The best way to control cavities is to seek medical treatment as soon as possible, dentists use high-speed turbine drills to remove infected hard tissues of the tooth, and then fill the cavity with filling materials, after caries treatment, the cavity will not continue to expand, and at the same time, the defects in the dentin are also repaired by filling materials. Dental enamel and dentin are not capable of healing on their own once caries occurs, and the damage of caries can only get bigger and bigger, and when the infection spreads to the pulp, it will cause pulpitis, which will cause more severe pain and serious tissue destruction, and the clinical treatment for pulpitis is root canal therapy. Therefore, if you find tooth decay, don’t delay to go to the hospital for treatment, prevent tooth decay by brushing and rinsing daily, eat less sweets and drinks, children should go to the hospital regularly for dental fluoride and newborn permanent teeth should be done to close the fossa.