From the Latin for "to close", it's the alignment & spacing of your upper & lower teeth when you bite
[DOC] [TLE] orthodontist Benton IL Archives - Childers Braces [PAR] It's important to know how many appointments may be needed and what you will 
need to do ... During your consultation, we can evaluate your teeth and jaw 
alignment to determine the ... Overbite  when the upper teeth overlap the lower 
teeth by more than 5mm ....