Radiology Practice Test 2026 – Your All-In-One Guide to Exam Success!

Extraoral films are best used for orthodontics, or the study of the alignment and positioning of teeth. Orthodontic treatments often require images of the entire head or jaw, making extraoral films the ideal choice. Option B, the spreading of microorganisms, is incorrect as it does not pertain to the use of extraoral films. Option C, panoramic film, is not the same as extraoral films, although they are often used together in dental examinations. Option D, short wavelengths, may be associated with extraoral films, but it is not the best use for them.