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Technical
IVT
bimaxillary protrusion
Forward positioning of both upper and lower jaws, often requiring surgical setback for correction.
Full Definition
A facial skeletal pattern characterized by anterior positioning of both the maxilla and mandible relative to the cranial base, resulting in protrusive appearance of both jaws and lips. This condition affects facial profile and may impact dental function and airway. Surgical correction typically involves bimaxillary osteotomies to reposition both jaws posteriorly, often combined with orthodontic treatment.
In Context
- "Cephalometric analysis confirmed bimaxillary protrusion requiring surgical correction." — Orthodontic evaluation
- "The patient's bimaxillary protrusion contributed to lip incompetence and mouth breathing." — Clinical examination
Also known as
double jaw protrusion
Contrasted with
bimaxillary retrusion
Don't confuse with
maxillary protrusion
prognathism