【 Etiology 】: Tooth allergy is more common in essential exposure, which causes irritating pain. Serious people dare not bite and gargle, and they have difficulty eating. However, after the stimulation was removed, the symptoms disappeared immediately and there was no spontaneous pain. Most of them are related to local and systemic factors.
【 Clinical manifestations 】: The pain caused by cold, hot, sour, sweet and mechanical stimulation of the affected teeth disappears after the stimulation is relieved. You can use a probe to find out the allergic point during the examination.
[Treatment]: (1) Remove the cause and perform local treatment such as filling.
(2) Desensitization therapy: drug application: ammoniated silver nitrate or sodium fluoride glycerin can be applied locally.
Direct current ion introduction equipment.
Drug gargle: gargle with desensitizing mouthwash.
Laser irradiation: YAG laser with the power of 15W is used to locally irradiate the allergic parts, each time for 0.5- 1.0 seconds, and 3-5 times is a course of treatment.
Drug toothpaste: desensitizing drug toothpaste is also acceptable.
Chewing food: Let patients rub sensitive parts with fresh garlic, tea or walnuts, or chew repeatedly.
(3) Restoration treatment: If desensitization to drugs and other methods is ineffective, filling can be considered, pulp treatment is feasible for those near pulp, and full crown restoration can be considered if necessary.