A Molar with Little or No Curvature on the Buccal

Question

A molar with little or no curvature on the buccal surface would result in
A) open contact area
B) overstimulation of gingiva
C) inadequate stimulation of gingiva
D) difficult oral hygiene access

Accepted Answer

Curvature of the buccal and lingual surfaces provides the right amount of gingival stimulation by deflecting food.Inadequate curvature results in too much deflection of food,which causes overstimulation of the gingival tissues.This action,combined with food being forced into the gingival crevice,contributes to gingival inflammation,periodontal disease,or tissue recession.The shapes of teeth aid greatly in prevention of periodontal disease.