This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
The size of the film used for lateral cephalogram: 
Select and explain. 
A. 8x10 inch, B. 6x12 inch, C. 1.5x7 inch, D. 57x76 mm
A: 8x10 inch
Answer: A: 8x10 inch 
Explanation: Size 0 – 22 x 35 - 1°dentition
Size 1 – 24 x 40 – Anterior
Size 2 – 31 x 41 – Adult
Note: Size 1 and 2 is used for transitional dentition
57 x 76 mm film – Occlusal view
8 x 10 inch – Lateral cephalograms, PNS view
6 x 12 inch – OPG
1.5 x 7 inch – TMJ + Lateral oblique view