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Skull - PartPosition
Placement of cranial lines, planes, head parts
| Question | Answer |
|---|---|
| PA AXIAL (HAAS) | Forehead/nose on table; MSP and OML perpendicular |
| PA | Forehead/nose on table; MSP and OML perpendicular |
| PA (CALDWELL) | Forehead/nose on table; MSP and OML perpendicular |
| SMV (SCHULLER) | Head on vertex. MSP perpendicular; IOML parallel |
| LATERAL | MSP and IOML parallel. IPL perpendicular |
| TRAUMA LATERAL (DORSAL DECUBITUS) | IPL perpendicular; MSP parallel |
| TRAUMA AP AXIAL (TOWNE) | MSP and OML perpendicular |
| PARANASAL SINUSES (LATERAL) | MSP and IOML parallel; IPL perpendicular |
| PARANASAL SINUSES (SMV) BASAL | Head on vertex. MSP perpendicular; IOML parallel |
| AP AXIAL (TOWNE) | MSP and OML perpendicular |
| PARANASAL SINUSES - OPEN MOUTH (WATERS) | Mouth on table. MML and MSP perpendicular |
| PARANASAL SINUSES - PARIETOACANTHIAL (WATERS) | Head on chin MSP perpendicular; adjust OML to form 37 degree angle |
| FRONTAL, ANTERIOR ETHMOIDAL SINUSES | Forehead/nose on table. MSP and OML perpendicular |
| NASAL BONES (LATERAL) | MSP and IOML parallel. IPL perpendicular |
| FACIAL BONES (PA) (MODIFIED WATERS, SHALLOW WATERS) | Chin on table. OML forms 55-degree angle. MSP perpendicular |
| FACIAL BONES (PA AXIAL) (CALDWELL) | Forehead/nose on table. MSP and OML perpendicular |
| FACIAL BONES - PARIETOACANTHIAL (WATERS) | Chin on table. OML forms 37-degree angle; MSP and MML perpendicular |
| FACIAL BONES (LATERAL) | MSP and IOML parallel. IPL perpendicular |
| ORBITS (PA AXIAL) | Forehead/nose on table. MSP and OML perpendicular |
| ORBITS - PARIETOACANTHIAL (MODIFIED WATERS) | Chin on table. OML forms 50-degree angle. MSP perpendicular |
| MANDIBLE (PA AXIAL) RAMI | Forehead/nose on table. MSP and OML perpendicular |
| MANDIBLE (AXIOLATERAL OBLIQUE) | IPL perpendicular; Ramus: true lateral. Body: 30 degrees toward IR; symphysis: 45 degrees toward IR |
| ZYGOMATIC ARCHES (SMV) | Head on vertex. IOML parallel; MSP perpendicular |
| ORBITS (LATERAL) | MSP parallel; IPL perpendicular. |
| MANDIBLE (SMV) | Head on vertex. IOML parallel. MSP perpendicular |