Same case — what to do to prevent distal tooth resorption/further mobility from the attachment forces?

Correct answer: A. Splint #21 with #22

• A. Correct. Splinting #21 to the adjacent tooth (#22) distributes the torquing/distal forces generated by the RPD attachment across multiple teeth, reducing mobility and stress on the single abutment.
• B. Removing the attachment entirely would compromise the function/design of the existing prosthesis rather than addressing the force distribution problem.
• C. Converting to a complete denture is an overly drastic step rather than addressing the specific biomechanical issue with splinting.
• D. Adding clasps to unrelated adjacent teeth does not directly address the distal torque on the affected abutment as effectively as splinting it to the immediate neighbor.