Publication date: October 2018
Source: Journal of Oral and Maxillofacial Surgery, Volume 76, Issue 10
Author(s): Reza Tabrizi, Isa Khaheshi, Afshin Hoseinzadeh, Babak Rezvanpour, Shervin Shafie
Purpose
Cessation versus continuation of antiplatelet drugs in patients undergoing dental implant surgery is a controversial issue. The present study evaluated postoperative bleeding during and after dental implant surgery in patients taking aspirin (ASA) or clopidogrel.
Material and Methods
The present study is a case-and-crossover study. Patients who were using antiplatelet drugs and receiving 2 bilateral dental implants in the posterior region of the mandible were studied. During session 1, dental implants were placed without stopping the intake of antiplatelet drugs. During session 2, antiplatelet drugs were stopped for 5 days. In group 1, platelet activity was measured by an assay based on flow cytometry and represented the platelet reactivity index. In group 2, platelet function analysis was used to monitor the antiplatelet effect of ASA. Bleeding severity was assessed using a visual analog scale for 72 hours after dental implant placement during sessions 1 and 2. Use of antiplatelet drugs was the predictive factor of the study and bleeding severity and platelet function were the outcomes of the study.
Results
Twenty-two patients composed group 1 (clopidogrel 75 mg) and 20 composed group 2 (ASA 80 mg). In group 1, bleeding severity was 4.86 ± 0.77 during session 1 and 4.59 ± 0.66 during session 2. Data analysis showed no difference in bleeding severity between sessions 1 and 2 in group 1 (P = .72). In group 2, bleeding severity was 4.05 ± 0.94 during session 1 and 3.9 ± 0.85 during session 2. There was no difference in bleeding severity between sessions 1 and 2 in patients taking ASA (P = .19).
Conclusion
The results suggest that continuing the intake of antiplatelet drugs did not increase bleeding after placement of dental implants.
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