Discussion
bleeding, postoperative bleeding, smoking habits, tooth
EVENTS, MINOR, POSTOPERATIVE BLEEDING, BLEEDING
Generally, simple tooth extraction is interpreted as a procedure with a low risk of postoperative bleeding [However, there is no evidence for oral surgery patients taking direct FXa inhibitors [Rivaroxaban is the most commonly used FXa inhibitor. Generally, a minor postoperative bleeding risk of 4–7% in patients taking rivaroxaban is described, and significant bleeding events with subsequently decreased hemoglobin or need for transfusion account for only 1–2% [In a literature review by Wahl et al., the authors suggested that all but 2% of bleeding events of all dental surgical procedures could be controlled by local hemostatic measures [Mourao et al. found a positive influence of PRF on extraction sockets in patients receiving anticoagulant therapy. The study, however, did not include information about early postoperative bleeding, and PRF was used in all patients without a control group [Interestingly, prolonged oozing was observed in patients over 85 years. That may indicate the clinical relevance of the patient’s age, probably due to minor kidney function or other age-related factors. However, a higher number of elderly patients should be included for reliable results. Besides, the present study detected a potential correlation between smoking habits and postoperative oozing. No oozing in younger smokers (< 60 years) and prolonged oozing ≥ 1.5 h in an elderly patient (89 years old) with a smoking habit was observed. Nevertheless, because of the small number of patients with smoking habits, the data cannot be reliable and further studies are required. Furthermore, a second control group without any hemostatic agent was not included as historical data shows that the bleeding without hemostatic measures is significantly higher in anticoagulated patients [