Answer: Wearing braces is an auxiliary appliance that must be worn during orthodontic treatment. Wearing braces can better ensure that the orthodontic effect reaches the ideal state. In the past, the only braces available for correcting teeth were metal braces. Their advantages were low friction, easy movement of teeth, and low price. However, their disadvantage was that the metal color was unsightly and unsightly. In addition to metal brackets, there are also translucent plastic braces and clear ceramic braces. The brackets used in the current bracket-less invisible correction are almost transparent (semi-invisible) and stick to the teeth with better concealment, allowing the correction process to be completed quietly. Its transparent brackets are tailor-made with the latest 3D computer technology. While ensuring good correction effects, they also have beautiful visual effects and good transparency. Transparent brackets have good resistance to contamination and discoloration. As long as the customer pays attention to oral hygiene, the brackets can remain transparent. Because alumina ceramics have extremely high hardness, which is 9 times that of stainless steel, it will not deform and has good dimensional stability. The ceramic bracket base and adhesive are chemically bonded, bearing force evenly and not easily falling off, significantly reducing the number of follow-up visits.