TY - JOUR A1 - Harks, Inga A1 - Koch, Raphael A1 - Eickholz, Peter A1 - Hoffmann, Thomas A1 - Kim, Ti-Sun A1 - Kocher, Thomas A1 - Meyle, Jörg A1 - Kaner, Doğan A1 - Schlagenhauf, Ulrich A1 - Doering, Stephan A1 - Holtfreter, Birte A1 - Gravemeier, Martina A1 - Harmsen, Dag A1 - Ehmke, Benjamin T1 - Is progression of periodontitis relevantly influenced by systemic antibiotics? : a clinical randomized trial T2 - Journal of clinical periodontology N2 - Aim: We investigated the long-term impact of adjunctive systemic antibiotics on periodontal disease progression. Periodontal therapy is frequently supplemented by systemic antibiotics, although its impact on the course of disease is still unclear. Material & Methods: This prospective, randomized, double-blind, placebo-controlled multi-centre trial comprising patients suffering from moderate to severe periodontitis evaluated the impact of rational adjunctive use of systemic amoxicillin 500 mg plus metronidazole 400 mg (3x/day, 7 days) on attachment loss. The primary outcome was the percentage of sites showing further attachment loss (PSAL) ≥1.3 mm after the 27.5 months observation period. Standardized therapy comprised mechanical debridement in conjunction with antibiotics or placebo administration, and maintenance therapy at 3 months intervals. Results: From 506 participating patients, 406 were included in the intention to treat analysis. Median PSAL observed in placebo group was 7.8% compared to 5.3% in antibiotics group (Q25 4.7%/Q75 14.1%; Q25 3.1%/Q75 9.9%; p < 0.001 respectively). Conclusions: Both treatments were effective in preventing disease progression. Compared to placebo, the prescription of empiric adjunctive systemic antibiotics showed a small absolute, although statistically significant, additional reduction in further attachment loss. Therapists should consider the patient's overall risk for periodontal disease when deciding for or against adjunctive antibiotics prescription. KW - amoxicillin/metronidazole KW - attachment loss KW - clinical relevance KW - debridement KW - outcome parameter KW - periodontitis KW - randomised controlled trial KW - systemic antibiotics Y1 - 2017 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/42801 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-428010 SN - 1600-051X SN - 0303-6979 N1 - © 2015 The Authors. Journal of Clinical Periodontology Published by John Wiley & Sons Ltd. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made. VL - 42 IS - 9 SP - 853 EP - 842 PB - Wiley-Blackwell CY - Oxford [u. a.] ER -