What can rapidly traverse the dentin in sufficient concentrations to be cytotoxic?

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Study for the Biocompatibility of Dental Materials Test. Prepare with multiple choice questions and detailed explanations to ensure you're ready for your exam!

Multiple Choice

What can rapidly traverse the dentin in sufficient concentrations to be cytotoxic?

Explanation:
Dentin permits the rapid diffusion of small molecules through its tubules. Hydrogen peroxide, a common peroxide in whitening agents, is small enough to move quickly through dentin and can reach the pulp in concentrations high enough to cause cytotoxic effects on pulp cells via oxidative stress. Water and salts diffuse readily but are not cytotoxic at typical dental material concentrations, and proteins are too large to diffuse quickly through dentin.

Dentin permits the rapid diffusion of small molecules through its tubules. Hydrogen peroxide, a common peroxide in whitening agents, is small enough to move quickly through dentin and can reach the pulp in concentrations high enough to cause cytotoxic effects on pulp cells via oxidative stress. Water and salts diffuse readily but are not cytotoxic at typical dental material concentrations, and proteins are too large to diffuse quickly through dentin.

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