Competing interests
All authors have no conflicts of interest to declare. On behalf of all authors, the corresponding author states that there is no conflict of interest. The German Ministry of Education and Research (funder) and companies (Sage Products/Stryker, Schülke) funding products and the investigation of tolerances of bacterial isolates to chlorhexidine and octenidine by an independent laboratory had no role in study design, data collection and analysis, data interpretation, the decision to publish, or the preparation of the manuscript.