When knowledge multiplies -

– These are strange times, says Per Vult von Steyern. The Swedish professor in prosthetic dentistry is currently a guest researcher at NIOM. Fortunately, the Norwegian Covid19-restrictions do not restrict him. Quite the contrary. – It’s so quiet, it’s almost meditative, he says, half smiling. Usually, Per divides his time between his responsibilities at the […]

Digital evaluation of marginal and internal fit of single-crown fixed dental prostheses -

The adaptation of single-crown fixed dental prostheses (FDPs) is a subject of great interest in the research community. Many investigations have been published, and a variety of evaluation methods have been used to determine the fit accuracy of prosthetics.
Many of the methods required manual measurements of the gap between the restoration and the abutment. With the introduction of CAD/CAM techniques, digital tools started being used for evaluating the adaptation of FDPs.
In this study, a tabletop dental scanner was used. It is anticipated that in a clinical setting, an intraoral scanner is sufficient, at least for single-crown FDPs.

Internal fit of three-unit fixed dental prostheses produced by computeraided design/computer-aided manufacturing and the lost-wax metal casting technique assessed using the triple-scan protocol -

Suboptimal adaptation of fixed dental prostheses (FDPs) can lead to technical and biological complications. It is unclear if the computer-aided design/computer-aided manufacturing (CAD/CAM) technique improves adaptation of FDPs compared with FDPs made using the lost-wax and metal casting technique.