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': 'The process of removal of supporting bone to produce a positive gingival or osseous architecture is called as: \nSelect and explain. \nA. Spheroidizing, B. Scribing, C. Osteoplasty, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Scribing: It is an osseous resection technique, where high speed rotary instruments outline the radicular bone, which has\xa0to be removed by hand instrumentation.\nSpheroidizing (or parabolizing): It is the removal of supporting bone to produce a positive gingival or osseous architecture.', 'role': 'assistant'}]