contacts between maxillary and mandibular teeth.

Angle’s Class System

• Class 1
• Class 2
• Class 3

BSI - British standard incisal classification

Focuses on incisors

• Class 1
• Class 2
• Class 3

Supporting cusps - maintain vertical dimension

2 forms of lateral guidance: moving teeth from side to side, group function: several teeth in contact

ICP - intercuspal position when people bite down their normal bite