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?
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As Low As Reasonably Achievable- What is the main purpose of the ALARA principle in dental radiography?
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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?
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Parallel to the long axis of the tooth- In the paralleling technique, how is the x-ray beam directed?
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Perpendicular to both the tooth and the film- What is the bisecting angle technique?
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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?
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It produces more dimensional distortion of the image- What radiographic error occurs when the vertical angulation is too steep?
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Foreshortening, the image appears shorter than the actual tooth- What radiographic error occurs when the vertical angulation is too shallow?
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Elongation, the image appears longer than the actual tooth- What causes a cone cut artifact on a radiograph?
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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?
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The bitewing radiograph- What does a panoramic radiograph capture in a single exposure?
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The entire maxillary and mandibular arches and surrounding structures- What reference plane is used in cephalometric radiographic analysis of the facial skeleton?
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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.
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occlusal- Where does the mental foramen typically appear on a mandibular periapical radiograph?
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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?
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The mental foramen
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