Dental To prevent dislodgement of abutment in distal extension RPD, it is required to have a: A Positive denture base - tissue relationship B Stress breaker C Indirect retainer D Multiple clasping 💡 Explanation To prevent dislodgement of abutment in distal extension RPD, it is required to have a: ✓ Correct Answer: A. Positive denture base - tissue relationship