Plaque that isn’t removed from the teeth hardens, becoming tartar, which cannot be removed by brushing alone.
A dental cleaning is a professional cleaning you receive from a dentist or dental hygienist. Most dental cleanings take only between 25 and 30 minutes. Cleanings should be performed every six months to prevent excessive plaque buildup. Plaque left untreated can lead to unhealthy gums and tooth decay. A routine dental cleaning should include scaling, root planning and polishing.