Search results
Results from the WOW.Com Content Network
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 ...
When there is maxillary or alveolar prognathism which causes an alignment of the maxillary incisors significantly anterior to the lower teeth, the condition is called an overjet. When the reverse is the case, and the lower jaw extends forward beyond the upper, the condition is referred to as retrognathia (reverse overjet). [citation needed]
It is estimated that nearly 30% of the general population present with malocclusions that are in great need of orthodontic treatment. [1] However, the term dentofacial deformity describes an array of dental and maxillo-mandibular abnormalities, often presenting with a malocclusion, which is not amenable to orthodontic treatment alone and definitive treatment needs surgical alignment of upper ...
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]
Corrective surgery is the most common treatment to correct this disorder. It involves the repositioning of the upper jaw to align with the lower jaw, to provide symmetry. The surgery may be performed in consultation with an Orthodontist who works on repositioning the teeth in the mouth. [1]
A common trick is to ask the patient to say the name "Emma," as the position of the mandible immediately after completing the word is a rough estimate of the patient's proper VDO. The position after saying "Emma" is referred to as the vertical dimension at rest, or VDR. Historically, the VDO has been estimated at 3 mm less than VDR because a ...
Overbite is often confused with overjet, which is the distance between the maxillary anterior teeth and the mandibular anterior teeth in the anterior-posterior axis. "Overbite" may also be used commonly to refer to Class II malocclusion or retrognathia, though this usage can be considered incorrect. This is where the mesiobuccal cusp of the ...