Final answer:
It is true that some registered dental assistants have radiography qualifications while others do not, depending on their training and the regulations of the location they work in.
Step-by-step explanation:
True: There are indeed both registered dental assistants with radiography qualifications and those without. Training options for radiography technicians include certificates, associate's degrees, or bachelor's degrees, and the type of qualification may vary by employer and state regulations. Radiography technicians can find employment in various healthcare settings such as hospitals, doctors' offices, or specialized imaging centers. The specific certification requirements for dental assistants to perform radiographic procedures can differ from one location to another, but generally, there is an option to become a registered dental assistant with additional radiography qualifications.