There are different reasons behind teeth to break apart.
Gross decay, old metal fillings, an incorrect bite, and trauma are among the most important reasons.
To fix the tooth we should consider two important factors:
- If the nerve is healthy and intact or it has been root canal treated without re-infection.
- Whether the crack is or is not extended into the root of the tooth (beyond the bone level). If the nerve is involved (infected or dead) or the previously root canal treated tooth is re-infected, it is necessary to first address the issue then restore the tooth. If the fracture is either extended into the root or started in the root, the tooth is no longer salvageable and needs to be removed. In order to save a salvageable broken tooth we need to build the tooth up using some restoration material then prepare the tooth for crown.