It is not recommended to drink alcohol for dental fillings, and drinking alcohol for dental fillings can lead to toothache, gum congestion, oral infections and so on. 1. Toothache: dental fillings are invasive procedures, and the size of fillings varies from patient to patient. Drinking alcohol after filling a tooth can lead to traumatic stress and severe pain. 2. Oral infection: fillings will be preventive use of anti-infective drugs, and these drugs can not be taken with alcohol, will reduce the efficacy of the drug and the body’s resistance, and then oral infection, and even some drugs are contraindicated drinking alcohol, which can lead to serious side effects, such as metronidazole will produce a disulfiram reaction with alcohol. 3. Gum congestion and swelling: alcohol can cause swelling and even inflammation of the gums. It is not recommended to drink alcohol after filling teeth, if there is an adverse reaction should be timely consultation.