Supragingival calculus is typically black or dark brown

Supragingival calculus is typically black or dark brown. O True O False QUESTION 21 Your patient, Patricia Cake, is a 19 y.o. college sophomore. She came into the office reporting very painful gums, that seem to be retractable. When she was speaking, you noticed a peculiar, fetid, odor. Your exam reveals a grayish pseudomembrance, where ther should have been a papilla. No bone loss was observed on the radiographs. The likely diagnosis is: O A. Desquamative gingivitis O B. Chronic Periodontitis O C. Aggressive periodontitis O D. Necrotizing Ulcerative Gingivitis