Our patients expect from us as dental professionals to recommend and instruct them in proper oral hygiene routines. The right choice of oral hygiene tools and techniques is challenging as there are many products available on the mark. The differences and effects between Ultrasonic, Sonic and Rotating toothbrushes are important but often also mixed by experts. In this lecture Prof. Saxer shares the latest scientific evidence on power toothbrushes and gives his professional advice and tips on hydrosonic toothbrushes. Next topics will be presented: Importance of oral biofilm (microbiome) on gut microbiome and overall health Superior biofilm removal from oral tissues, according to latest scientific evidence Advantages of sonic toothbrushes over other toothbrushes Gentleness on gums and teeth: enamel and dentin Use of sonic toothbrushes in patients with orthodontic appliances, misalignment, sensitivity, recession, or periodontal problems.