This cross-sectional study investigates the association between ABO blood groups, dental caries, and tooth impaction in a sample of 120 subjects from Malabar Dental College and Research Centre. Participants aged 20 to 60 years underwent oral health examinations, including blood group determination, DMFS index assessment for caries, and intraoral radiographs for impaction confirmation. Statistical analysis using SPSS 26.0 revealed a significant association between B blood group and higher mean DMFS scores for dental caries. However, no significant association was found between blood groups and impacted third molars. These findings suggest a potential role of blood types as a risk factor for dental caries but warrant further investigation with larger and diverse populations.
