Intra-oral views

Question 1

What are intra oral films made up of?

Answer 1

plastic envelope: to protect the contents from saliva contamination
black paper: to prevent exposure of light to film
film: exposed to ionising radiation + produces dental image
lead foil: prevent scatter of ionising radiation past the film packet

Question 2

Horizontal bitewings

Answer 2

show posterior teeth + are typically taken to view distal of 4 to mesial of 8
used for:
inter proximal caries, restoration overhangs, caries beneath fillings/crowns, occlusal caries

Question 3

Vertical bitewings

Answer 3

show extended view of posterior teeth, from mid root of uppers to mid root of lower used for:
see periodontal bone levels of posterior teeth, true periodontal pockets, detect moderate to severe periodontal disease

Question 4

Periapical

Answer 4

show one or two teeth in full + surrounding bone
used for:
detection of abscesses, assessment of roots before XLA, during endodontics + assessment of periodontal status

Question 5

Occlusal

Answer 5

show plane view of anterior section of either maxilla or mandible
used for:
view unerupted teeth, detect supernumerary, evaluate cysts/tumours