Radiographic Localisation Revision Questions

Question 1

Parallax

Answer 1

An apprarent change in a positionof an object caused by a real change in the positon of observer

Question 2

SLOB

Answer 2

Same lingual, opposite buccal - things further away move with you, e.g - lingual moves with you

Question 3

2 views that are unrealaible for parallax

Answer 3

PA and panoramic - minimal tube shift between these 2 and unpredicatable between them so should be avoided
No difference in vertical tube shift between them and can’t predict their angulation pf tooth using this technique

Question 4

Horizontal tube shift - equivalent views

Answer 4

2 PA’s
2BW’s
2 oblique occulsals

Question 5

Vertical tube shift - different views

Answer 5

panoramic and oblique occlusal

panoramic and lower (bisecting angle) PA