Canadian Medical Guide > Diseases > Musculoskeletal Diseases > Jaw Diseases > Jaw Abnormalities Terms and Definitions

Jaw Abnormalities

Medical Definition:	Congenital absence of or defects in structures of the jaw.
Guide Notes:	GEN only: prefer specifics: MAXILLA /abnorm or MANDIBLE /abnorm; do not use /congen & do not coord with INFANT, NEWBORN, DISEASES

Jaw Abnormalities Categories.

	Cleft Palate - Congenital fissure of the soft and/or hard palate, due to faulty fusion.
	Micrognathism - Unusual or undue smallness of the jaws. (Dorland, 27th ed)
	Pierre Robin Syndrome - An autosomal recessive disorder characterized by brachygnathia and cleft palate, often associated with glossoptosis, backward and upward displacement of the larynx, and angulation of the manubrium sterni. Cleft palate makes sucking and swallowing difficult, permitting easy access of fluids into the larynx. It may appear in several syndromes or as an isolated hypoplasia. (Dorland, 27th ed)
	Prognathism - A condition marked by abnormal protrusion of the mandible. (Dorland, 27th ed)
	Retrognathism - Retrusion of the mandible. (Dorland, 27th ed)

Jaw Abnormalities Medical Definitions and Terms

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