Establishing and maintaining optimal oral hygiene is an essential condition of neat appearance and healthy life. Despite of the proper teeth brushing techniques and the use of dental floss the dental enamel gets often discoloured and calculus may form at places that are difficult to access. Calculus is a discoloured calcified deposit on the surface of the teeth, which can no longer be removed with a tooth brush within the frames of domestic oral hygiene. Its colour can range from yellowish white to black, and it can appear under the gum or above it which is visible also for the patients. Plaque is not only an aesthetic problem but it may also cause illnesses of the gum. Not removed plaque accumulated in the course of years may lead to the decay of the tooth’s frame and slowly to the losing of the tooth. In case of preventing and treating gum inflammations the regular, accurate plaque removal from under and above the gum is of utmost importance. In the course of the treatment the plaque is efficiently removed by using a modern ultrasonic depurator without injuring the dental enamel. |