What is the position of the zygomatic bone?
zygomatic bone, also called cheekbone, or malar bone, diamond-shaped bone below and lateral to the orbit, or eye socket, at the widest part of the cheek. It adjoins the frontal bone at the outer edge of the orbit and the sphenoid and maxilla within the orbit.
What is lateral to the zygomatic bone?
Os zygomaticum. Synonyms: Zygoma, Malar bone. The zygomatic bone has three surfaces: lateral, posteromedial and orbital. The lateral (facial) surface faces towards the outside. It is smooth and convex, and it features a small opening called the zygomaticofacial foramen.
Which radiograph would clearly view a zygomatic arch fracture?
Traditional facial radiographs have limited usefulness in the diagnosis of zygomaticomaxillary complex (ZMC) fractures. The submental-vertex view offers excellent resolution of the zygomatic arches; however, the Townes, anteroposterior, and Waters views offer much less information.
How do you XRAY your face bone?
Position of patient Lying on the side (left or right) with a vertical beam angled at 15 degrees. Position of part Remove dentures, facial jewelry, earrings, and anything from the hair. The X-ray tube should be angled 15 degrees. The side to the imaged should be positioned nearest to the table.
What forms the zygomatic arch?
The zygomatic arch plays a critical role in the mammalian masticatory system. Formed by the union of the zygomatic process of the temporal bone and the temporal process of the zygomatic bone, it is from this beam-like structure that the masseter muscle, a major jaw adductor, originates.
What is a zygomatic arch fracture?
Fracture of the zygomatic bone is a common fracture of the facial skeleton; the zygomatic bone forms the most anterolateral projection one on each side of the middle face. The zygomatic bone is attached to the maxilla at the zygomaticomaxillary (ZM) suture and alveolus forming the zygomaticomaxillary buttress.
Is zygoma same as zygomatic arch?
The zygomatic arch is occasionally referred to as the zygoma, but this term usually refers to the zygomatic bone or occasionally the zygomatic process.
How do I know if my zygomatic bone is broken?
Broken jaw
- Pain.
- Bruising, swelling, or tenderness along the jaw or below the ear.
- Inability to bring the teeth together properly (malocclusion)
- Bruising under the tongue (almost always indicates a jaw fracture)
- Missing or loose teeth.
- Numbness in the lower lip or chin.
What does a lateral oblique radiograph show?
Oblique lateral radiographs are extraoral views of the jaws that can be taken using a dental X-ray set (see Fig. 12.1). Before the development of panoramic equipment they were the routine extraoral radiographs used both in hospitals and in general practice.
Is the zygomatic arch the cheekbone?
In anatomy, the zygomatic arch, or cheek bone, is a part of the skull formed by the zygomatic process of the temporal bone (a bone extending forward from the side of the skull, over the opening of the ear) and the temporal process of the zygomatic bone (the side of the cheekbone), the two being united by an oblique …
How do you test for zygomatic fracture?
Diagnosis of zygomatic complex fractures is usually clinical, with confirmation by computed tomography (CT) scan [6]. The integrity of the zygomatic complex is fundamental in maintaining normal facial width and prominence of the cheek.
What do you suppose to be the specific function of the zygomatic arch?
The function of the zygomatic arch is protection of the eye, origin for the masseter and part of the temporal muscles, and to provide an articulation for the mandible. The zygomatic arch is approached by an incision made along its ventral border.