Grey is a bruise colour, and in a baby tooth it usually means the knock damaged the soft pulp inside. It tends to appear a week or more after the fall, not on the day. Some of these teeth lighten again, many stay grey without causing any trouble, and a smaller number become infected later, so a dental check and follow-up are worthwhile even when your child seems fine.
We cover this in full in grey baby tooth after a bump or fall, including how the colour changes over time, the warning signs of infection and what review visits involve.
If the tooth was knocked out, see our article on an avulsed baby tooth. For dark teeth that have nothing to do with an injury, our guide to a child's tooth turning black or grey looks at other causes such as decay and staining.
Our dentists can check a discoloured tooth and plan follow-up visits. Book through our general dentist page or see current deals for new patients.
