What is ordo sonic brush heads 4 pack 4 brush headscolour pearl violetcompatible with ordo sonic toothbrushfeatures soft and individually rounded bristles for a clean thats gentle on gums and tooth enamel, yet tough on plaque. Silicone polishing element works with the bristles to help remove surface stains. Slim brush head for hard to reach areas. Sonic pulse technology utilises fluid dynamics to clean deep between teeth.superior plaque removalvs a manual toothbrushcompatible with ordo sonic toothbrush what are the key features tough on plaque gentle on gums silicone polishing element cleans deep between teeth usage how to use ordo sonic brush heads 4 pack dentists recommend replacing your brush head every 2 3 months.replace sooner if bristles become worn or frayed.directions before connecting new brush head clean any toothpaste residue from your sonic handle. Slide brush head onto pin until it clicks into place. Rinse brush head before first use and rinse thoroughly after each use.usage