Can a Dead Tooth Turn Black?

Yes. A tooth that has lost its blood supply may gradually become gray, brown, or even appear black over time. While discoloration doesn’t always mean the tooth is dead, it’s an important sign that should be evaluated by a dentist.

What Is a Dead Tooth?

A “dead tooth” is a tooth whose pulp is no longer living.

The pulp contains:

• Nerves
• Blood vessels
• Connective tissue

If the pulp is damaged beyond its ability to heal, the tissue inside the tooth dies. This may happen because of deep decay, trauma, or a crack that allows bacteria to reach the pulp.

Why Does a Dead Tooth Change Color?

When the pulp dies, the blood supply to the tooth is lost.

Over time, the breakdown of blood cells and other tissue inside the tooth can stain the tooth from the inside.

As a result, the tooth may gradually become:

• Yellow
• Gray
• Brown
• Dark gray
• Nearly black

The color change often develops slowly over weeks, months, or even years.

Does a Black Tooth Always Mean the Tooth Is Dead?

No.

A dark tooth isn’t always a dead tooth.

Other possible causes include:

• Surface staining
• An old metal filling showing through the tooth
• Previous dental trauma
• Certain medications
• Internal bleeding after an injury

An examination and X-rays are needed to determine the cause of the discoloration.

Will a Dead Tooth Hurt?

Not always.

Some dead teeth are extremely painful while the nerve is dying.

Once the nerve has completely died, the pain may actually decrease or disappear—even though infection may still be present.

For this reason, the absence of pain doesn’t necessarily mean the tooth is healthy.

Can a Dead Tooth Become Infected?

Yes.

After the pulp dies, bacteria can multiply inside the root canal system.

Without treatment, this may lead to:

• A dental abscess
• Bone loss around the root
• Swelling
• Pain
• Eventual loss of the tooth

Prompt evaluation is important, even if the tooth isn’t causing discomfort.

Can a Dead Tooth Be Saved?

Often, yes.

If the tooth is structurally sound, root canal treatment can frequently remove the infected or dead tissue while allowing you to keep your natural tooth.

After the root canal, many back teeth are restored with a crown to help protect them from fracture.

Whether the tooth can be saved depends on the amount of remaining healthy tooth structure and the extent of any damage.

Can the Color Be Improved?

In many cases, yes.

Once the tooth has been properly treated, options for improving its appearance may include:

• Internal bleaching for selected teeth
• A dental crown
• A veneer in certain situations
• Tooth-colored bonding in limited cases

The most appropriate treatment depends on why the tooth changed color and the overall condition of the tooth.

When Should You See a Dentist?

Schedule an examination if you notice:

• One tooth becoming darker than the others
• A gray, brown, or black tooth
• A tooth that changed color after an injury
• Discoloration accompanied by pain or swelling

The earlier the cause is identified, the more treatment options may be available.

Our Total Oral Health Approach

At Total Dentistry, we look beyond the color of the tooth to determine why it changed.

If a tooth has darkened because the pulp has died, our goal is to treat the underlying problem—not simply improve the appearance.

By identifying the cause early, we can often preserve the tooth and recommend the most appropriate restorative treatment.

The Bottom Line

A dead tooth can gradually turn gray, brown, or even black as the tissue inside the tooth breaks down.

Although discoloration doesn’t always mean the tooth is dead, it should never be ignored.

If you’ve noticed that one of your teeth has become darker than the others, contact Total Dentistry to schedule an examination. We’ll determine the cause of the discoloration and recommend the treatment that’s best for your long-term oral health.