Correlation between blood group and dental caries in 20-60 years age group: A study

Background: The correlation between certain systemic diseases and ABO blood group is a well-documented fact. The studies conducted on the association between dental caries and ABO blood group till date are limited. Here is a study conducted to find out whether blood group affects the prevalence of dental caries. Materials and Methods:- A total of 100 patients of 20-60 yrs age group attending the outdoor of Conservative Dentistry&Endodontics were randomly selected for the study. Only patients holding a certified copy indicating blood group obtained from a registered pathological laboratory were selected for the study. Dental caries was scored using WHO index and DMFT score was calculated from it. Results:- Blood group B was found to be more prevalent among the subjects and B+ blood group patients had the highest mean DMFT score and AB+ the lowest among all groups but the results were not stastistically significant.Conclusion:- there is no correlation between blood group and dental caries found in the study. Further studies need to be conducted on a larger population to derive any conclusive results on whether the ABO blood group system has any influence on the prevalence of dental caries.