Discolored Teeth (Pulpitis)

Discoloration of teeth often suggests a history of blunt-force trauma to the tooth. When assessing tooth discoloration, it is crucial to differentiate between extrinsic (external) and intrinsic (internal) staining.

Extrinsic staining occurs on the outer surface of the tooth, typically caused by external factors or dentin exposure (which easily stains) due to enamel wear.

Intrinsic staining leads to discoloration from within the tooth, indicating past dental trauma resulting in internal bleeding. The breakdown products of blood within the tooth enter the dentin, manifesting as blue, pink, purple, and/or gray discoloration. This type of injury is most commonly observed in incisors and canine teeth. Clinically, it is important to note that over 92% of intrinsically stained teeth in cats and dogs are non-vital, posing a risk of deeper bone infection. Upon identification of discolored teeth, root canal therapy or extraction is recommended.