Dr Jan H Koch shares with readers why Guided Biofilm Therapy is patients’ preferred professional prophylaxis protocol. Guided biofilm therapy (GBT) is suitable for both primary preventive professional mechanical plaque removal (PMPR), as well as secondary preventive periodontitis and peri-implantitis therapy, depending on the risk and need. To determine patients’ preferred method for professional prophylaxis in line with best practice protocols, prevention-oriented practices worldwide have surveyed over 250,000 patients through questionnaires. This has revealed over 92% of respondents prefer GBT compared to the old method.