The decision to demineralize a tooth should be made on a case-by-case basis; if the demineralization alone is not chipped, a filling is usually not needed. If the tooth is chipped due to demineralization, a filling is needed. Tooth demineralization is primarily the appearance of chalky plaque on teeth in acidic conditions. This may be due to regular consumption of acidic substances, or it may cause decay to occur leading to demineralization. If the tooth is only chalky and not actually missing, it is usually treated with remineralization or fluoride. If the tooth is chipped and rough due to demineralization, resin fillings or veneers are required. The treatment of tooth demineralization should be based on the specific cause of the disease. Generally, minor demineralization does not require fillings, but only remineralization treatment or fluoride application, while general chipping and roughness of the tooth surface should be treated in a timely manner.