Antibiotics in Periodontics

These guidelines address the administra­tion of systemic antibiotics in periodontics, especially in the treatment of periodontitis, necrotizing gingivitis/periodontitis, peri­odontal abscess and peri­implantitis. Micro­organisms associated with these conditions aggregate as structured biofilms on tooth sur­faces, and biofilms effectively protect micro­organisms from antibiotics. It is therefore a central principle to use antibiotics only as adjunct to mechanical debridement. In fact, many cases can be resolved by mechanical therapy even without the prescription of antibiotics. Good oral hygiene is crucial for long­term success.