Incidence of Frontal or Metopic Suture Amongst Punjabee Adults

Frontal bone is developed in two halves. At birth they are united together by frontal or myopic suture which usually disappears between sixth and tenth years. In some individuals this suture remains complete throughout life and the condition is called ' MetopismMetopism is said to be more frequent amongst higher races than amongst lower races and in brachycephalics than in dolichocephalics. According to Gray (1946) it is present in 9 per cent of skulls. According to Rau (1934) metopism -was present in 4 per cent of cases in skulls representing the Dravidians of the Madras Presidency. No case of metopism is seen in anthropoid apes though according to Schwalbe (quoted by Rau, 1934) it is found in Colobus and Semnopithecus. The remains of the frontal suture can be seen in a large number of adult skulls at or about glabella. No statistics are, however, available regarding their percentage and appearances.