Int J Stomatol ›› 2022, Vol. 49 ›› Issue (4): 373-379.doi: 10.7518/gjkq.2022082

• Expert Forum •     Next Articles

Difficulty assessment of invisible orthodontic treatment based on treatment plan and tooth movement pattern

Zhao Zhihe.()   

  1. State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2022-04-10 Revised:2022-05-03 Online:2022-07-01 Published:2022-06-28
  • Contact: Zhihe. Zhao


The establishment of principles for assessing the difficulty in bracketless invisible orthodontic treatment for malocclusion based on the treatment plan and tooth movement patterns has practical significance and social value for improving the level of invisible orthodontic treatment in China and for promoting the rational distribution of medical resources. Malocclusion is one of three major oral diseases. China has a large demand for orthodontic medical resources, which used to be dominated by traditional fixed orthodontic technology. However, with the economic and social development of China and the advancement of invisible orthodontic technology, the demand for invisible orthodontic treatment is increasing. A reasonable assessment of the difficulty of implementing invisible orthodontic treatment plans to assist in clinical treatment plan decisions and to implement orthodontic tiered medical services has become a clinical problem that must be urgently solved. The author summarizes the research progress and individual clinical experience about the difficulty in assessment of invisible treatment. On the basis of the material mechanics of clear aligners and the principle of clinician-led treatment planning, the present paper discusses the key factors of assessment difficulty from the sagittal, vertical, and horizontal directions in extracted cases and non-extracted cases, as well as other factors that affect the difficulty of invisible orthodontic treatment. The author hopes that this paper can guide the clinical diagnosis and treatment of invisible orthodontics in China, promote the establishment of scientific and standardized tiered treatment, attract more clinicians and researchers to participate in the innovation of invisible orthodontic technology, and promote both academic and clinical levels of invisible orthodontics in China.

Key words: invisible orthodontics, malocclusion, therapy, difficulty assessment

CLC Number: 

  • R 783.5

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