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M6W3
Week 3
Question | Answer |
---|---|
Using a different film speed can reduce the developing time. T/F | False, it reduces the exposure time. |
Calcium tungstate phosphors emit a blue light known as "rare earth". T/F | False |
What is x-ray film sensitive to? | Stray radiation, chemicals & high temperatures |
In what technique is the central ray perpendicular to the bisecting line? | The bisecting technique |
An oral surgeon would be the specialist to most likely ask for vertical bitewings. T/F | False, a periodontist (gum specialist) would |
A dark film is the result of no exposure to radiation. T/F | False, the film would be clear. |
What error causes a herringbone pattern? | Placing the film backwards in the mouth. |
What is a light film image the result of? | Underdeveloped or underexposed. |
What errors can result in a dark film image? | Overdeveloping, the developing solution being too warm or overexposure. |
What specialist routinely uses extraoral radiographs? | Oral surgeons and orthodontists. |
What dental specialist might ask for a Cephalometric radiograph? | Orthodontist. |
Ektaspeed film has the highest speed for the greatest reduction in radiation exposure for the patient. T/F | False, Kodak Insight F speed |
What would a periapical radiograph show? | The apex, eruption stage and tooth development. |
How many inches over the incisal edge should a radiograph be placed? | 1/8th of an inch |
What errors can result in streaks on x-ray film? | Dirty rollers or processing racks in an automatic processor. |
What is the ideal temperature for developing solution? | 68 degrees F |
If a daylight loader is used, it means film can be exposed in the daylight. T/F | False, it means film can be developed or processed in the daylight. |