Introduction: Impression making and fabrication of plaster models serve as a basis for documentation. diagnosis and treatment planning. Model analysis is used routinely in orthodontics and is a key factor for treatment planning and review of orthodontic progress. Recently newer technologies in imaging and digitalisation have made it possible to obtain 3-Dimensional (3D) virtual models. https://www.roneverhart.com/DeRoyal-LMB-Spring-Finger-Extension-Assist/