There are usually no tips for removing dental calculus, which cannot be removed on its own and needs to be removed by supragingival cleaning (scaling) and subgingival scaling. Tartar is caused by poor oral hygiene, food debris and some soft tartar that has been present for a long time, and during its decomposition mixes with the bacteria in the mouth to produce a biofilm called plaque. Plaque cannot be washed away by water or removed by rinsing. If the plaque that stays on the teeth is not removed in time, it will calcify over time and form calculus, some of which can cause inflammation. Calculus can be removed by supragingival scaling and subgingival scaling, which is often performed with an ultrasonic scaler that utilizes ultrasonic waves to break up the calculus. Subgingival scaling focuses on removing bacteria and calculus from periodontal pockets, which can control gum inflammation. It is also important to maintain good hygiene habits in daily life, eat a light diet, and brush your teeth in the correct way to avoid tooth damage. If patients suffer from calculus they should visit a specialized dental clinic and be guided by a doctor.