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A jaw abnormality is a disorder in the formation, shape and/or size of the jaw. In general abnormalities arise within the jaw when there is a disturbance or fault in the fusion of the mandibular processes. The mandible in particular has the most differential typical growth anomalies than any other bone in the human skeleton.
Long face syndrome, also referred to as skeletal open bite, [1] is a relatively common condition characterised by excessive vertical facial development. [2] Its causes may be either genetic or environmental. Long face syndrome is "a common dentofacial abnormality." [3]: 369 [4] Its diagnosis, symptomology and treatments are complex and ...
The underdevelopment of the bones in the upper jaw, which gives the middle of the face a sunken look. [1] This same underdevelopment can make it difficult to eat and can lead to complications such as Nasopharyngeal airway restriction. This restriction causes forward head posture which can then lead to back pain, neck pain, and numbness in the ...
Increased vertical growth causes a long facial profile and commonly leads to an open bite malocclusion, while decreased vertical facial growth causes a short facial profile and is commonly associated with a deep bite malocclusion. However, there are many other more common causes for open bites (such as tongue thrusting and thumb sucking) and ...
Micrognathism is a condition where the jaw is undersized. It is also sometimes called mandibular hypoplasia. [2] It is common in infants, [3] [4] but is usually self-corrected during growth, due to the jaws' increasing in size. It may be a cause of abnormal tooth alignment and in severe cases can hamper feeding. [5]
Craniofacial abnormalities are congenital musculoskeletal disorders which primarily affect the cranium and facial bones. [ 1 ] They are associated with the development of the pharyngeal arches . [ 2 ]
Agnathia (also termed hypognathous) [1] is the absence of a portion or the entirety of one or both jaws. [1] [3] It is a very rare condition. [1]External, middle, and inner ear abnormalities, as well as temporal bone, parotid gland, masticatory muscles, and facial neural abnormalities, frequently coexist with Agnathia.
Retrognathia is a type of malocclusion which refers to an abnormal posterior positioning of the maxilla [1] or mandible, [2] particularly the mandible, relative to the facial skeleton and soft tissues. [3] A retrognathic mandible is commonly referred to as an overbite, though this terminology is not used medically.