A Note on Shovel-shaped Incisor, Instanding Lateral Incisor and Occlusal Type of Incisors in Koreans

Abstract

The study was made on shovel-shaped incisors, instanding lateral incisors and the occlusal types of incisors in 960 Koreans and the following conclusions were drawn. 1) The incidence of both marked shovel and semishovel is greater in males, 95.5%, than that in females, 87.1%. 2) The incidence of the instanding lateral incisors is greater in famales, 21.9%, than that in males, 14.2%. 3) There appears to be no sexual difference in occlusal types of the incisors. The incidence of the labidodont type is 4.4%, of the overbite is 0.9%, and of the protrusive is 0.5%.