The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which dentifrices should be used for periodontal patients?   (A) Tooth powders with high abrasive content   (B) Tooth pastes with high abrasive content   (C) Tooth pastes with minimum abrasive content   (D) All of the above
['(C) Tooth pastes with minimum abrasive content <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Tooth powders with high abrasive content \n (B) Tooth pastes with high abrasive content \n (C) Tooth pastes with minimum abrasive content \n (D) All of the above <> possible answers', '  Which dentifrices should be used for periodontal patients? <> context@']