During the day, and especially after eating food, microbes adhere to the teeth and form a coating called microbial plaque. Microbial plaque can be removed by using a toothbrush and toothpaste, as long as the correct brushing method is used.
However, if the microbial plaque is not completely removed, then the saliva is superimposed on it to form the tartar or stone. The tartar cannot be removed with a toothbrush, which is why a visit to the dentist is necessary to have it removed or cleaned. Otherwise, if it remains in the tooth, it will retain more and more germs, causing gum inflammation or tooth decay.
The cleaning is done either with hand tools or with the ultrasonic system, which is a special machine that vibrates a very thin scraper and by spraying water the tartar is removed from the teeth.
Then, a special polishing paste is used to polish the surface of the tooth, especially the one on which the scraper was used.