◇ Metal preformed crowns are internationally recognized as the best way to restore molar teeth; ◇ If there is local anesthesia, the anesthetic effect will remain for two hours after local anesthesia, so be careful not to bite your lips! ◇Temporary pain may occur on the day after surgery, if necessary, take painkillers according to the dose; biting discomfort can generally be relieved within a week, contact the doctor if necessary; ◇The teeth can be used normally only after 2 hours of treatment, do not bite hard objects within 24 hours; ◇For teeth with deep caries, if there is pain and other symptoms after crown restoration, endodontic treatment should be changed; Zhang Zengfang, Department of Pediatric Dentistry, Studio Regular review every six months; this article is published by Zhang Zengfang This article is authorized by Dr. Zhang Zengfang, please do not reproduce without authorization