The process of portrait-mapping has provided tools for geneticists and pedigree analysis; most instances are considered polygenic, but a number of researchers believe that this trait is transmitted through an autosomal recessive type of inheritance. Allegedly introduced into the family by a member of the Piast dynasty, it is clearly visible on family tomb sculptures in St. Johns Cathedral, Warsaw. A high propensity for politically motivated intermarriage among Habsburgs meant the dynasty was virtually unparalleled in the degree of its inbreeding. Charles II of Spain, who lived 1661 to 1700, is said to have had the most pronounced case of the Habsburg jaw on record, due to the high number of consanguineous marriages in the dynasty preceding his birth. Treatment
Prior to the development of modern dentistry, there was no treatment for this condition; those who had it simply endured it. Today, the most common treatment for mandibular prognathism is a combination of orthodontics and orthognathic surgery. The orthodontics can involve braces, removal of teeth, or a mouthguard. In insects
In entomology, prognathous means that the mouthparts face forwards, being at the front of the head, rather than facing downwards as in some insects. See also
Dental pathology

Notes
References
Sources
Beuchat, Carol (12 March 2015). "Why all the fuss about inbreeding?". Institute of Canine Biology. Retrieved 16 April 2020. Mitchell, Sylvia Z (2013). Mariana of Austria and Imperial Spain: Court, Dynastic, and International Politics in Seventeenth-Century Europe (Thesis).
Hair follicle nevus is a cutaneous condition that presents as a small papule from which fine hairs protrude evenly from the surface. See also
Skin lesion
List of cutaneous conditions


== References ==