In an Anterior PA radiograph, how many arches are visible?

In an Anterior PA radiograph, how many arches are visible?

• A. One Arch
• B. Two Arches
• C. All Arches
• D. No Arches

Answer: (A)

In an anterior periapical radiograph, the setup is aimed at capturing the front portion of a single dental arch—either the maxillary or the mandibular anterior teeth. The field of view and projection are focused so that one arch fits within the image, with the other arch outside the area being imaged. That’s why only one arch is visible in this view. If you need both arches in one image, you’d use a different projection or take separate anterior periapicals for each arch.

In an anterior periapical radiograph, the setup is aimed at capturing the front portion of a single dental arch—either the maxillary or the mandibular anterior teeth. The field of view and projection are focused so that one arch fits within the image, with the other arch outside the area being imaged. That’s why only one arch is visible in this view. If you need both arches in one image, you’d use a different projection or take separate anterior periapicals for each arch.