In most cases it is advised because most teeth requiring root canals have had a tough life with a lot of tooth structure loss and weakened walls. In addition a root canal does hollow out the inner aspect of the tooth further weakening it but that is a necessary downside of the procedure. A crown is placed over the remaining tooth structure like a "cap on a fencepost" to support tooth structure externally.

Most of the time, yes.

Hi,

Thanks for your question. Most of the time it is. The reason is that teeth that need root canals have usually been through a lot. Fillings, decay, breakage, All of these things weaken the tooth. Usually these teeth need support and only a crown will give that. The exception is a front tooth with no damage but has had a trauma like getting knocked very hard. Sometimes those don’t require support because they are intact.

Hope this helps,

Dr Sondra Avant

After a root canal treatment (rct) the tooth tends to get brittle in the long run. If the opening access for rct is small, there may not be any need for a crown. Large defects due to decay will need a crown to maintain the integrity of the tooth.

Usually, it is. It depends on the circumstances. You can discuss it further with your dentist. The crown/cap protects the tooth so it doesn’t fracture and you don’t have to extract it.

It is usually necessary to have a crown after root canal because teeth that usually require root canals have existing large fillings and cannot be filled again. However, this is just a generalization. Teeth should be evaluated on a case by case basis to determine what is needed.

On a molar or premolar tooth, it is usually recommended to place a crown after a root canal. On the anterior teeth, sometimes it is optional.