Prognathism is an extension or bulging out (protrusion) of the lower jaw (mandible). It occurs when the teeth are not properly aligned due to the shape of the face bones.
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Diagnostic tests may include:
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Diagnostic tests may include:
- Skull x-ray (panoramic and cephalometric)
- Dental x-rays.
- Imprints of the bite (a plaster mold is made of the teeth)
How do you know if you have Prognathism?
Prognathism may be a sign of an underlying medical condition, which could require treatment. Talk to your healthcare provider if you suspect that your jaw is protruding and you have difficulty talking, biting, or chewing.
How is Prognathism measured?
Prognathism is usually measured with the craniofacial angle (also known as the sphenomaxillary angle), which is the angle formed in the sagittal plane between the most anterior points on the maxilla, sphenoid and foramen magnum (because these landmarks can be difficult to observe in intact crania, this angle is ...
