Key Facts Prognathism refers to a positional discrepancy of the maxillary (upper) or mandibular (lower) jaw in relation to the facial skeleton and soft tissues There are mainly two types of prognathism: Maxillary prognathism where the upper jaw protrudes, and Mandibular prognathism where the lower jaw protrudes It can be caused by genetic factors, hormonal imbalances, or as a result of other conditions like acromegaly The treatment ranges from orthodontic braces to corrective jaw surgery, depending on the severity and underlying cause What is Prognathism in Upper Jaw and Lower Jaw? Prognathism (also called Habsburg chin, Habsburg’s chin, Habsburg jaw or Habsburg’s jaw) is a dental condition where there is…