Nabeel Abdul Vahid
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Comparison of Palatal Rugae Pattern among Indian and Malaysian Population Firoz Ismail; Rejeeh.E.P; Rajesh.H; Nabeel Abdul Vahid
Indian Journal of Forensic Medicine & Toxicology Vol. 15 No. 2 (2021): Indian Journal of Forensic Medicine & Toxicology
Publisher : Institute of Medico-legal Publications Pvt Ltd

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37506/ijfmt.v15i2.14723

Abstract

Background: Tools for establishing identity is invaluable part of forensic sciences form the beginningof the profession. Odontology is one of such branches which in early days started in its crude form withidentification of different species and races within the species, currently is an individual subject withspecialist societies, journals and courses. Palatal rugae, was identified to be a potential tool for establishingidentity few centuries back itself but is not validated even today to be part of standard protocols. This is apilot study comparing two racial groups i.e., Indian and Malaysian with established parameters for palaterugae aiming at testing the feasibility of the parameters to be used in identification of individuals and racialgroups and also to provide preliminary data to make way to larger studies.Aims and Objectives: The aim of this pilot study is to explore the feasibility of palate prints as tool foridentification by, studying palate print in Indian and Malaysians and Comparison of plate Rugosity betweenIndians and Malaysians students for identification.Methodology: Study population was male Indian and Malaysian Medical and Dental students, age between18-25 years studying at Mangalore, India. Sample size 80 (40 in each group); were selected for studying ofPalatal Rugae. The palate impressions were collected using maxillary alginate cast. The parameters assessedwere: Total number of rugae, number of primary rugae (length- 5 to 10 mm), secondary rugae (3-5mm),fragmentary rugae (less than 3 mm). Comparison for two populations was done using non-parametric MannWhitney Test.Results: There were no statistically significant differences among the Indians and Malaysians in totalnumber and number secondary rugae in both sides more in Indians than Malaysians.There was statistically significant difference in number of the primary rugae and the fragmentary rugae,which in both sides were more in Indians than Malaysians.Conclusion: In conclusion, palatal rugae pattern are unique to an individual and their use in forensicidentification has been advocated and applied. Our study demonstrated significant difference in the numberof primary rugae on each side. It was more in Indians than Malaysians. This study demonstrated theuniqueness of rugae pattern in different individuals. Thus, it appears to be an effective & reliable source ofidentification.
Shape and Unification Pattern of Palatal Rugae as a Race Identification Tool- A Cross-Sectional Study Firoz Ismail; Rejeesh.E.P; Rajesh.H; Nabeel Abdul Vahid
Indian Journal of Forensic Medicine & Toxicology Vol. 15 No. 2 (2021): Indian Journal of Forensic Medicine & Toxicology
Publisher : Institute of Medico-legal Publications Pvt Ltd

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37506/ijfmt.v15i2.14724

Abstract

Background: One of the integral parts of forensic medicine is identification of individuals from biologicalsamples and from the anatomical signatures. Identification of individuals, races, species, gender from theanatomical signatures of teeth and oral cavity is one of such branches which existed in practice in crudeform even before origin of the Forensic odontology as a specialization. Individual variations in Palatal rugaepattern, and its biometric value as a potential tool for establishment of identity was reported centuries back. It’snot standardised or included in the regular standard protocols even today in the age of artificial intelligence.In this pilot study we are comparing two racial groups i.e., Indian and Malaysian with established parametersfor palate rugae with an objective of testing feasibility and validation for identification of individuals andracial groups and also to provide preliminary data for larger studies.Aims and Objectives: The aim of this pilot study is to explore the feasibility of palate rougoscopy as a toolfor race identification by studying the shape and unification Pattern of Palatal Rugae in Indian and Malaysianpopulation.Methodology: Study population was male Indian and Malaysian Medical and Dental students, aged 18-25years studying at Mangalore, India. Sample size 80 (40 in each group); were selected for studying PalatalRugae. The palate impressions were collected using maxillary alginate cast. The parameters assessed were:shape an unification based on classification of Thomas & Kotze. Comparison for two populations was doneusing non-parametric Mann-Whitney Test.Results : Predominant Shape: The Curvy patterns were more common in Malaysians compared to Indian.The Wavy patterns were more common in Malaysians than Indians.The Circular patterns were more commonin Indians than Malaysians.Predominant unification: Diverging patterns were more in Malaysians than Indians and Converging patternswere more in Indians than Malaysians and statistically significant.Conclusion : In the present study the Malaysians had predominantly curvy and wavy patterns and Indianshad circular shapes. Straight patterns were seen equally in both the populations. Although unification ofthe palate rugae was seen, the diverging patterns is more in Malaysians and Converging patterns more inIndians.