Introduction
This page contains information on some of the basic definitions of occlusal traits that you need to know before learning about IOTN.
After clicking on the video, press F11 key for Full Screen viewing. Press the F11 key to exit Full Screen mode.
Overjet
The horizontal displacement between the labial surface of the tips of the upper incisors and the labial surface of the lower incisors.
Overbite
The extension of the maxillary teeth over the mandibular teeth in a vertical direction when the opposing teeth are in the intercuspal position.
Displacement Measurement
The difference in contact point between two adjacent teeth in bucco-lingual direction.
Crossbite
A transverse discrepancy in tooth relationships. In a buccal crossbite the lower arch is wider than the upper arch so that the buccal cusps of mandibular teeth occlude laterally to the buccal cusps of the maxillary teeth.
Openbite
Failure of some opposing teeth to occlude when others are in maximal intercuspation.