Association of Dental Caries with Different ABO Blood Groups

BACKGROUND: ABO blood type affects general and oral health, as salivary physiochemical features are different among various blood kinds. Thus, these may affect the dental caries severity. This work studied the caries experience prevalence in individuals displaying various blood types. This work tested the association between ABO blood group and dental caries. Also, this work evaluated which ABO groups are associated with a higher vulnerability to dental caries. MATERIALS AND METHODS: Sixty Tikrit University students were randomly selected and were put into four groups based on blood type, and dental caries experience was diagnosed and scored based on the index of Decay Missing Filling Teeth and Surfaces (WHO, 2013). This index scores caries lesions by severity. RESULTS: The blood type O was the most frequent (37%), followed by B, A, and AB types. Caries experience (DMFS and DMFT) was statistically significantly higher among the B blood group (P<0.05).  CONCLUSION: ABO blood group was associated with dental caries disease.