The purpose of this study is to evaluate the effect of Deep learning and Cloud based solution for designing dental crown on the accuracy of dental prosthesis. Prostheses are designed by dental professional software(Exocad DentalCAD 3.0 Galway; Exocad, Darmstadt, Germany) and AI-based automated software(Dentbird; Imagoworks, Seoul, Korea). Afterwards, the designs are converted to resin prostheses using 3D printing. The fit accuracy of crowns are measured at the delivery of prostheses in clinic.