Dental radiographic technique and interpretation of common radiographic findings tested on the INBDE.
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- What does the acronym ALARA stand for in radiation safety?
- As Low As Reasonably Achievable
- What is the main purpose of the ALARA principle in dental radiography?
- To minimize patient and operator radiation exposure while still obtaining a diagnostic image
- In the paralleling technique, how is the film or sensor positioned relative to the tooth?
- Parallel to the long axis of the tooth
- In the paralleling technique, how is the x-ray beam directed?
- Perpendicular to both the tooth and the film
- What is the bisecting angle technique?
- A technique that directs the x-ray beam perpendicular to an imaginary line bisecting the angle formed by the tooth and the film
- What is the main disadvantage of the bisecting angle technique compared to paralleling?
- It produces more dimensional distortion of the image
- What radiographic error occurs when the vertical angulation is too steep?
- Foreshortening, the image appears shorter than the actual tooth
- What radiographic error occurs when the vertical angulation is too shallow?
- Elongation, the image appears longer than the actual tooth
- What causes a cone cut artifact on a radiograph?
- Misalignment of the x-ray beam so part of the film or sensor is not exposed
- Which radiograph type is best for detecting interproximal caries?
- The bitewing radiograph
- What does a panoramic radiograph capture in a single exposure?
- The entire maxillary and mandibular arches and surrounding structures
- What reference plane is used in cephalometric radiographic analysis of the facial skeleton?
- The Frankfort horizontal plane
- The ____ radiograph captures a wide area of the maxilla or mandible in one exposure, useful for locating impacted teeth or foreign bodies.
- occlusal
- Where does the mental foramen typically appear on a mandibular periapical radiograph?
- As a small radiolucent oval near the apices of the mandibular premolars
- What normal anatomical structure can be mistaken for a periapical lesion on mandibular premolar radiographs?
- The mental foramen