I also had invisible braces done in Ruili. It cost more than 23,000 to do the upper and lower teeth together! The deformity of my lower teeth is not serious. I have worn more than 20 sets now, and they are about to be straightened. The doctor said that my lower teeth can be straightened after more than 30 sets. The deformity of my upper teeth is more serious, and I will need to wear more than 50 sets of braces. It is changed every 15 days! I think it's okay. At least it's convenient when eating and brushing my teeth. Just take it off. I heard from the doctor that the price may depend on the condition of the teeth. Some will cost more and some will cost less. But it's definitely more than 20,000. , these are my conditions and feelings, I hope they are helpful to you