Dental sensory hypersensitivity is clinically necessary to treat, otherwise the patient feels uncomfortable which can affect the quality of life. The effective treatment is mainly to close the dentin tubules and reduce or avoid the flow of dentin-like fluids, using ways such as coating drugs, such as fluoride, strontium chloride, ammonium fluoride, silver iodide, resin-based desensitizers for desensitization. The thermal effect of the laser can also be used to act on the dentin tubules to thermally coagulate and seal the exposed tubules in an instant to achieve desensitization and healing. When repeated drug desensitization is not effective, filling or artificial crown restoration can be considered. Of course, in cases of severe wear close to the pulp, endodontic treatment can be performed if necessary. Dentin hypersensitivity is usually treated conservatively and medication will be applied repeatedly. A fluoride will be applied in the hospital and then the patient will be allowed to purchase their own anti-allergy toothpaste to apply, if the patient’s symptoms can be reduced after a period of time. When the symptoms are not relieved, a combination of laser and medication can be used. If laser treatment does not relieve the symptoms, there is also the option of filling, such as wedge-shaped defects, where a piece of enamel is stripped or the enamel is worn away by the toothbrush, which is close to the pulp cavity, and the pulp is irritated and will have very sensitive symptoms, which need to be relieved by filling. If the sulcus is deep enough to irritate the nerve, the nerve may be inactivated and endodontic treatment may be performed.