Evaluation of different impression techniques for indirect e-max fixed dental prostheses. Randomized clinical trial

Nowadays, it is a new era in prosthetic dentistry, due to the use of digital impressions and new digital computer-aided methods for designing and manufacturing computer-aided design/computer-aided manufacturing (CAD/CAM). Now, we are trying to change all the old traditional methods to have better results. Some studies found that there is no significance between the overall survivals of the tooth supported and implant CAD CAM fabricated prostheses. In addition, there is no difference in accuracy. Making single crowns or short span bridges can be done efficiently with digital impressions. In addition, it was found that digital impressions could be more reproducible. This randomized clinical study evaluated three impression techniques. Ten participants demanding three units all-ceramic bridges were involved in the study. The inclusion criteria were from 18 to 60 years group age; the patient should have plaque score and bleeding score