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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. |