<dentistry> Poor positioning or inappropriate contact between the teeth on closure.

Class I Malocclusion: A Malocclusion where your bite is OK (your top teeth line up with your bottom teeth) but your teeth are crooked, crowded or turned.

Class II Malocclusion: A Malocclusion where your upper teeth stick out past your lower teeth. This is also called an overbite or buck teeth.

Class III Malocclusion: A Malocclusion where your lower teeth stick out past your upper teeth. This is also called an underbite.

(08 Jan 1998)