Related Experiment Video
Updated: May 27, 2026
Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
Published on: December 20, 2024
Evaluation of fit of cement-retained implant-supported 3-unit structures fabricated with direct metal laser sintering
Raquel Castillo Oyagüe1, Andrés Sánchez-Turrión, José Francisco López-Lozano
1Department of Buccofacial Prostheses, Faculty of Odontology, Complutense University of Madrid (UCM), Madrid, Spain. raquel.castillo@odon.ucm.es
Abstract:
This study evaluated the vertical discrepancy of implant-fixed 3-unit structures. Frameworks were constructed with laser-sintered Co-Cr, and vacuum-cast Co-Cr, Ni-Cr-Ti, and Pd-Au. Samples of each alloy group were randomly luted in standard fashion using resin-modified glass-ionomer, self-adhesive, and acrylic/urethane-based cements (n = 12 each). Discrepancies were SEM analyzed. Three-way ANOVA and Student-Newman-Keuls tests were run (P < 0.05). Laser-sintered structures achieved the best fit per cement tested. Within each alloy group, resin-modified glass-ionomer and acrylic/urethane-based cements produced comparably lower discrepancies than the self-adhesive agent. The abutment position did not yield significant differences. All misfit values could be considered clinically acceptable.
