What characterizes stage 4a of feline tooth resorption?

Stage 4a of feline tooth resorption is characterized by the involvement of both the crown and root of the tooth. This stage indicates a more advanced level of resorption, where changes are clearly visible in both the visible part of the tooth and the portion embedded in the jawbone. This level of resorption is significant as it may lead to tooth loss and discomfort for the cat, necessitating appropriate veterinary intervention.

In this stage, the changes involve not just the enamel but also the dentin and root structure, highlighting the severity of the condition. The fact that both the crown and root are affected underscores the importance of early detection and treatment in managing dental health in cats.

Understanding this helps delineate the progression of tooth resorption and aids in providing appropriate care and treatment options, ensuring better outcomes for affected animals.