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nes 10? from posterior to anterior, patient’s lips placed together, tongue on roof of the mouth. Film: HD 23x30 cm, or curved nongrid cassette CP: Fixed CR and FFD. For TMJ, another film must be done with open mouth. Submentovertex (SMV) (for zygomatic arches) ?B 25 For s, neoplastic, or inflammatory processes of the zygomatic arch (usually taken as a softtissue technique). Patient supine or erect sitting, chin raised, neck hyperextended till IOML is parallel to film, MSP 90? to couch top. A pillow under patient’s back allows for sufficient extension. Film: HD 18x24 cm CP: Midway between zygomatic arches (4 cm inferior to mandibular symphysis). CR: 90? to film. Oblique inferosuperior Tangential (for zygomatic arches) ?S 26 For s, neoplastic, or inflammatory processes of the zygomatic arch. Specially useful in case of depressed zygomatic arches (skull trauma). Patient positioned as for the SMV, head rotated 15? toward side of interest, then chin tilted 15? toward side of interest. Film: HD 18x24 cm CP: Zygomatic arch of interest. CR: 90? to IOML and film. Parietoorbital (Rhese View) for optic foramina ?S 27 For bony abnormalities of the optic foramen. Both sides must be done for parison. Patient prone or erect, chin, cheek, and nose against couch, head adjusted so that the MSP makes 53? with the couch top, the acanthiomeatal line AML makes 90? to the film, a long narrow cone should be used. Film: HD 18x24 cm CP: Downside orbit (7 cm above and 7 cm behind the up EAM). CR: 90? to IOML Parietoacanthial (OM) (Waters View for sinuses ) ?B 28 Best for maxillary and frontal sinuses and nasal fossae. Also shows other inflammatory conditions (secondary ostemyelitis, and sinus polyps). Patient erect, neck extended, chin and nose against couch, head adjusted till MML is 90? to the film, OML makes 37? with film. AML makes 90? to the film, a long narrow cone should be used. Film: HD 18x24 cm CP: At level of lower border of the orbits to exit at the acanthion. CR: 90? horizontal to film center Parietoacanthial (OM) (OpenMouth Waters for sinuses ) ?S 29 Same as for Waters.. Same position as for Waters view, but with open mouth (patient drops his jaw without moving the head). Film: HD 18x24 cm. CP: At level of lower border of the orbits to exit at the acanthion. CR: 90? horizontal to film center