Abstract
Postoperative antibiotics are commonly administered in orthognathic surgery, despite the fact that there is no consensus regarding their efficacy. The objective of this study was to investigate the effectiveness of postoperative antibiotics in orthognathic surgery by conducting a prospective, randomized, double-blind, placebo-controlled trial.Patients were randomly allocated into one of two study groups: the intervention group (treated with 1 g of intravenous (IV) amoxicillin-clavulanate TID) or the placebo group (treated with 50 mL of IV 0.9% NaCl TID). The infection rate was assessed using clinical and laboratory parameters.The intervention group included 38 patients, with 40 patients in the placebo group. Baseline and surgical characteristics were comparable between both groups. Mean postoperative C-reactive protein (CRP) and temperature were similar for both groups. Serous discharge was observed in two patients (both in the placebo group), and one of them required surgical intervention. Overall, infection rate was similar in both groups (p-value > 0.1).To conclude, administration of postoperative antibiotics in healthy, young patients undergoing orthognathic surgery did not show a significant advantage in reducing surgical infection rate.
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