Intensifying screens are used in extraoral radiographic cassettes to reduce exposure time and dose for patients. DPT stands for Dental Panoramic Tomograph. Intra-oral film packets contain lead foil to stop the x-ray beam from exposing the film and causing unwanted exposure after exposing the film. Silver bromide is used in dental radiography as the coating on unexposed film which absorbs x-rays to produce an image. Radiographic monitoring badges should be checked regularly by an authorized company to check staff exposure.

1. RADIOGRAPHY
1.Intensifying screens are used in EXTRAORAL RADIOGRAPHIC
CASSETTES TO REDUCE THE EXPOSURE TIME AND DOSE FOR
THE PATIENT
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2. DPT stands for ------------------------------------Dental
PanoramicTomograph------
3.Intra-oral film packets contain lead foil to -----------stop the x-ray beam
passing out of the film packet after exposing the film and causing
unwanted exposure.
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4 Anterior occlusal radiographs are often taken to --------
determine the position of unerupted canines
and to diagnose mesiodens
5 Silver bromide is used in dental radiography as
the coating on the unexposed film
which acts by absorbing the x-ray beam on exposure to produce the
image.
6.Staff X-ray exposure can be checked using
monitoring badges which should be checked by an authorised
radiographic monitoring company.
7. Elongation occurs on radiographs when the cone of the machine at too
shallow an angle to the film packet.
8. A radicular cyst appears on a radiograph as a radiolucent area adjacent
to the apex of the tooth, with a white rim around it.
9. The bisecting angle technique is used to ensure that neither elongation
or foreshortening of the image occurs.
10. An underdeveloped radiograph will appear as ------------
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11. Bitewings radiographs are taken to ------------------------
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12. The two radiographs taken during endodontic treatment
should show ---------------------------------------------------------
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13. Parallax is a technique used to ----------------------------
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14. A safe light is required in the developing room--------
--------------------------------and is usually coloured ----------
15. A developed radiograph which is black has -------------
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2. 16. Lateral skull radiographs are used in --------------------
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17. Radiographs should be mounted --------------------------
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18 A lid is required on the ----------------------------tank
to prevent
19. The image on a radiographic film is formed by------
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20.A blurred image indicates-------------------------------
21 Interproximal bone loss can be seen by taking-------
------------------------------or ---------------------------------