Three years after root canal treatment, if the tooth does not show symptoms such as pain, looseness or fracture, it is possible to make crowns again.
Root canal treatment is one of the routine treatments in endodontics, due to the treatment process will remove the inflamed and necrotic pulp tissue, so the hard tissues of the tooth body lose the nutrients of the pulp and become brittle, and easy to fracture when withstanding large chewing force.
Therefore, after root canal treatment, it is recommended to see a doctor in time for prosthetic full crown restoration to effectively protect the dental tissues. If there is no pain, looseness or fracture after 3 years of root canal treatment, the tooth can still be restored with a denture crown to effectively prevent the tooth from experiencing the above symptoms, otherwise, the tooth should be treated symptomatically (e.g., root canal retreatment, extraction, etc.) and then restored at a later date.