If the tooth has undergone root canal treatment and is eligible for restoration, it is recommended to have braces to protect it. Whether or not to do braces after root canal treatment can be considered according to the individual’s financial situation, psychological factors and other discretionary considerations. The purpose of root canal treatment is to remove the inflammation in the root canal and protect the periapical tissues; the purpose of braces is to maintain the effect of root canal treatment, to protect the strength of the tooth and to better perform the oral function. If you don’t want to do braces, the possibility of falling or fracturing is relatively high, and it is best not to bite hard objects with this side of the tooth. As there is no nerve or pulp support after root canal treatment, it may lead to lack of nutrition and increased brittleness of the tooth, which is more likely to be damaged, and braces can protect the tooth. You need to pay attention to your personal dental care after having a root canal to avoid excessive biting force.