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Optimal dose and duration of amoxicillin-plus-metronidazole as an adjunct to non-surgical periodontal therapy: A systematic review and meta-analysis of randomized, placebo-controlled trials.

Kelly McGowanTroy McGowanSašo Ivanovski
Published in: Journal of clinical periodontology (2017)
There was no clinically meaningful difference between different doses or duration of amoxicillin-plus-metronidazole at 3 months post-treatment. Without compelling evidence to suggest that any one regimen performed superiorly, principles of responsible antibiotic use generally recommend the highest dose for the shortest duration of time to reduce the risk of antibiotic resistance. Therefore, a 7-day regimen of 500/500 mg or 500/400 mg of amoxicillin and metronidazole would be most appropriate.
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