The main reason why teeth are prone to tartar is that periodontal hygiene is not well maintained. If patients can brush their teeth at least 3 times a day for 3 minutes each time in a proper way, tartar will generally grow very slowly. Tartar is a tartar-like substance formed by mixing bacteria, food debris and saliva in the mouth and deposited layer by layer, which will adhere very firmly to the tooth surface, especially in the gingival sulcus. The best way to remove calculus is to go to a professional dentist and have scaling treatment for calculus. Scaling is the process of shattering and flushing out the calculus through ultrasound combined with sterile water, which is also the best treatment plan for calculus.