How long does a root canal last without a crown?

While a root canal removes the infected pulp and nerve, leaving the tooth without a protective crown may make it susceptible to fractures or additional decay. 

The longevity of a root canal without a crown can depend on several factors, like tooth's location, the extent of the initial damage, and oral hygiene practices.

If the tooth was extensively damaged or weakened before the treatment, it may be more prone to fracture.

Teeth located in the back of the mouth (molars and premolars) experience more chewing forces, which can put additional stress on the tooth. These teeth are more susceptible to fractures without the protection of a crown.

Certain habits like teeth grinding (bruxism) or clenching can exert excessive pressure on the teeth, increasing the risk of fractures.

So if you have root canal without crown in front teeth and good tooth structure then it may last long.

But if your root canal teeth is front and very damaged tooth structure then it will fracture any time. 

Root canal teeth in back teeth requires crown immediately otherwise it won't last long 

According to a 2004 study, the survival rate for root canal without a crown was 96% after one year, 88% after two years, and only 36% after five years. 

It shows that a fill can help the tooth survive for a few years, but is likely to fail soon. When deciding between fillings and crowns, there are three major factors to consider: 

• The tooth’s remaining natural structure
• The tooth’s position in the mouth
• The tooth’s function