Localisation

Question 1

what is localisation?

Answer 1

finding the exact position of a structure that cant be seen directly

Question 2

what does localisation do?

Answer 2

overcoming 2D limitations
assessing relationship of one structure to another
building up a 3D image

Question 3

what is localisation used for?

Answer 3

assessing buccal/palatal relationship of unerupted teeth to dental arch
position of foreign bodies
expansion/destruction of bone
position of salivary calculi
separating multiple roots of teeth for RCT
assessing displacement of fractures

Question 4

what is parallax views?

Answer 4

2 views/radiographs taken of the same object with a change in angulation of the beam
relative movement of object being localised to fixed point
horizontal/vertical plane
usually taken to determine buccal/palatal position of non visible object