Most ceramic implants have what toxicity profile?

• A. High toxicity
• B. Low toxicity
• C. Moderate toxicity
• D. Unknown toxicity

Answer: (B)

Ceramic implants are valued for their biocompatibility because they are chemically stable and inert in the body, which leads to minimal release of potentially toxic ions. Materials like zirconia and hydroxyapatite resist corrosion and interact with tissue without triggering significant cytotoxic or inflammatory responses, resulting in a low toxicity profile. That’s why the best choice is low toxicity. High toxicity would imply frequent harmful tissue reactions, which isn’t typical for these ceramics; unknown toxicity would ignore the extensive biocompatibility data available; and moderate toxicity doesn’t align with the consistently favorable tissue response seen with ceramic implants.