Journal of Anatomy

Short Report

Variation in shape of the lingula in the adult human mandible

A. TULI a1c1, R. CHOUDHRY a1, S. CHOUDHRY a2, S. RAHEJA a1 and S. AGARWAL a1
a1 Department of Anatomy, Lady Hardinge Medical College, New Delhi, India
a2 ICARE Hospital, Noida, U.P., India


The lingulae of both sides of 165 dry adult human mandibles, 131 males and 34 females of Indian origin, were classified by their shape into 4 types: 1, triangular; 2, truncated; 3, nodular; and 4, assimilated. Triangular lingulae were found in 226 (68.5%) sides, truncated in 52 (15.8%), nodular in 36 (10.9%) and assimilated in 16 (4.8%) sides. Triangular lingulae were found bilaterally in 110, truncated in 23, nodular in 17 and assimilated in 7 mandibles. Of the remaining 8 mandibles with different appearances on the 2 sides, 6 had a combination of triangular and truncated and 2 had nodular and assimilated. The incidence of triangular and assimilated types in the male and female mandibles are almost equal. In the truncated type it was double in the male mandibles while the nodular type was a little less than double in the female mandibles.

(Accepted March 14 2000)

Key Words: Osteology; mandible; lingula.

c1 Correspondence to Dr A. Tuli, D-163, Anand Vihar, Delhi 110092, India.