? There are four commonly used orthodontic methods: ordinary steel wire bracket appliance, transparent invisible bracket-free dental appliance, transparent ceramic bracket appliance and lingual appliance. Orthodontics is to gradually restore the beauty and neatness of teeth through the stress of appliances. The following is the introduction of experts. 1, common steel wire bracket appliance, the bracket and the teeth are fixed together, and the steel wire arch is placed in the groove of the bracket to control the height and direction of the teeth. Generally speaking, the steel sleeve you are talking about is tied with ligature wire, and the self-locking bracket is just like a locking circlip. Put the wire bow in the groove and press it to lock it tightly, which saves a lot of things. 2. Transparent invisible bracketless orthodontics Transparent orthodontics is a brand-new 3D computer technology to complete the whole orthodontic treatment. Those teeth that are crowded, cracked, or displaced after traditional treatment can definitely regain a bright smile. 3. Transparent ceramic bracket appliances The transparent brackets currently used are all alumina ceramics, and the advantages of transparent ceramic bracket appliances make them have many advantages. Transparent ceramic bracket appliance is characterized by beautiful visual effect, good transparency, good anti-pollution and anti-discoloration ability. Due to the extremely high hardness of alumina ceramics, such appliances usually have high strength. 4. Lingual appliance Lingual appliance is to place the appliance on the inner side (lingual side) of the tooth. Compared with the traditional lateral (labial) appliance, it cleverly hides the appliance, which not only achieves the ultimate goal of orthodontic treatment, but also completely avoids the distress of exposing braces, but its cost is much higher than that of ordinary appliances. After reading the above introduction, I believe you have some understanding. Each orthodontic method has its own advantages. People who want to do orthodontics must choose their own orthodontics according to their own dental conditions.