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': 'Polymerization shrinkage by volume was overcome by adding: \nSelect and explain. \nA. Fillers, B. Coupling agents, C. TEGDMA, D. All of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Advantages of adding fillers:\n\nReduces the coefficient of thermal expansion\nReduces polymerization shrinkage\nIncreases abrasion resistance\nDecreases water sorption\nIncreases tensile and compressive strengths\nIncreases fracture toughness\nIncreases flexure modulus\nProvides radiopacity\nImproves handling properties\nIncreases translucency\n\nRef: Textbook of Operative Dentistry, Nisha and Amit Garg, 3rd edition, Pg no:253', 'role': 'assistant'}]