Fit accuracy of 3D printed Co-Cr multiunit implant-supported fixed dental prostheses: A systematic review of in vitro studies

Most studies investigated 3-unit ISFDPs supported by 2 implants and reported clinically acceptable marginal fit across fabrication methods. For 12-unit ISFDPs, 3D printed frameworks showed less accurate fit than milled ones but better than cast frameworks. Digital pattern fabrication contributed to improved fit of cast complete arch prostheses.