At birth people usually have 20 primary (baby) teeth, which often erupt through the gums as early as six months of age.

These teeth are then shed at various times throughout childhood. By age 21, all 32 of the permanent teeth have usually erupted.

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Getting to know your teeth is fun! Learn all about your teeth with our fun, interactive, and educational diagrams:

Anatomy of a Tooth
Know Your Teeth
Brushing Instructions
Flossing Instructions
Sonicare's technology is designed to deliver superior results. Sonicare toothbrushes, inspired by the sonic technology used in dental offices, have dynamic cleaning action to reduce plaque along the gumline. Waterpik® dental water jets are clinically proven to be up to 93% more effective than dental floss at improving gum health.