SimEx was the augmented –reality dental simulator chosen to start with what seems to be a future annual tradition in the world of dental learning and training: The First Shanghai Dental Resident-Skill Competition of 2020 that took place by the end of last November. The event, hosted by the Shanghai Post-Graduation Medical Education Committee, undertaken by the Ninth People's Hospital Affiliated to the School of Medicine of the Shanghai Jiao Tong University, was co-organized b