Invisible orthodontics is an emerging orthodontic technology that relies primarily on computer-aided diagnostic design for orthodontic treatment. The aligners are made of polymer materials without the brackets and wires found in traditional fixed aligners and can meet patients’ requirements for both straightening their teeth and not affecting their aesthetics. Compared to traditional aligners, invisible aligners are aesthetically pleasing, comfortable and convenient. Prior to invisible braces, facial and occlusal photographs are taken and oral models are taken. Diagnostic imaging includes curved tomograms, lateral cephalometric films, and CT. A computer then analyzes this information, makes a diagnosis and designs the aligner. The patient can see the exact changes in the orthodontic process and the orthodontic results based on the computer simulation. Generally dozens or even hundreds of aligners are made for orthodontic treatment, and patients only need to wear the aligners on time as required, often without too long a follow-up visit, usually once every two months or so. The invisible orthodontic treatment is very popular nowadays because of its aesthetic and comfortable appearance.