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the gingival sulci and embrasures and cover the gingival margin. Do not bend the filaments.? Vibrate the brush back and forth with very short strokes without disengaging the tips of the filaments from the sulci. Count at least 10 vibrations.? Apply the brush to the next group of two or three teeth. Take care to overlap placement? The entire stroke (Parts A through D, above) is repeated at each position around the maxillary and mandibular arches, both facially and lingually.Toothbrushing Precautions? For fluoride toothpaste, squeeze a pea size squirt of fluoride toothpaste on your bristles for children? Brush at least twice a day —just before going to bed and in the morning? Brush no more than three times a day —brushing too often can cause gums to recede over time. ? Brush for at least two minutes —Longer is fine, but two minutes is the minimum time needed to adequately clean all your teeth.? Brush lightly — brushing too hard can cause gums to recede. Plaque attaches to teeth rather like jam sticks to a wooden spoon. Try holding your toothbrush the same way you hold a pen. ? Have a standard routine for brushing — try to brush your teeth in the same order every day. ? Always use a toothbrush with soft or extra soft bristles — the harder the brush, the greater the risk of harming gum tissue. ToothpickDental FlossInterproximal brush gingival massageSupergingival Scaling。PREVENTIVE DENTISTRYOuyang Yong Department of Preventive DentistryGuanghua College of Stomat