Dental Radiography
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Questions and Answers

Which term describes two lines that are always separated by the same distance and do not intersect?

  • Perpendicular
  • Right angle
  • Parallel (correct)
  • Intersecting

    • What is the purpose of a beam alignment device in the paralleling technique?

  • To decrease the target-receptor distance
  • To increase image magnification
  • To keep the receptor parallel with the long axis of the tooth (correct)
  • To direct the central ray at a right angle to the receptor

    • Why must the object-receptor distance be increased in the paralleling technique?

  • To decrease the target-receptor distance
  • To ensure that only the most parallel rays are directed at the tooth and the receptor
  • To achieve parallelism between the receptor and the tooth (correct)
  • To decrease image magnification

    • Which type of receptor is used for posterior projections at NEMCC?

    <p>Size 2</p> Signup and view all the answers

    Why are premolar placements preferred for posterior exposures?

    <p>They are less likely to cause gag reflex</p> Signup and view all the answers

    How many posterior placements are used in the paralleling technique at NEMCC?

    <p>4 maxillary exposures and 4 mandibular exposures</p> Signup and view all the answers

    Which type of collimator is recommended by the American Dental Association and the American Academy of Oral and Maxillofacial Radiology to reduce radiation exposure to the patient?

    <p>Rectangular collimator</p> Signup and view all the answers

    Which instrument is used in the paralleling technique to position the receptor parallel to the long axis of the tooth?

    <p>Rinn XCP instruments</p> Signup and view all the answers

    What is the recommended exposure sequence for anterior periapical receptor placement in the paralleling technique?

    <p>Start with maxillary right canine, tooth #6</p> Signup and view all the answers

    How many anterior placements are used in the paralleling technique when using a size 2 receptor?

    <p>6 anterior placements</p> Signup and view all the answers

    Which term describes the technique used to expose periapical and bite-wing image receptors?

    <p>Parallel</p> Signup and view all the answers

    What is the purpose of a beam alignment device in the paralleling technique?

    <p>To keep the receptor parallel with the long axis of the tooth</p> Signup and view all the answers

    Why must the target-receptor distance be increased in the paralleling technique?

    <p>To increase the target-receptor distance</p> Signup and view all the answers

    Which quadrant is the maxillary right quadrant in the paralleling technique at NEMCC?

    <p>Quadrant 1</p> Signup and view all the answers

    Which teeth are exposed first in the mandibular left quadrant in the paralleling technique at NEMCC?

    <p>Premolar teeth</p> Signup and view all the answers

    What is the recommended size of the receptor used for posterior projections at NEMCC?

    <p>Size 2</p> Signup and view all the answers

    Which technique is sometimes referred to as the 'long-cone technique' in dental radiography?

    <p>Paralleling technique</p> Signup and view all the answers

    What is the purpose of using a rectangular collimator in dental radiography?

    <p>To reduce radiation exposure to the patient</p> Signup and view all the answers

    What is the recommended size of the receptor used for anterior exposures in the paralleling technique?

    <p>Size 1</p> Signup and view all the answers

    How many maxillary incisor exposures are used in the paralleling technique when using a size 2 receptor?

    <p>Two</p> Signup and view all the answers

    Which term describes the technique used to expose periapical and bite-wing image receptors?

    <p>Long-cone technique</p> Signup and view all the answers

    What is the purpose of a beam alignment device in the paralleling technique?

    <p>To keep the receptor parallel with the long axis of the tooth</p> Signup and view all the answers

    Why must the object-receptor distance be increased in the paralleling technique?

    <p>To compensate for the anatomic configuration of the oral cavity</p> Signup and view all the answers

    Which quadrant is the last one to be exposed in the paralleling technique at NEMCC?

    <p>Mandibular right quadrant</p> Signup and view all the answers

    Which teeth are exposed first in the maxillary left quadrant in the paralleling technique at NEMCC?

    <p>Premolar teeth #12 and 13</p> Signup and view all the answers

    What is the recommended size of the receptor used for posterior projections in the paralleling technique at NEMCC?

    <p>Size 2</p> Signup and view all the answers

    Which type of receptor is recommended for anterior exposures in the paralleling technique?

    <p>Size 1 receptor</p> Signup and view all the answers

    What is the purpose of using a rectangular collimator in dental radiography?

    <p>To reduce the amount of radiation the patient receives</p> Signup and view all the answers

    What is the recommended exposure sequence for anterior periapical receptor placement in the paralleling technique?

    <p>Start with maxillary right canine, tooth #6</p> Signup and view all the answers

    Why is it important to position the receptor parallel to the long axis of the tooth in the paralleling technique?

    <p>To ensure accurate representation of the tooth structure</p> Signup and view all the answers

    Study Notes

    Dental Radiography

    • Parallel lines are two lines that are always separated by the same distance and do not intersect.

    Paralleling Technique

    • A beam alignment device is used to position the receptor parallel to the long axis of the tooth.
    • The object-receptor distance must be increased in the paralleling technique.
    • A size 2 receptor is used for anterior exposures.
    • The recommended exposure sequence for anterior periapical receptor placement is: maxillary right, maxillary left, mandibular right, and mandibular left.
    • Four anterior placements are used in the paralleling technique when using a size 2 receptor.
    • The paralleling technique is sometimes referred to as the 'long-cone technique' in dental radiography.
    • A rectangular collimator is recommended by the American Dental Association and the American Academy of Oral and Maxillofacial Radiology to reduce radiation exposure to the patient.
    • The purpose of using a rectangular collimator is to reduce radiation exposure to the patient.

    Posterior Projections

    • A size 2 receptor is used for posterior projections at NEMCC.
    • The receptor used for posterior projections at NEMCC is a phosphor plate receptor.
    • Premolar placements are preferred for posterior exposures.

    Quadrant Exposure Sequence

    • The maxillary right quadrant is exposed first in the paralleling technique at NEMCC.
    • The mandibular left quadrant is the last one to be exposed in the paralleling technique at NEMCC.
    • In the maxillary left quadrant, the teeth exposed first are the maxillary left central and lateral incisors.
    • In the mandibular left quadrant, the teeth exposed first are the mandibular left canine and premolars.

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    Description

    Test your knowledge of the paralleling technique with this quiz! Learn about the terminology used in dental radiography, such as parallel, intersecting, perpendicular, and right angle. Perfect for dental professionals looking to enhance their imaging skills.

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