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Vocabulary

The mouth is full of bacteria
Bacteria and other particles form deposits in your teeth
Those deposits are called dental plaque
Regular tooth brushing remove dental plaque
Plaque forms twelve hours after brushing your teeth
Brushing twice a day controls the dental plaque
If dental plaque is not removed, it forms tartar
Dental tartar is hard deposits that form in the teeth
Dental tartar are cannot easily be removed
Only professional cleaning can remove the dental tartar