Analisis Pewarisan Rugae Palatal untuk Identifikasi Forensik pada Keluarga Keturunan Suku Batak

Abstract

The formation of palatal rugae is regulated by genes, thus allowing for similarities in palatal rugae between fathers, mothers, son, and daughter. Rugae palatal as individual identification are used when other methods such as incomplete antemortem dental records cannot be used. Purpose: to determine distribution, mean, pattern of dominant rugae palatal, similarities in number and pattern of rugae palatal, and correlation in number and pattern of rugae palatal in families of bataknese lineage. Method: observational analytic with cross-sectional design. The sample consist of three groups, 22 study models of the father's upper jaw, 22 study models of the mother's upper jaw, 11 study models of the upper jaw of son, and 11 study models of the upper jaw of daughter. Results: the mean number of palatal rugae in fathers group was 10.41 ± 2.11 rugae, mothers group 9.50 ± 1.65 rugae, son group 9.36 ± 2.87 rugae, and daughters group 11.36 ± 2.54 rugae. The most palatal rugae by size was primary, by shape was wavy, and by unification was divergent. The similarities by number of rugae palatal in were found in mother-daughter, the size of the primary and wavy shape in father-son, father-daughter, mother-son, and mother-daughter, curve shape in father-son, and father-daughter, divergent unification in father-son, and father-daughter. Spearman's rho correlation coefficient test showed a significant relationship of similarity in number between mother-daughter (p=0.000), by size in father-son, father-daughter, mother-son, and mother-daughter (p=0.000 ), by pattern in father-son, father-daughter, mother-child son, and mother-daughter (p=0.000), by unification in father-son (p=0.009). Conclusion: the similarity in the number and pattern of palatal rugae is assumed to occur due to the role of heredity.