Digital dentistry is a rapidly evolving field focusing on computerizing and automatizing diagnostic and treatment planning tools. It comprises systems and machines, like oral and facial scanning devices, CBCT, CAD/CAM machines, and 3D printers, that use various techniques and software that help convert, measure, and materialize the captured data. It has become immersed in a daily orthodontic routine worldwide as it addresses multiple challenges. Dentistry has witnessed notable improvements due to their implementation. For instance, dental model analysis, cephalometric measurements, photography, and individualized treatment planning have all experienced significant advancements in digital dentistry. The field of orthodontic techniques in dentistry is vast, covering various areas within the emerging digital dentistry paradigm. This thesis is a narrative review aiming to present the components and steps of digital orthodontic treatment and report on the available data regarding the use and application of digital technology in orthodontics. In doing so, relevant information will be gathered from existing literature to emphasize current clinical trends, research advances, and future applications of digital technology in orthodontics. Moreover, the thesis clarifies its constraints and potential future developments. Therefore, it is necessary to briefly discuss the technical aspects of scanner and 3D printing machinery and their use. Thus, this thesis offers a concise overview of dentistry's relevant digital systems and tools and their implications for various field areas.