Which of the following is NOT a current use of 3D printing?

• A. Prosthetics
• B. Surgical planning models
• C. Bioprinting organs/tissues
• D. Medical devices

Answer: (C)

The main idea is that 3D printing is now routinely used for tangible, patient-specific medical things, while printing living tissues or organs is still mainly in the research realm. Prosthetics can be customized to fit individuals, surgical planning models help surgeons rehearse and plan complex operations, and certain medical devices and guides are produced to improve precision and outcomes. Bioprinting organs and tissues, while actively researched, has not yet become a standard clinical practice because creating functional, vascularized organs or tissues that can safely integrate with a patient’s body remains a significant challenge. That gap is why bioprinting organs/tissues is the correct answer as not a current use.