A perforation is a hole in the crown or root of the tooth that can occur naturally as a result of internal or external resorption. A perforation can also be caused by excessive tooth structure removal during root canal preparation. Perforation repair, followed by root canal therapy can often save the tooth. Below are some clinical examples of perforation repair completed by Dr. Harmon.
Below is tooth #22 with internal resorption leading to mid-root perforation. After successfully repairing the perforation and completing root canal therapy, the tooth was saved.
In the case below, the patient was referred for perforation repair and root canal re-treatment of tooth #14. After successfully repairing the perforation and re-treating the previous root canal, the tooth was saved.