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recall and work book with the answer, Assignments of Dentistry

You find all the answer for recall and workbook question for dental assistant chapter 38 radiology

Typology: Assignments

2023/2024

Uploaded on 05/22/2024

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1. In digital radiography, what replaces the intraoral film?
image receptor, Sensor or phosphor plate
2. What are the two fundamental techniques for intraoral digital radiography?
Direct imaging. Indirect imaging
3. Which of the digital techniques requires scanning of image receptors?
phosphor storage plate.
4. How does the use of positioning instruments protect the patient from unnecessary radiation?
keeps the patients fingers from being exposed.
5. What is the primary difference between a film holder and a digital sensor holder?
Size and shape of the holder
6. What is the purpose of a beam alignment device?
is to assist in the positioning of the position indicating device (PID) in relation to the tooth and film.
7. What are the five components of intraoral film?
1. A film base made of clear cellulose acetate
2.A thin adhesive later that attaches the emulsion to the film base
3.A gelatin that suspends the emulsion of microscopic silver crystals over the film base
4.Silver halide crystals that absorb radiation
5.A thin transparent coating that protects the emulsion
8. What is a latent image?
The invisible image on the x-ray film after exposure but before processing.
8. How can you tell which side of the film is placed toward the tube?
The white side of the film is placed toward the tube.
9. What number film is used for adult radiographs?
Size #2
10. What size film is used for occlusal radiographs?
Size 4
11. What are the two types of extraoral film cassettes?
rigid and flexible
12. What is an intensifying screen?
Converts radiographic energy into visible light.
13. How does extraoral film react differently from intraoral film?
The light from the screen exposes the extraoral film, the intraoral film is exposed directly by radiation
14. When might it be necessary to duplicate x-rays?
For the insurance company or for referral of patients to a specialist or another dental office
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  1. In digital radiography, what replaces the intraoral film? image receptor, Sensor or phosphor plate
  2. What are the two fundamental techniques for intraoral digital radiography? Direct imaging. Indirect imaging
  3. Which of the digital techniques requires scanning of image receptors? phosphor storage plate.
  4. How does the use of positioning instruments protect the patient from unnecessary radiation? keeps the patients fingers from being exposed.
  5. What is the primary difference between a film holder and a digital sensor holder? Size and shape of the holder
  6. What is the purpose of a beam alignment device? is to assist in the positioning of the position indicating device (PID) in relation to the tooth and film.
  7. What are the five components of intraoral film? 1. A film base made of clear cellulose acetate 2.A thin adhesive later that attaches the emulsion to the film base 3.A gelatin that suspends the emulsion of microscopic silver crystals over the film base 4.Silver halide crystals that absorb radiation 5.A thin transparent coating that protects the emulsion
  8. What is a latent image? The invisible image on the x-ray film after exposure but before processing.
  9. How can you tell which side of the film is placed toward the tube? The white side of the film is placed toward the tube.
  10. What number film is used for adult radiographs? Size #
  11. What size film is used for occlusal radiographs? Size 4
  12. What are the two types of extraoral film cassettes? rigid and flexible
  13. What is an intensifying screen? Converts radiographic energy into visible light.
  14. How does extraoral film react differently from intraoral film? The light from the screen exposes the extraoral film, the intraoral film is exposed directly by radiation
  15. When might it be necessary to duplicate x-rays? For the insurance company or for referral of patients to a specialist or another dental office
  1. What precautions should be taken when storing x-ray ?lm? Radiographic film should be stored away from light, heat, moisture, chemicals, and scatter radiation
  2. How can you ?nd the expiration date of a package? The expiration date of a package of radiographic film is on the outside of the box
  3. What are the ?ve steps in processing dental radiographs? 1.developing 2.rinsing 3.fixing 4.washing 5.drying
  4. Which is the most widely used form of processing solution? The liquid concentrate
  5. How often should processing solutions be replenished? Processing solutions should be replenished daily
  6. What is a safelight? A low intensity light composed of long wavelength in the red orange spectrum
  7. What is the minimum distance between the safelight and the working area? 4 feet
  8. What is the optimum temperature for the water in the manual processing tanks? 68 degrees F
  9. What is the major advantage of automatic ?lm processing? Less time required for processing is the major advantage of automatic film processing
  10. How often should the levels of solution in the automatic processor be checked? Checked daily
  11. Are manual processing solutions and automatic processing solutions interchangeable? Manual processing solutions and automatic processing solutions are not interchangeable.