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': 'Which of the following cements is most irritant to pulpal tissues? \nSelect and explain. \nA. Zinc phosphate, B. Silicate, C. Glass ionomer, D. Polycarboxylate', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Because of its high acidity, silicates were classifed as severe irritant. High acidity can irritate and sometimes lead to irreversible pulpal damage.\nRef: Mannapalli ed 3 pg 48', 'role': 'assistant'}]