Radiography Flashcards
7 cards from real ADAP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Radiography flashcards as text
Which radiographic technique is most commonly used for children due to reduced patient discomfort?
Answer: Bisecting angle technique
The bisecting angle technique is often preferred for pediatric patients because it requires less film placement depth and causes less gagging.
What is the purpose of the lead apron used during dental radiography?
Answer: To protect the patient from scattered radiation to the torso and gonads
The lead apron shields the patient's thyroid, chest, and reproductive organs from scatter radiation during X-ray exposure.
What does the term 'elongation' describe in dental radiography?
Answer: An image that appears longer than the actual tooth
Elongation occurs when the vertical angulation of the X-ray beam is too shallow (less than correct), causing the image to appear stretched or longer than the actual tooth.
Which type of dental radiograph provides the most comprehensive view of the entire dentition and surrounding structures in a single image?
Answer: Panoramic radiograph
A panoramic radiograph captures the entire maxilla, mandible, teeth, and surrounding structures in one extraoral image.
What does kilovoltage peak (kVp) primarily control in dental radiography?
Answer: The penetrating power (quality) of the X-ray beam
kVp controls the energy and penetrating ability of the X-ray beam, affecting contrast and the ability to penetrate dense structures.
A patient presents with an extremely sensitive gag reflex. Which receptor placement strategy is most appropriate for posterior periapical radiographs?
Answer: Use a size 0 receptor and place it as far posterior as acceptable
A smaller receptor (size 0) minimizes bulk in the oral cavity and should be positioned to capture the required anatomy while minimizing palatal contact that triggers gagging.
What radiographic landmark appears as a radiopaque band running horizontally across the roots of the maxillary molars?
Answer: Zygomatic process of the maxilla
The zygomatic process (malar process) of the maxilla appears as a dense, radiopaque U-shaped or band-like structure superimposed over the maxillary molar roots.