Journal of Forensic Dental Sciences
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Year : 2017  |  Volume : 9  |  Issue : 1  |  Page : 6-9

The credibility of dental pulp in human blood group identification

Department of Public Health Dentistry, People's Dental Academy, People's University, Bhopal, Madhya Pradesh, India

Correspondence Address:
Binu Santha
Department of Public Health Dentistry, People's Dental Academy, People's University, Bhopal, Madhya Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0975-1475.206477

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Background: The identification of unknown individual has always been of paramount importance to the society. Blood groups are excellent aids to these pursuits. Dental tissue acts beneficial because tooth is the hardest of all human tissues, and they can be preserved intact for a long period of time after the death of the individual. Hence, this study is conducted to evaluate the role of dental pulp in identification of human blood group. Aim: To determine the ABO blood grouping from the pulpal tissue of an extracted tooth and to correlate the same with blood group details obtained from the study subjects. Materials and Methods: This is a double-blinded randomized controlled trial conducted on a sample of thirty extracted teeth. The teeth were stored dry for 2 months. An attempt to establish the blood group from pulp was made by absorption-elution method. The collected data were coded, and statistical analysis was carried out using Statistical Package of Social Science (SPSS Version 20). Cronbach's alpha was applied to check the reliability of the absorption-elusion method in the detection of blood group from dental pulp. Results: Blood groups obtained from the pulp were compared with those obtained from the study subjects. Blood group establishment from dental pulp using absorption-elusion method had a good internal consistency in comparison with the conventional Karl Landsteiner's blood typing method. This study showed that pulp tissue is a reliable method to detect blood groups of individuals. Conclusion: It can be concluded that dental pulp can be used to establish identity, where teeth happen to be the only remnants available for personal identification.

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