The following are multiple choice questions (with answers) about medical knowledge.   **Question:** For deep gingival sheath preparation, shape of wedge should be:   (A) Round   (B) Triangular   (C) Square   (D) All of the above
['(B) Triangular <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Round \n (B) Triangular \n (C) Square \n (D) All of the above <> possible answers', '  For deep gingival sheath preparation, shape of wedge should be: <> context@']