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': 'Simple retraction of maxillary incisors using maxillary molars as anchorage is an example of: \nSelect and explain. \nA. Simple anchorage, B. Reciprocal anchorage, C. Stationary anchorage, D. Intermaxillary anchorage', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Dental anchorage in which the manner and application\xa0of force tend to displace the anchorage unit bodily in the\xa0plane of space in which the force is being applied is\xa0termed stationary anchorage. If a tooth can be grasped\xa0with an appliance in such a manner that any movement\xa0requires the tooth to move without any change in its\xa0axial inclination, this resistance is considerably greater\xa0than a tipping force. A good example of this type of anchorage is the retraction of maxillary incisors, using the first molars as the anchorage unit.', 'role': 'assistant'}]