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': 'Glass reinforced composite is used in all of the following except ? \nSelect and explain. \nA. Obturation of young permanent teeth, B. Splinting of teeth, C. Space maintainer, D. Used in intra-post cementation of endodontically treated tooth', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]