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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following liners when exposed to oral fluids result in diminishment of their antimicrobial effectiveness?
assistant
The correct answer is  MTA and calcium hydroxide undergo a transformation of hydroxide to calcium carbonate from exposure to carbon dioxide in the blood and oral fluids, causing their antimicrobial effectiveness to diminish.