The invisible orthodontic technique has gradually emerged in recent years and has been recognized by the majority of aesthetic lovers. But the majority of patients may not understand its indications, advantages and disadvantages, the following I will give you a brief introduction to these aspects. Advantages: 1, invisible: due to its transparent characteristics, it is difficult to identify when wearing, thus you can enjoy smiling even during orthodontic treatment. 2, comfort: compared to traditional fixed aligners (commonly known as braces with wires), invisible orthodontics is more comfortable and can be removed when eating, so there are no significant restrictions on the type of food eaten. 3. Hygiene: Since the aligners can be removed, it facilitates the maintenance of oral hygiene and reduces the risk of dental caries and gingivitis. 4. Reduced follow-up time: the interval between each visit is extended to 6 weeks, and less chair-side operation time is used for each follow-up visit. Disadvantages: 1. Suitable for cases with relatively low orthodontic difficulty. 2. All dental diseases must be treated before or after orthodontic treatment. 3. The orthodontic treatment plan is determined from the beginning and generally cannot be changed midway. 4, The orthodontic effect depends on the patient’s wearing condition. Said the advantages and disadvantages of invisible orthodontics, we must be interested in knowing its indications, the following is a brief description of the indications for invisible orthodontics: 1, a small number of teeth in the scattered gap, mild to moderate crowding (uneven). 2, individual teeth rebound, extraction of a single lower jaw incisors. 3, severe crowding, the need to move a small number of teeth after the extraction of cases. The above is only a brief introduction to the indications for invisible orthodontic treatment, the specific circumstances need to be combined with clinical examination and analysis before deciding, it is recommended that the majority of patients to the regular specialist hospital to determine after consultation.