1. Intraoral Radio

Question 1

What are the types of intraoral radiographs taken?

Answer 1

1. Periapical
2. Bitewing
3. Occlusal

Question 2

What is ‘black triangle error’?

Answer 2

• when occlusal surface not lined up w bite block
• black triangle cuz of the wasted real estate on film
• may result in missed apices

Question 3

What are the 6 types of occlusal radiography?

Answer 3

Maxillary
1. Anterior maxillary 45*
2. Lateral maxillary / maxi oblique
3. Vertex 90 (no longer used as xrays go thru gonads)

Mandibular
1. Anterior mandi 45*
2. Lateral mandi/ mandi oblique
3. True occlusal / mandi 90*

Question 4

[T/F] rectangular collimator can be used for occlusal radiography

Answer 4

False
- i think cuz its too small