1 Brushing and flossing is the best way to prevent tartar buildup. 2  Use the proper technique – ask your dentist. 3  A brush with soft bristles can be used. 4  Brush at least for 2 minutes and make sure you reach behind the teeth and up to the last molars.alcium deposits can form on bones and teeth and is called calcification. Plaque or hardened calcium deposits can form on all soft tissues in the body like the gum tissues. Food particles and organic secretions form deposits on our teeth and this can be caused by salts such as calcium carbonate.