Root canals without braces can be done again in a few years, but they should be well protected from eating hard things so that the tooth does not splinter. Teeth after root canal treatment need to be restored with crowns as soon as possible because the tooth becomes brittle after the nerve is taken out and eating hard things may cause the tooth to splinter. If the tooth is not too chipped, you can skip the crown restoration for a while after root canal treatment. But don’t chew hard when eating, especially nutty foods. If the tooth is a large area of missing, after root canal treatment need to be timely crown restoration. On the one hand, it can strengthen the retention and the filling material will not be easily dislodged, and on the other hand, it can protect the remaining tooth tissue. Therefore, braces should be worn as soon as possible after root canal treatment to avoid splitting of the tooth. A visit to the dentist is required.