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The toothbrush is an oral hygiene instrument used to clean the teeth, gums, and tongue.

In January 2003, the toothbrush was selected as the number one invention Americans could not live without according to the Lemelson-MIT Invention Index.A Sulcabrush is a type of toothbrush used specifically for cleaning along the gumline adjacent to the teeth.The bristles are usually shaped in a pointed arrow pattern to allow closer adaptation to the gums.The small round brush head comprises seven tufts of tightly packed soft nylon bristles, trimmed so the bristles in the center can reach deeper into small spaces.The brush handle is ergonomically designed for a firm grip, giving the control and precision necessary to clean where most other cleaning aids cannot reach.Toothbrushes are available with different bristle textures, sizes, and forms.

Most dentists recommend using a soft toothbrush since hard bristled toothbrushes can damage tooth enamel and irritate the gums.

The color of the brushes differs between producers.

The same is the case with respect to the wire diameter.

This has been verified by excavations in which chew sticks, tree twigs, bird feathers, animal bones and porcupine quills were recovered.

The predecessor of the toothbrush is the chew stick.

Any electric toothbrush is technically a power toothbrush.