03 Intraoral radiography

Question 1

in a periapical rad, how much bone should be included above the apex?

Answer 1

2-3 mm

Question 2

If the vertical angulation is incorrect, how will the teeth appear?

Answer 2

either foreshortened or elongated

Question 3

what are the different techniques for intraoral film placement?

Answer 3

• paralleling technique

- bisecting angle technique

Question 4

paralleling technique

Answer 4

-film is parallel to the true axis of the tooth

Question 5

bisecting angle technique

Answer 5

the beam is perpendicular to the plane halfway between the angle of the film and the axis of the tooth
-inherent distortion, limited clinical application

Question 6

How many films are in a full mouth series?

Answer 6

18, 14 PAs and 4 BWs

Question 7

what areas are included in maxillary molar periapicals?

Answer 7

• the area of all three molars

- 2-3 mm of bone

Question 8

Maxillary premolar PAs include…

Answer 8

premolars and distal of canine,

2-3 mm of bone

Question 9

maxillary lateral/canine area includes…

Answer 9

-lateral and canine centered

2-3 mm of bone

Question 10

maxillary central PA

Answer 10

Central centered with 2-3 mm of bone

Question 11

T/F the areas covered by the mandibular PAs are exactly the same, but in the mandibular arch

Answer 11

True. I didn’t want to type all the same things for the mandibular. Hope this card makes sense, Ryan

Question 12

what areas are included in molar bitewings?

Answer 12

• all molars
• interproximal spaces open
• bone levels displayed
• equal distribution
• minimal distortion with adequate contrast/density

Question 13

what areas are included in premolar bitewings?

Answer 13

-pms and distal of both canines, then all the same quality stuff as molars