Vertical evaluation of the dentition focuses on overbite
, or the amount of overlap of the upper and lower incisors.
Some of the studies that evaluated the clinical effectiveness, such as the overjet, overbite
, intercanine, and intermolar widths, arch length, and irregularity index, have indicated no significant difference between the two retainers (16, 18, 19).
Intraoral examination revealed that patient had Angle's Class II Division 1 malocclusion with overjet of 6 mm, an overbite
of 30% [Figure 2].
However the spread of agriculture meant humans ate softer foods, their teeth were exposed to less wear and tear, and adults kept their childhood overbite
, the researchers said.
While the teeth of all humans in the distant past used to meet in an edge-to-edge bite due to their harder and tougher diet based on hunting and gathering, more recent softer foods from an agriculture-based diet allow humans to retain the juvenile overbite
that had previously disappeared by adulthood, with the upper teeth slightly more in front than the lower teeth.
Measurements taken each year were overjet, overbite
; inter-canine width, canine length, inter-first deciduous molar width, inter-first premolar width, inter-first permanent molar width, arch length, molar depth, incisor irregularity, and available anterior space.
Los objetivos de tratamiento fueron: (1) Mantener la relacion esqueletica Clase III, (2) Establecer la relacion molar y canina Clase I, (3) Reposicionar incisivo superior en inferior, (4) Corregir la mordida cruzada anterior unilateral de canino e incisivo lateral superior izquierdo (5) Corregir la mordida bis a bis anterior y obtener overjet y overbite
adecuado, (6) Eliminar el apinamiento anterosuperior e inferior, (7) Corregir la linea media dental superior e inferior, (8) Establecer una relacion oclusal funcional, (9) Mejorar el perfil del tercio inferior, y (10) Mejorar la exposicion de los incisivos superiores en sonrisa.
The molar relationship, canine relationship, incisor relationship, horizontal incisal overlap (overjet in millimeter), vertical incisal overlap (overbite
%), cross bite (lingual or buccal) and the arch form (square, oval or narrow) were recorded.
He might look like an unlikely celebrity (big overbite
, receding jaw), but Tuna the chiweenie (a chihuahua/dachshund cross) boasts a social media following of over 2 million.
He had a pronounced overbite
and probably could never have stood in a chariot anyway.
A significant correlation also exists between curve of Spee and overjet, overbite
and irregularity index12.
The alignment of my teeth relapsed when I got older and went back to having an overbite
. My lower teeth became slightly crooked again, too.