it may need extraction.

Handling methods

If you suspect of having a cracked teeth, you should go to see your dentist as soon as possible. The dentist will determine which tooth is causing the problem and determine the best treatment for it.

Prevention of cracked teeth

  • Avoid chewing of hard foods e.g. nuts, hard candy, ice, bones, and shell, etc.
  • While you are eating, beware of foods mixed with bony fragments or sand. Chew your food gently, and do not hurry.
  • Chewing on both sides of your mouth, to avoid excessive stress on certain teeth.