Different planes: Overbite refers to overlap of teeth in an "up and down" direction (nose to chin), and overjet refers to a "back and forth" discrepancy (ear to lip). There is a wide variation among the population.
Answered 11/20/2015
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Jargon: Conventional dental terminology describes the normal vertical overlap of incisors, Overbite, as approximately 2mm. Overjet is the horizontal overlap of the incisors, also about 2mm. If your truly curious, ask for an initial examination at an Orthodontic Specialist's office, usually free, to determine your need for correction...if any at all.
Answered 7/12/2015
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