Can Dentin Be Pink?
Yes, dentin can appear pink under certain circumstances. This pinkish hue is typically associated with a condition called internal resorption.
Internal resorption is a process where the inner parts of a tooth, including the dentin and pulp, are resorbed or dissolved. This resorption involves increased vascularity (blood vessel activity) in the affected area. The increased blood supply gives the tooth a pink discoloration, particularly noticeable in the crown. [Source: "Pink tooth" refers to a condition known as "internal resorption...]
Several sources corroborate this:
- Increased Vascularity: The pink color is a direct result of the increased blood vessels within the resorbing tissue replacing the dentin. [Source: "This pink discolouration is caused by the dentin being replaced internally by soft ('fibro-vascular') tissue..."]
- Crown Area: The pink discoloration is most often seen in the crown of the tooth. [Source: "Advanced internal resorption affecting the crown of teeth may result in the appearance of a 'pink tooth'..."]
- External Resorption Differentiation: The pink hue helps differentiate internal resorption from root caries (tooth decay). [Source: "ECR can be differentiated from root caries due to its pink hue..."]
Other Causes of Pink Discoloration (Less Common)
While internal resorption is the primary reason for pink dentin, other factors could contribute to a pinkish appearance, though these are less frequently the cause. Further investigation would be required to rule out other potential causes.
Important Note
A pink tooth should be examined by a dentist. The pink discoloration indicates an underlying issue requiring professional assessment and treatment.
