A comparative evaluation between dermatoglyphic patterns and different terminal planes in primary dentition

BACKGROUND: To assess the correlation between different dermatoglyphic patterns with the terminal planes in deciduous dentition. MATERIAL AND METHODS: 300 children who are 3-6 years old with complete primary dentition were recruited and the pattern of molar terminal plane was recorded in the proforma. Finger prints of the distal phalanges of these subjects were recorded using ink and roller method and were analysed for the finger print pattern by a forensic specialist. The pattern were classified based on classification given by Galton. The finger ridge counts were also measured. RESULTS: Ulnar loop pattern was the most predominant dermatoglyphic pattern. Absence of arch pattern in ring and little fingers of left hand and higher ridge count in left little finger when compared to the right hand were related to Mesial step. Presence of whorl pattern in both right and left middle finger and higher total finger ridge count in left hand when compared to the right hand were related to distal step. Flush terminal plane was related to absence of arc pattern in ring finger of left hand. CONCLUSIONS: Dermatoglyphics can be used as a non invasive analytical tool to predict the terminal plane in primary dentition. Key words:Dermatoglyphics, terminal planes, primary dentition.