PMID- 34057339 OWN - Quintessenz Verlags-GmbH CI - Copyright Quintessenz Verlags-GmbH OCI - Copyright Quintessenz Verlags-GmbH TA - Oral Health Prev Dent JT - Oral Health and Preventive Dentistry IS - 1757-9996 (Electronic) IP - 1 VI - 19 PST - epublish DP - 2021 PG - 295-299 LA - en TI - The Relationship Between Periodontal Disease and ABO Blood Groups: A Cross-Sectional Study LID - 10.3290/j.ohpd.b1452963 [doi] FAU - Al-Askar, Mansour AU - Al-Askar M FAU - AlMoharib, Hani S. AU - AlMoharib H FAU - Alaqeely, Razan AU - Alaqeely R FAU - Talakey, Arwa A. AU - Talakey A FAU - Alzoman, Hamad AU - Alzoman H FAU - Alshihri, Abdulmonem AU - Alshihri A CN - OT - ABO blood-group system OT - genetic OT - gingivitis OT - periodontitis OT - Rh-Hr blood-group system AB - Purpose: The objective of this cross-sectional study was to evaluate the relationship between ABO blood groups and periodontal diseases. Materials and Methods: Four hundred sixteen subjects (223 females, 193 males) were recruited according to the eligibility criteria. Periodontal examination was performed, including full-mouth plaque index (PI), bleeding on probing (BOP), clinical attachment level (CAL), and interproximal bone loss (IBL). ABO blood group patterns were determined based on self-reports, confirmed by medical records. The chi-squared test was done to evaluate the data (p < 0.05). Results: Out of the 416 subjects, 52.2% were blood group O, whereas 27.8% were blood group A. 46.8% of patients with blood group O had gingivitis and 49.6% had periodontitis. 31.2% of patients with blood group A had gingivitis,while 29.5% had periodontitis. The blood group with the lowest percentage among patients with gingivitis was AB, with a rate of 6.2%; in this blood group, 8.1% had periodontitis. Conclusions: There is no association between periodontal diseases and ABO blood group types. AID - 1452963