Why a crown matters after root canal treatment: saving a fractured canine
Treated by Dr. Hyeonjoon Park


Why the patient came in
An upper canine (#23) had a root canal treatment done at another clinic but no crown, plus a large glass-ionomer filling from earlier gum-line wear. A crown was recommended at a check-up, but the patient chose to wait. Later the cheek side of the tooth broke off, leaving the tooth hollow.
What was done
- The patient preferred to keep the tooth rather than have an implant.
- The root canal treatment was redone.
- Because very little tooth structure remained, a core build-up was made to give the crown enough support.
- A crown was then fitted.


Published with the patient’s consent. Photos and X-rays are from the clinic’s records. Treatment plans and results differ for every patient; only an examination can show what is possible for you. A root-canal-treated tooth is more brittle, so a crown is usually advised. Retreatment can cause temporary tenderness.










