RADIOGRAPHIC PROJECTIONS:-

MAXILLA
A. Max sinus
B. Zygoma
C. Zygomatic arch
D. Nasal bone – lateral image or lateral projection

WATER’S PROJECTION / OCCIPITO- MENTAL PROJECTION
o Area visualized — all sinus especially MAXILLARY SINUS
o Radiolucent seen — zygoma (zygoma is not zygomatic arch)
o Zygoma fracture best viewed in waters projection
o If fracture of anterior wall of maxillary sinus — fluid in sinus filled appearance QN
o Maxilla fracture.
o Projection — from occipital bone to nasal meatus.

SUBMENTO VERTEX PROJECTION
o Fracture of cranial base / base of the skull
o Inferior border of mandible
o zygomatic arch fracture
o Zygomatico maxillar complex fracture visualisable- when done at normal time exposure.
o 1/3rd the normal exposure time ie. underexposed — zygomatic arch as jug handle view