Radiographic TechniqueQuestion 47 of 100
The dentist orders a posterior bitewing survey on an adult with all posterior teeth present and closed contacts. How many images are typically taken?
a.One image centered on the midline
b.Two images, one per arch
c.Four images, premolar and molar on each side
d.Twelve images covering every posterior tooth individually
Explanation
A standard adult posterior bitewing survey consists of four images: a premolar and a molar view on each side, which together show interproximal surfaces and crestal bone. A single midline image cannot open posterior contacts. One image per arch is not how bitewings work, since each bitewing records both arches, and twelve images would deliver unnecessary radiation.
Law Reference: FDA/ADA Dental Radiographic Examinations: Recommendations for Patient Selection and Limiting Radiation ExposurePractice all 100 questions free — no signup required.
Related questions on this topic
- A panoramic image shows a blurred radiopaque shape on the opposite side of the arch, higher than the real object. What is this artifact and how is it prevented?
- A child with a suspected fractured anterior alveolus cannot tolerate periapical placement. Which projection shows a broad view of an entire arch on a single large receptor?
- When taking a maxillary molar periapical with the paralleling technique, where should the receptor be positioned?
- Which routine quality-assurance test lets an office detect gradual changes in processing solutions before image quality suffers?
- An image of an elderly patient shows the entire radiograph blurred, with no sharp outlines anywhere. What is the most likely cause?
- Using the bisecting technique, how does vertical angulation differ between maxillary and mandibular projections?
Last reviewed: · editorial process
PrepPass Editorial Team · Verified against DANB Radiation Health & Safety (RHS) + Infection Control (ICE) Exams · How we review