Characteristics of "group-function" occlusion

The characteristics of "group-function" occlusion are:

A. The teeth on the non-working side make contact in lateral excursion.
B. The teeth on the working side make contact in lateral excursion.
C. Only the canine and lateral incisors make contact in lateral excursion.
D. The posterior teeth on both sides make contact in lateral excursion.


Ans is B

Unilateral balanced occlusion, which is also commonly known as group function, is a widely accepted and used method of tooth arrangement in restorative dental procedures today. Therefore, unilateral balanced occlusion calls for all teeth on the working side to be in contact during a lateral excursion. On the other hand, teeth on the nonworking side are contoured to be free of any contact. The group function of the teeth on the working side distributes the occlusal load The absence of contact on the nonworking side prevents those teeth from being subjected to the destructive, obliquely directed forces found in nonworking interferences.