Journal of Forensic Dental Sciences
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Year : 2013  |  Volume : 5  |  Issue : 1  |  Page : 28-34

ABO blood grouping from hard and soft tissues of teeth by modified absorption-elution technique

1 Departments of Oral Medicine, Diagnosis, and Radiology, Dayananda Sagar College of Dental Sciences and Hospital, Shavige Malleswara Hills, Bangalore, Karnataka, India
2 Department of Oral Medicine and Radiology, V.S. Dental College and Hospital, V V Puram, Bangalore, Karnataka, India
3 Department of Pathology, Kempegowda Institute of Medical Sciences and Research Centre, Banashankari, Bangalore, Karnataka, India

Correspondence Address:
B K Ramnarayan
Departments of Oral Medicine, Diagnosis, and Radiology, Dayananda Sagar College of Dental Sciences and Hospital, Shavige Malleswara Hills, Bangalore - 560 078, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0975-1475.114559

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Background: Teeth have always been known as stable tissue that can be preserved both physically and chemically for long periods of time. Blood group substances have been known to be present in both the hard and soft tissues of the teeth. Objectives: This study aimed at detection of ABO blood group substances from soft and hard tissues of teeth and also to evaluate the reliability of teeth stored for a relatively long period as a source of blood group substances by absorption-elution technique with some modifications. Results: Blood group obtained from the teeth was compared with those obtained from the blood sample. Pulp showed a very large correlation in both fresh and long-standing teeth though it decreased slightly in the latter. Hard tissue showed a large correlation in both the groups indicating that hard tissue is quite reliable to detect blood group and that there is no much difference in the reliability in both the groups. However, combining pulp and hard tissue, correlation is moderate. Correlation of blood grouping with the age, sex, and jaw distribution was carried out. Conclusion: Blood group identification from hard and soft tissues of teeth aids in the identification of an individual.

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