Can a Tooth Infection Heal on Its Own?

A tooth infection may sometimes seem like it is improving on its own. The pain can lessen or even disappear completely, which leads many people to assume the problem has gone away.

However, tooth infections do not typically heal on their own.

According to the American Association of Endodontists (AAE), infections inside a tooth require dental treatment because the source of the infection cannot be eliminated by antibiotics or the body alone.

Why a Tooth Infection Doesn’t Heal on Its Own

A tooth infection begins when bacteria enter the inner part of the tooth (the pulp) through decay, a crack, trauma, or a failing restoration.

Once bacteria reach the pulp, they become trapped inside the root canal system. Because of this, the body cannot fully clear the infection without treatment.

Why Pain May Go Away

Tooth pain may temporarily improve if the nerve inside the tooth becomes damaged or dies.

Even if symptoms stop, the infection can still remain and continue to spread to the surrounding bone and tissues.

The AAE notes that the absence of pain does not mean the infection is gone.

The Bottom Line

A tooth infection will not typically heal on its own. Even if symptoms improve, the infection often remains until the source is treated.

If you are experiencing tooth pain or swelling, an evaluation with an endodontist can help determine the cause and prevent the infection from worsening.