Question 1

Why did my tooth turn grey after an injury?

Accepted Answer

Blood vessels inside the pulp rupture during impact. As red blood cells leak into the dentinal tubules and break down, iron compounds oxidize and stain the tooth grey from the inside — similar to a bruise under a fingernail. Grey discoloration usually signals that the pulp has died (pulp necrosis). Most grey traumatized teeth eventually need root canal treatment.

Question 2

Is a pink tooth after trauma an emergency?

Accepted Answer

Yes. A pink or reddish hue visible through the tooth usually signals internal resorption — where pulp tissue is actively dissolving the dentinal walls of the root from the inside. This progresses rapidly and can perforate the root. Call us the same day you notice a pink discoloration after trauma.

Question 3

Can a discolored tooth heal on its own?

Accepted Answer

Sometimes, in younger patients with wide canals and good blood supply, an early pinkish-red discoloration from fresh internal bleeding resolves. Grey and dark discoloration rarely reverses without treatment. Left untreated, a necrotic tooth can develop silent bone infection even without causing noticeable pain.

Question 4

Does root canal treatment fix the discoloration?

Accepted Answer

Root canal treats the underlying cause — necrosis or infection — but does not reverse existing staining. After a successful root canal, internal bleaching (walking bleach technique) can significantly lighten a grey tooth. We discuss both steps at the same consultation.

Question 5

How quickly should I see an endodontist if my tooth changes color after trauma?

Accepted Answer

Pink tooth: same day or within 24 hours — it is an endodontic emergency. Grey or dark tooth: within 1–2 weeks. Even without pain, a discolored traumatized tooth needs clinical evaluation, vitality testing, and X-rays to determine the correct next step.

Tooth Discoloration After Trauma: What Grey, Pink & Black Mean