A few common ones are as follows:

1. Ordinary wire brackets - the most practical dental braces. Features: Cheap price, stable performance, lack of aesthetics, and oral hygiene care during orthodontic period is difficult.

2. Transparent ceramic brackets—have a certain degree of aesthetics. Features: High aesthetics, moderate price, easy oral hygiene care during orthodontic period. However, transparent ceramic brackets are different from invisible aligners. Invisible aligners are more beautiful and more expensive.

3. Lingual braces - a type of invisible braces. Features: Fully invisible braces, highly aesthetically pleasing, difficult to operate technically, difficult to cooperate during orthodontic treatment, most difficult to clean during oral hygiene, and relatively expensive.

4. Invisible and transparent bracketless braces - invisible teeth correction with high aesthetics. Features: Fully invisible braces, highly aesthetic and easy to wear. Oral hygiene is very easy to clean during orthodontic treatment, but the price is relatively high and the scope of application is narrow.

5. Self-locking braces - more flexible and easy to wear. Features: It is easy to wear, easy to cooperate during orthodontic treatment, easy to clean the oral cavity, and can relatively shorten the treatment time, but the aesthetics are poor and the price is relatively high.