2-Jolene
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| 1. A thin black line is evident between the proximal contact area of adjacent teeth on a film. What is the most likely cause? | open contact because of the correct horizontal angle
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| 2. What does the acronym, XCP, mean? | X C P = eXtension Cone Paralleling
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| 3. What is meant by the acronym, DXTTR? | Dental X-ray Teaching Training Replica
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| 4. What is the term for an image that appears shorter on the film than it actually is? | foreshortening
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| 5. What is meant by the acronym, SFD? | Source (of x-rays) to Film Distance
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| 6. What is the easiest method (and most common) for changing the SFD? | change the PID
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| 7. What type of occlusal radiograph is best for viewing the apical areas of teeth? | topographical
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| 8. What type of occlusal radiograph is best for viewing size and shape of arch? | cross-sectional
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| 9. What is meant by obturating material? | filling for root canals
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| 10. What is the most likely cause for a patient being unable to lift his or her tongue? | ankyloglossia (tongue tied)
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| 11. Is it acceptable practice to use a tongue depressor as a film holding device? | yes
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| 12. Is it acceptable practice to have the patient position and stabilize the film with his or her fingers? | no
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| 13. What is the correct film position for parallel technique? | parallel to long axis of tooth
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| 14. What is the correct direction of the x-ray beam for parallel technique? | perpendicular to film and long axis of tooth
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| 15. Which intraoral exposures are made with the parallel technique? | periapicals
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| 16. Which intraoral exposures are made with the bisecting technique? | periapicals
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| 17. What is the correct film position for bisecting technique? | close to crown of tooth - forms and angle with the long axis
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| 18. What is the correct direction of the x-ray beam for bisecting technique? | perpendicular to bisector
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| 19. Which periapical technique will result in a radiograph of the highest diagnostic quality? | parallel
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| 20. Which periapical technique will accommodate a mouth with a very flat palate? | bisecting angle
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| 21. If the patient has a shallow floor of the mouth, describe the exposure method that is appropriate. | bisecting; flatter film postition; increase vertical anlge
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| 22. What are the benefits of dental radiographs? | diagnose conditions in early stages to save time, money and pain
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| 23. For which exposure technique is the XCP designed? | parallel
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| 24. Which exposures could be accomplished with the Snap-a-Ray? | bisecting-angle and parallel; also pedo bitewings
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| 25. Describe the use of salt for controlling gagging. | place on tongue prior to exposure
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| 26. The dental assistant is exposing a FMS and decides to use topical anesthetic to control gagging. What is the very first thing that should be done? | ask dentist to confirm use
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| 27. What amount of time does it take for the topical anesthetic to take effect? | two minutes
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| 28. Is it appropriate to use a loop tab for exposing a vertical bitewing? | no
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| 29. Is it appropriate to use a Snap-a-ray for exposing a vertical bitewing? | no
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| 30. What is the area of focus for an endodontic exposure? | apex
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| 31. Which films are typical of a FMS for a five-year-old patient? | 2 bitewings; 2 occlusals (1 upper, 1 lower, focusing on the anterior teeth
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| 32. Which information must be included on a film mount? | patient name, date of exposure, possibly the prescribing dentist
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| 33. What is the purpose for edge-eeze? | comfort to patient - covers sharp edges of film packets
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| 34. Which exposure technique is appropriate for edentulous patients? | parallel - pad the bite blocks with cotton rolls
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| 35. Which size film is appropriate for a three-year-old for exposing bitewings? | size 0
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| 36. What adjustment in exposure time is required for a small child? | reduce by approximately 50%
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| 37. What adjustment in exposure time is required for edentulous patients? | reduce by approximately 25%
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| 38. What film holding instrument is specifically designed for exposing endodontic films? | endoray
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| 39. What is the direction of the embossed dot for buccal view mounting of radiographs? | convexity towards viewer - bump facing viewer
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