Teeth cleaning is part of oral hygiene and involves the removal of dental plaque from teeth with the intention of preventing cavities (dental caries), gingivitis, and periodontal disease.

People routinely clean their own teeth by brushing and interdental cleaning, and dental hygienists can remove hardened deposits (tartar) not removed by routine cleaning. Those with dentures and natural teeth may supplement their cleaning with a denture cleaner.

Careful and frequent brushing with a toothbrush helps to prevent build-up of plaque bacteria on the teeth. Electric toothbrushes were developed, and initially recommended for people with strength or dexterity problems in their hands, but they have come into widespread general use. The effectiveness of electric toothbrushes at reducing plaque formation and gingivitis is superior to conventional manual toothbrushes.

Instructions
Source:

Ensuring effective brushing is important in getting rid of food and bacteria properly.

Step 1) Place a pea-sized amount of toothpaste on the brush and hold at a 45-degree angle.

Step 2) In small circular and back and forth motions, move the brush gently along teeth and gums.

Step 3) Brush all surfaces inside the mouth, including the tongue. Ensure that the back sides of the teeth (top and bottom rows) are being cleaned by brushing vertically in up and down motions.