pterygoid plate


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pterygoid plate

Either of a pair of thin, bony processes that arise from the sphenoid bone. They are termed medial and lateral pterygoid plates on each side, serve to bound the infratemporal fossa, and give origin to muscles of mastication.
See also: plate
References in periodicals archive ?
The examiner should place his index or little finger at the maxillary third molar area and to move it posteriorly, superiorly and medially behind the tuberosity until the outer surface of lateral pterygoid plate is reached.
The tensor veli palatini muscle from a relatively broad origin converges on a medial tendon, which passes around the hamulus of the medial pterygoid plate.
Coronal scans were superior to axial in orbital floor, orbital roof pterygoid plate, cribriform plate superior and inferior orbital rim fractures.
These long implants can utilize the benefit of anchoring in the pterygoid plate in addition to penetrating the two corticals of the maxillary bone.
These teeth usually displace through the periosteum into the infratemporal fossa just adjacent to the lateral pterygoid plate and inferior to the lateral pterygoid muscle.
Computed tomography (CT) was done which demonstrated calcified plaques in the left medial and lateral pterygoid muscles extending from the lateral pterygoid plate to their insertions into the ramus neck of the mandible respectively (Figure 3).
CECT is a gold standard radiological investigation for assessment of GBS tumors: mandibular invasion can best be demonstrated (especially early bone involvement), masticator space involvement (low and high), pterygoid muscle involvement, pterygoid plate and skull base involvement are well appreciated.
Position of the foramen ovale in the greater wing of sphenoid bone is close to the upper end of posterior margin of lateral pterygoid plate, lateral to the foramen lacerum and most commonly medial to foramen spinosum.