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': 'Disorganized molecular surface layer of a highly polished metal produced by a series of abrasives of decreasing coarseness is called as: \nSelect and explain. \nA. Hybrid layer, B. Beilby layer, C. Hybroid layer, D. Smear layer', 'role': 'user'}, {'content': 'Answer: B \nExplanation: During the process of polishing, fine\xa0scratches and irregularities are\xa0filled in by the fine particles being removed from the surface.\nThis microcrystaline layer is referred to as Polish layer or Beilby layer. This was proposed by Sir\xa0George Thomas Beilby.', 'role': 'assistant'}]