Open bite correction in the growth phase patients
The term anterior open bite (AOB) means altered dental arches morphology, where there is an increase in the vertical distance between the front teeth of the upper group and those later.
The multifactorial etiology of such malformations include: noxious oral habits, unfavorable growth parameters; increase of lymphatic tissue volume (adenoids), with development of an oral breathing.
The objective of this work is to carry out a systematic review of literature on the AOB, with its epidemiology and etiology, diagnosis and treatment options of patients in the growth phase.
Materials and methods
The systematic literature review was conducted by using the Medline database (www.ncbi.nim.gov/pubmed). The key words were "open bite" (28 articles), "treatment of open bite" (24) and "early treatment" (8). Among the identified articles were chosen 45. Thus, with exclusion of those were common and considered those who provide information on etiology, diagnosis, treatment options and results obtained. The articles were selected only those included between 1964 and 2011. Using the options limits were considered only those items referred to humans; after articles published in non-indexed journals were added.
The open bite (OB) can be defined as a vertical failure of the arcades, determined by a poor dental position and / or skeletal as to not allow the closure of some dental elements with their antagonists.
The poor positioning can be the result both of an anomaly in the alveolar region as an amendment to the development of the bones of the facial massif. Mucedero and colleagues cite Moyers, which defines the OB as a malocclusion characterized by lack of vertical overlap of the incisors and the lack of occlusal stops.
Moyers divides open bite in "simple" when it is limited to its alveolar component, and "complex " is due to skeletal dysplasia .
In a study conducted by Kelly and colleagues in the US, the prevalence of such change afflicts 3.5% of the white population and 16.5% black.
Source: Dentista Hoje
Image takes from: http://www.odontoblogia.com.br/mordida-aberta/