Open bite is a facial alteration that is defined by the impossibility of closing the front or back teeth. That is, there is no contact between the anterior or posterior teeth of the upper arch with the anterior or posterior teeth of the lower arch.
Open bite affects patients aesthetically, since visually there is a gap between the two arches; but, above all, functionality is the most affected factor: patients can not correctly perform any of the basic masticatory or phonatory functions, thus presenting lisps or other speech difficulties, as well as digestive problems due to deficient chewing.