A comparison of 800 Australian aboriginal skulls show that class III occlusions were more successfully passed on through genetics than other occlusal patterns. Such analysis revealed that the prognathic profile and mesially protruded class III mandible provided superior strength in incising and grinding food.
A) Both statements are true.
B) The first statement is true, the second is false.
C) The first statement is false, the second is true.
D) Both statements are false.

Question

Quizplus · Accepted Answer

In the 1930s, Dr. P. R. Begg determined that class I occlusions were more successfully passed on through genetics than other occlusal patterns. Begg documented that class II and III malocclusions caused serious physical afflictions through interference with proper masticatory function and increased dental disease.

A Comparison of 800 Australian Aboriginal Skulls Show That Class