Dental desensitization refers to the medical treatment to reduce tooth sensitivity and alleviate the undesirable symptoms. 1. When the teeth jaw surface wear is more serious, it is easy to lead to dentin exposure, and then when eating too hot or too cold food, tooth sensitivity problems occur. Dental desensitization is the use of medication to make the teeth form a protective film, try to avoid hot and cold temperatures on the dentin tubules to stimulate. Common medications include fluoride and silver compounds. 2. In daily life, if you eat hard food for a long time, the occlusal surface of the teeth is prone to physiological wear. Secondly, tooth decay, wedge-shaped defects, etc. may also lead to tooth sensitivity. Therefore, in daily life, you need to do a good job of dental care, for hard food to eat in moderation, regular cleaning of the teeth. Tooth sensitivity may cause weakness in chewing and tooth pain, so at the onset, you should seek medical attention as soon as possible so as not to affect the quality of life.