This literature review aims to discuss augmented reality systems and provide an update on the most recent technological developments and applications in the dental field. The studies that met the inclusion criteria in the last 20 years, from 2000 to 5 May 2020, in the PubMed database were included. The search resulted in n=72 articles, in which n=40 included and n=32 excluded. AR systems are still being tested as there are still some limitations that limit the adoption of this technology in the dental sector. Several studies have resulted in a device appropriate for clinical use, yet no regular clinical application was recorded.