Tartar needs to be cleaned. Failure to clean it can have more adverse consequences. 1.Calculus is a calcified plaque formed by mineral salts in saliva or gingival sulcus fluid, deposited in plaque and tartar. These plaque and tartar are good environments for bacterial growth, so calculus needs to be cleaned. Patients can remove the environment for bacterial growth by cleaning the calculus. 2. If the dental calculus is not cleaned in time, it will cause the bacteria in the calculus to gather locally in the teeth, which will cause damage to the tissues around the teeth, and may cause periodontitis, bleeding gums, gum recession, and bad taste in the mouth. If patients find that they have dental calculus, they should go to the regular hospital in time and get treatment as soon as possible. In life, we should pay attention to clean teeth, use the correct way to brush teeth, rinse after meals, and use dental floss to clean the residue of teeth. Adults can use fluoride toothpaste to brush their teeth, and go to clean their teeth regularly to prevent tartar.