Hereditary Resemblances of Lip Prints Among the Members of Biological Families

Abstract

Objective: To assess the resemblance of lip prints among the members of biological families, involving identical twins. Study Design: Descriptive study. Place and Duration of Study: Department of forensic medicine & toxicology, post-graduate medical institute/university of health sciences Lahore December 22, 2014, to December 22, 2016. Materials and Methods: A total of 216 individuals (father, mother and both the children), who underwent observational study of lip impression collection without any anesthesia or drug, were enrolled into the present study. Father, mother and both identical twins of each family were selected. Lip prints of Father, mother and both twins of each family were recorded. Each lip of 54 twin offspring was compared with the corresponding lip of his/her father, mother, and other identical twin in the same family twin. Results: Out of 54-total families, monozygotic twins of 19(35.18%) families observed resemblance with father, whereas monozygotic twins of 35(64.81%) families observed resemblance with mother. There was no definite identical lip print pattern observed in any of the children. Furthermore, the prevalence of Type II lip prints was higher type present in males and in females. Conclusion: Lip prints of study participants do not match with each other. They are not identical with other twin baby or either parents but have some resemblance features. Like fingerprints, lip print patterns are unique, and it is considered feasible to apply lip prints features in personal identification.