To get the most from the arched bristle arrangement, place the brush so that the bristles follow the curve of your teeth rather than pressing the head flat against them. Angle the bristles about 45 degrees toward the gumline, which is the same basic technique recommended for any manual brush. Use short, gentle strokes or small circular movements, and let the central raised tuft reach into the grooves and uneven areas of the chewing surfaces.
The flexible neck is there to signal when you are brushing too hard. If you feel the neck bend and the handle tilt, ease off the pressure. You do not need to scrub. The compact head is meant to make each stroke more precise, so take your time and move along the outer, inner, and chewing surfaces of each tooth. For the back teeth, the smaller head lets you get into the area behind the last molar more easily.
After brushing, use the tongue-cleaning pad to gently remove plaque from the surface of the tongue. Rinse the brush and store it upright in an open holder so it can dry between uses. When the bristles begin to splay outward, the brush no longer cleans effectively and should be replaced.