Understanding the two types of feline tooth resorption is essential for selecting the treatment approach that eliminates pain and prevents recurrence with minimal invasiveness.
Feline tooth resorption type classification translates directly into welfare-optimal treatment decisions. A Type 1 tooth treated by crown amputation leaves a root tip that remains innervated and painful — the extraction appears complete visually but leaves the source of pain in place. The welfare harm of misclassified treatment can persist for years as chronic undetected dental pain. Type 2 teeth with complete root replacement can be treated by crown amputation with dental radiographic confirmation of root replacement — this less invasive procedure is appropriate specifically because the roots are no longer vital tissue. Dental radiography at every tooth extraction allows correct classification and treatment selection. Veterinary practices that perform extractions without dental radiography are providing suboptimal welfare care regardless of the apparent technical quality of the extraction itself.