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: Radiology
[{'content': 'In a patient with unerupted and impacted maxillary\ncanine, the following radiographic techniques will be ideal for localization: \nSelect and explain. \nA. IOPA and PNS view, B. Maxillary anterior occlusal view and IOPA, C. Bitewing and occlusal view, D. IOPA and occlusal view', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Typically, the occlusal radiograph is especially useful in the following cases:\u200b\n\nTo\xa0locate\xa0precisely\xa0roots\xa0and\xa0supernumerary,\xa0unerupted,\xa0and impacted teeth (this technique is especially useful for impacted \u200bcanines and third molars)\u200b.\nTo localize foreign bodies in the jaws and stones in the ducts of sublingual and submandibular glands\u200b.\nTo\xa0demonstrate\xa0and\xa0evaluate\xa0the\xa0integrity\xa0of\xa0the\xa0anterior, medial, and lateral outlines of the maxillary sinus\u200b.\n\nRef: ORAL RADIOLOGY Principles\xa0and\xa0Interpretation,Stuart C. White,Michael J. Pharoah Edition 7 page no 126', 'role': 'assistant'}]