Which of the following is NOT considered a primary concern for implanted biomaterials?

• A. Cellular Response
• B. Tissue Remodeling
• C. Infection Potential
• D. Electrical Conductivity

Answer: (D)

The main concept tested is how the body responds to an implanted biomaterial. The most important concerns are how cells react to the material (biocompatibility, inflammatory response), how surrounding tissue remodels and integrates with the implant (bone-implant bonding and long-term stability), and the risk of infection associated with the implant (biofilm formation, sterilization effectiveness). Electrical conductivity is not a universal requirement for most implanted biomaterials; it becomes relevant mainly for devices that need to sense or deliver electrical signals, such as neural or cardiac electrodes. For typical orthopedic implants, the priority is achieving good tissue response and minimizing infection, not electrical conductance.