Dental calculus cannot be treated at home, and can only be removed by going to a hospital and having your teeth cleaned by a medical professional.
Calculus is a substance that cannot be brushed away due to poor oral hygiene, plaque, inorganic salts, food debris, etc. that adheres to the surface of the teeth for a long period of time, which adheres closely to the teeth and cannot be removed by itself.
Hasty removal at home may damage the dental tissues and periodontal soft tissues. Clinically, ultrasonic cleaning is generally used to vibrate the tartar off the surface of the teeth, while also cleaning the tartar in the gingival sulcus to maintain the health of the gums.
The removal of calculus should be done in a hospital by a professional, do not do it at home to avoid damage to oral health.