Three-dimensional digital technology is gradually being developed in orthodontics. Analysis of teeth, airway, mandibular movement, and other aspects through digital modeling assists in clinical diagnosis and treatment. The acquisition mode of dental casts is changed from the traditional plaster to digital. Data acquisition is achieved through different methods. Reconstruction models have been developed for analysis and diagnosis in orthodontic treatment, digital tooth arrangement, design of personalized brackets, and invisible appliances. Gradual development in orthodontics has led to the emergence of digital analysis, diagnosis, and treatment. Reconstruction models facilitate effective patient treatment. This review summarizes the applications of digital technology in orthodontics.
