Necessity of postoperative amoxicillin prescription after incision and drain of vestibular space caused from odontogenic infection: a double-blind, randomized controlled trial study

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Wasitpon Wongweerakit
Surachai Apinawathavornkul

Abstract

The objective of this study was to evaluate the therapeutic effect of amoxicillin after incision and drain for odontogenic vestibular space infection. The design of this study was a double-blind, randomized controlled trial in 88 patients, age between 11-70 years that were diagnosed with odontogenic vestibular space infection, all patients denied immunocompromised medical conditions and history of allergy to beta-lactam antibiotics. The demographic data,chief complaint and clinical appearances were recorded. Preoperative amoxicillin 1 g oral was prescribed, then incision and drain, penrose drain application and extraction were performed.Two groups were simple randomized. The first group, was blinded with pracebo drug orally 3 times a day for 5 day postoperatively. The second group, amoxicillin 500 mg orally 3 times a day for 5 day postoperatively, was prescribed. All patients were evaluated in the follow-up visits on 2nd day and 7th day. For the results, 1 of 88 patients (1.1%) had postoperative infection after treatment and no severe complication was found. Chi-square test showed that  postoperative amoxicillin did not impact the results of the treatment. Therefore the necessity of postoperative amoxicillin prescription after incision and drain of odontogenic vestibular space infection is decreased, after adequate incision and drain and removal of infection cause in healthy patient.

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1.
Wasitpon Wongweerakit, Surachai Apinawathavornkul. Necessity of postoperative amoxicillin prescription after incision and drain of vestibular space caused from odontogenic infection: a double-blind, randomized controlled trial study. Thai J. Oral Maxillofac. Surg. [internet]. 2026 Aug. 29 [cited 2026 Sep. 1];34(2):85-94. available from: https://he02.tci-thaijo.org/index.php/thaijoms/article/view/284609
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