Association of ABO Blood Group and Rh factor with Periodontal Disease in a Population of Virajpet, Karnataka: A Cross-Sectional Study.

Background: The purpose of the present study was to determine whether there was an association between periodontal diseases and ABO blood groups.

Materials & Methods: An epidemiological study was was carried out on 220 subjects who were randomly selected from individuals referred for periodontal treatment or for other reasons regarding Oral health at Coorg Institute of Dental Sciences.

Results: The findings of our study revealed that subject's blood group O (65.