How can you differentiate internal resorption from external resorption on radiographs, and how does this influence treatment?

How can you differentiate internal resorption from external resorption on radiographs, and how does this influence treatment?

• A. Internal resorption appears centered within the canal space; external resorption follows the external root surface; treatment differs.
• B. Internal resorption appears along the outer surface of the tooth.
• C. External resorption appears centered within the canal space.
• D. Resorption type has no impact on treatment decisions.

Answer: (A)