Overjet


 * Is the abnormal distance between the tip of the upper and the tip of the lower incisors in the horizontal plane
 * The normal distance is ~ 1.5-2.5 mm
 * We distinguish two types of overjet:
 * 1) Positive overjet --> Distance >2.5 mm
 * 2) Negative overjet (anterior cross bite) --> Distance <1.5 mm