Use cleaning heads and professional polishing paste or toothpaste to thoroughly clean your teeth. There are 3 boxes of polishing paste (coarse, medium and fine) in the package. You can use toothpaste instead after use. You can also buy it online and it is easy to buy. Deep cleaning of tooth surface. Note: Move the cleaning head back and forth; When your teeth feel hot, stop and let your teeth rest. Deep cleaning between teeth and back of teeth. Note: Move the cleaning head back and forth; When your teeth feel hot, stop and let your teeth rest. Deep cleaning of the tops and backs of teeth. Note: Move the cleaning head back and forth; When your teeth feel hot, stop and let your teeth rest. Use polishing heads and professional polishing paste or toothpaste to polish, make teeth smooth, whitening, natural There are 3 boxes of polishing paste (coarse, medium and fine) in the package. You can use toothpaste instead after use. You can also buy it online and it is easy to buy. Polish tooth surface Note: Move the polish head back and forth; When your teeth feel hot, stop and let your teeth rest. Polishing between teeth Note: Move the polish head back and forth; When your teeth feel hot, stop and let your teeth rest. Deep polishing of the tops and backs of teeth. Note: Move the cleaning head back and forth; When your teeth feel hot, stop and let your teeth rest. Install, replace cleaning or polishing heads, and cleaning after use