How often should CBCT units be maintained?

• A. Annually
• B. Biannually
• C. Monthly
• D. Weekly

Answer: (A)

CBCT units are complex systems that need a thorough, hands-on check of safety, geometry, image quality, and software. The standard practice is to have a preventive maintenance visit once a year. A yearly service, performed by a qualified technician, verifies mechanical alignment, safety interlocks, dose indicators, detector calibration, software/firmware updates, and the condition of wear-prone parts, helping prevent drift in performance and ensuring patient safety. While daily or weekly quality assurance checks are important to monitor ongoing performance, the formal maintenance visit is typically scheduled annually. Some clinics may have different internal protocols, but annual preventive maintenance is the common standard.