Calcium deficiency of teeth may be caused by congenital dysplasia or hereditary factors; it may also be caused by underdevelopment of enamel and dentin, which is basically the same method of calcium replenishment, and can be taken in the form of lifestyle modification and general treatment for calcium replenishment. There is no “fastest” way to replenish calcium. 1. Life management: usually you can eat more calcium-rich foods, such as milk, eggs, fish, beans, fresh vegetables and fruits, because these foods can effectively provide nutrients for the body’s functions, but also have the role of calcium. 2. General treatment: dental calcium deficiency should be accurately described as tooth demineralization, tooth surface is loose and porous, with white spots, easy to acidification and demineralization, daily use of fluoride toothpaste brushing, maintaining oral hygiene, removing plaque, preventing periodontal disease and caries, and regular oral examination, in order to maintain the health of the teeth. Calcium deficiency on the teeth suggests that patients seek timely medical attention and follow the doctor’s instructions for treatment, so as not to delay the condition.