This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
[{'content': 'Which of the following is not a part of Marzouk’s classification? \nSelect and explain. \nA. Exploratory instruments, B. Non cutting instruments, C. Restoration instruments, D. Instruments to remove tooth structure', 'role': 'user'}, {'content': "Answer: B \nExplanation: G.V. Black among his many contributions to modern dentistry, is credited with the first acceptable nomenclature for and classification of hand instruments. His classification system enabled both dentists and manufacturers to communicate more clearly and effectively in regard to instrument design and function.\nHand instruments used in the dental operatory may be categorized as:\n\nCutting (excavators, chisels\xa0and others).\xa0\nNoncutting (amalgam condensers, mirrors, explorers, probes).\n\nMarzouk classified instruments of operative dentistry into:\n\nThose used for exploration.\nThose used for removal of tooth structure.\nThose used for restoration of teeth.\n\nRef: Sturdevant's art and science of operative dentistry. 4th edition page 310\n\xa0 \xa0 \xa0 \xa0Operative dentistry modern theory and practice Marzouk page 57", 'role': 'assistant'}]