1, scaling will not wash your teeth loose, if loose, it means you have a very serious periodontitis, which is something that has happened before you scaling. 2, if you have rhinitis, it is best to get it under control before you come to the dental cleaning, use something like nasal drops, because there will be a lot of water in the mouth when you clean your teeth, it is best to breathe through the nose. If you still breathe through your mouth, it is easy to choke. 3, prevention is always better than cure, don’t wait until your gums are bleeding badly, or gum recession, loose teeth, then it may already be too late to clean your teeth. 4, scaling can wash away your teeth above the tartar and pigment, if your teeth base is originally yellow, want it to become white, you have to go to do teeth whitening. 5, want to be pregnant friends, before pregnancy, it is best to scaling, check your gum health, because in the basis of gum inflammation, hormone elevation will make the original inflammation more obvious, the manifestation may be gum hyperplasia is very terrible. Patients who have had root canal treatment: 1. Please do not think that if the tooth does not hurt anymore, you are fine and do not come back for a follow-up visit, as it is possible that the tooth will still have a painful episode at some point without thorough treatment. 2, If you have already completed the root canal treatment, although the cost will be higher, but it is better to do a brace, because without braces the tooth will be easy to crack, which will make your previous expenses are wasted. 3, root canal treatment requires the patient to open the mouth for a long time, long-term pain in the mouth or in front of the ear will be pain, it is best to pay attention to the protection of the joints in general, do physical therapy such as hot compresses. Patients who have their teeth extracted: 1. Please make sure you have eaten enough to have your teeth extracted, and women should avoid menstruation. 2. If you have any other health problems or allergies to any medications, please explain to the doctor in time. 3. In many cases, a hammer will be used for tooth extraction, so please be prepared that it does not hurt after the anesthetic.