Background:Periodontal debridement has an impact on the vascular thrombotic markers in healthy individuals. This study aimed to investigate changes in several vascular thrombotic markers after surgical and non-surgical periodontal debridement in hypertensives with periodontitis.Materials and Methods:40 hypertensives, 27 males and 13 females, 37-68 year old, mean 51.2 years, with moderate to severe periodontitis, were divided into two groups, (n = 20 for each); the first received comprehensive one session non-surgical periodontal debridement, (pockets 4-6 mm), while the second received comprehensive supragingival scaling with surgical debridement at one quadrant, (Pockets > 6 mm). Periodontal parameters included; plaque index (PI), gingival inflammation (GI), bleeding on probing (BOP), pocket probing depth (PPD). Vascular thrombotic tests included; platelets count (Plt), fibrinogen (Fib), Von Willebrand factor antigen activity (vWF:Ag), and D-dimers (DD).Results:PI, GI, BOP, PPD, decreased significantly (P = 0.001) after 6 weeks of periodontal debridement in both groups, while BOP and PPD remained higher in the surgical one (P < 0.05). Thrombotic vascular markers changes through the three-time intervals were significant in each group (P = 0.001), and time-group interception effect was significant for vWF:Ag (P = 0.005), while no significant differences between groups after treatment (P > 0.05).Conclusion:Periodontal debridement, surgical and non-surgical, improved the periodontal status in hypertensives. Periodontal treatment activated the coagulation system in hypertensives and recessed later while the treatment modality did not affect the degree of activation.