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': 'According to Finn, the best method of brushing for mixed dentition: \nSelect and explain. \nA. Scrub, B. Vertical, C. Fones, D. Vibratory', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The four basic methods of tooth brushing\xa0are:\n\nHorizontal reciprocating (Scrub method)\nVertical sweeping (Roll and physiologic methods)\nCircular (Fones method)\nVibratory (Charters, Bass and Stillman methods)\n\nKey Concept:\nBrushing Technique used commonly in children\xa0\nThe circular brushing method or Fone’s technique is a natural brushing method to use with young children who want to do their own brushing, but do not have the muscle development for techniques that require more co-ordination.', 'role': 'assistant'}]