Two points on the skull were marked, the first being the inion and the second the root of
zygoma. A line is marked connecting the inion and root of
zygoma.
Maxillary lesions may expand to maxillary sinus,
zygoma, sphenoid bone and floor of the orbit.
Ectophallus (Figs 3D-E, 4B-C, 5D-E, 6C-D).--The cingulum has a well-sclerotised
zygoma, which bears short, curved cingular apodemes, giving a horseshoe shaped appearance in dorsal view (these are distinctly different from the longer, more orthogonally arranged apodemes of Serpusia--see below).
(A = anterior; S = superior; OA = orbital apex; Z =
zygoma; R = right; IT = inferior turbinate; F = frontal sinus.)
"OSA was independently associated with intracranial bone (calvaria and skull base) thinning and not with extracranial (
zygoma) thinning," the authors write.
Distribution of bone fractures by structures was 661 mandibular fractures (52.2%), 408
zygoma fractures (32.2%), 217 maxillary fractures (17.1%), 107 orbital fractures (8.4%), 50 nasal fractures (3.9%), 38 frontal sinus fractures (3%), 36 panfacial fractures (2.8%), and 33 nasoorbitoethmoid fractures (2.6%).
The implant systems used were Branemark System[R] MK-III and
Zygoma TiUnite (Nobel Biocare, Zurich, Switzerland).
Nasal, lacrimal, and malar bones may be hypoplastic or undeveloped, and the
zygoma develops poorly.
After the skin incision, a superior and inferior dissection was made to reach supraorbital and infraorbital margins, respectively, to expose the lateral wall; an electro-saw was used to cut the
zygoma, and then it was fractured laterally with the use of a rongeur.
Pyocyaneus osteomyelitis of the temporal bone, mandible and
zygoma. Laryngoscope 1959; 69: 1300-16.
Orbital apex syndrome associated with fractures of the
zygoma and orbital floor.
Sinus shots can be done by injecting straight onto the
zygoma on the periosteum if there has been a sinus perforation after dental surgery, again especially over Ah Shi points.
Infraorbital nerve injury associated with
zygoma fractures: documentation with neurosensory testing.
