Patients after maxillary amputation need to wear dental trays, how to use the new trays effectively, please pay attention to the following matters. : 1. Reasonable expectation: Dental tray is just a denture, you cannot expect too much, you should adapt and accept it slowly. 2.Daily treatment: Do not force to wear, so as not to damage the tray and oral tissues. Remember to take out the bracket when sleeping, let the tooth rest, put the cleaned bracket into water or cold water, do not put it in air or hot water for a long time in order to avoid bracket deformation. 3, slight discomfort: the new trays are generally quite bulky, in addition to the feeling of restricting the activities of the tongue, saliva secretion will increase accordingly; after getting used to it, the above feeling will disappear. The above feeling will disappear after getting used to it. If the flesh of the teeth is subjected to too much pressure from the brackets, it may cause soreness. In this case, you should immediately seek help from your doctor, but remember to put the brackets on a few hours before the consultation. 4. When eating: Eat soft and finely chopped food and try not to chew with the denture to maintain the balance of the trays. Avoid foods that are too hot, sticky or hard. 5. When talking: When you first wear a dental tray, the muscles of your tongue, forehead and lips are not adapted to it; therefore, some pronunciation may be inaccurate, or there may be loosening of the trays. It is necessary to strengthen the learning to control the trays to improve the pronunciation. 6. Dental hygiene: Rinse the mouth and clean the trays after eating. When cleaning, you can use the “beneficial teeth cleaner cleaning tablets” to soak for 15 minutes, and then rinse with water (or cold water), the brackets can be placed in water (or cold water) to soak overnight, the specific use of which should be consulted with a full-time doctor, and use a soft-bristled toothbrush to brush the brackets in the process of use. 7, adjust the dental tray: If there is any discomfort, do not adjust it by yourself. If there is any damage, do not repair or discard any part by yourself. You should seek help from your doctor in time to avoid further damage to your trays and damage to your oral tissues. 8. Regular checkups: It is important to have regular checkups so that your doctor can take proper care of your mouth and trays.