Seek in-person evaluation and scheduled follow-ups from a licensed orthodontist; do not purchase clear aligners online for self-treatment at home

Clear aligners are regulated medical devices that require clinical supervision. Regulatory authorities stipulate that aligners must be administered under the direct guidance of a licensed orthodontic specialist with routine in-person follow-ups. The US FDA explicitly states that it has not approved any direct-to-consumer clear aligners sold without a doctor's prescription and in-person supervision. Undergoing orthodontic movement without professional clinical examination risks severe bite collapse, pathological tooth displacement, intractable chronic pain, irreversible root resorption, and permanent tooth loss.

Seeking professional care costs more in consultation and regular follow-up appointment fees than purchasing mail-order DIY aligners online, requiring clinic visits every several weeks. The willpower challenge is maintaining routine clinical follow-ups throughout treatment courses that typically span 1 to 2 years.

According to the National Medical Products Administration (NMPA) Center for Medical Device Evaluation Guideline for Registration and Review of Bracketless Clear Aligners, clear aligners are classified as Class II medical devices. Regulatory standards mandate that product user instructions must explicitly state that clear aligners may be worn only under the direct clinical oversight of a certified dental orthodontic professional, and must specify strict protocols for oral hygiene, mastication, and mandatory periodic in-person follow-up visits. Furthermore, official marketing guidance explicitly discourages misleading commercial nomenclature such as "invisible aligners." Concurrently, the US Food and Drug Administration (FDA) clinical safety guidance (updated 2026) unequivocally cautions: "The FDA has not authorized clear aligners that are sold directly to consumers without a prescription and supervision by a dentist or orthodontist." The FDA emphasizes that in-person examination by a qualified dentist or orthodontist is critical to evaluate bone support and root anatomy, lowering severe risks of abnormal or traumatic bite relations, uncontrolled tooth movement, temporomandibular joint dysfunction, severe pain, and permanent tooth loss. Periodic in-person clinical monitoring throughout treatment is essential to confirm whether teeth and periodontal structures are tracking safely according to biomechanical treatment plans.

Benefit magnitude is categorized as Low because regulatory safety advisories do not report population-level incidence rates of adverse outcomes, but the severity of potential dental and alveolar bone harm is substantial. Orthodontic treatment is a complex biological medical intervention. Cosmetic teeth alignment must be performed only at healthcare facilities possessing verified stomatological clinical licenses, and by orthodontists holding valid physician qualification certificates (see Chapter 28, Rule 2 on verifying clinic licenses and attending physician qualifications). Regulatory directives mandate strict enforcement against unlicensed dental practices and unqualified personnel administering orthodontic treatments. Basic public health insurance plans exclude adult orthodontic care (see Chapter 24, Rule 12). Benefit magnitude reflects clinical safety assurance; primary beneficiary is yourself.

国家药品监督管理局医疗器械技术审评中心 (2022). 无托槽矫治器注册审查指导原则（2022 年第 41 号）. https://www.cmde.org.cn/flfg/zdyz/zdyzwbk/20230103095116100.html；国家卫生健康委办公厅等 (2023). 关于进一步推进口腔医疗服务和保障管理工作的通知（国卫办医政发〔2023〕11 号，第五部分第（二）项）. https://www.gov.cn/zhengce/zhengceku/202309/content_6903786.htm；U.S. Food and Drug Administration (2026). Clear Dental Aligners（页面 2026 年 9 月 9 日更新）. https://www.fda.gov/medical-devices/dental-devices/clear-dental-aligners