Keep your mouth clean: Needless to say, many dental problems are caused by not paying much attention to oral hygiene, so you need to pay attention to this. Therefore, subjects should develop the habit of gargling or brushing their teeth after meals. In addition, removable dentures should be placed in clear water before going to bed. 2. There are regulations on diet: hard foods such as nuts and bones should be avoided after operation, and too many sweets should not be eaten to prevent tooth decay.