About a week after removing the harm of formaldehyde can reduce the harm to the teeth, or with mouthwash anti-inflammatory, such as compound chlorhexidine gargle, etc., you can eliminate the harm of formaldehyde to the teeth more quickly. Formaldehyde is a colorless, irritating heavy chemical substances on human eyes, skin, nose, mouth have irritating effect, the harm to the teeth is mainly manifested in toothache, followed by bleeding gums, periodontitis and so on. After lifting the formaldehyde stimulation, the body functions will slowly repair the harm to the teeth. Formaldehyde is not only harmful to teeth, but also harmful to all systems of the body. So we should actively carry out the prevention and treatment of formaldehyde, with scientific methods to eliminate formaldehyde, such as ventilation method, physical adsorption method, negative ion purification method or air purifier. The appearance of physical symptoms, it is recommended to seek medical treatment in time to prevent delays in the condition. Drugs should be used under the guidance of a physician.