Dental implants (length 12 mm, diameter 4.1 mm, Straumann Bone Level, Freiburg, Germany) were restored with titanium alloy base (RC Variobase Abutment, diameter 4.5 mm, length 3.5 mm, Straumann, Germany) with lithium disilicate abutments (IPS e.max, Ivoclar Vivadent, Schaan, Liechtenstein). Twelve identical lithium disilicate abutments were modelled in wax (Dental Designer, 3Shape, Copenhagen), milled (Organical Multi, R + K CAD/CAM, Berlin), and transferred in lithium disilicate (IPS e.max, Ivoclar Vivadent). Abutment measures were equivalent to cores of group I. Abutments were luted on the alloy bases with self-adhesive luting composites (IPS e.max Abutment Solution Cem Kit, Ivoclar Vivadent). Abutments were screwed in with 35Ncm. Crowns were etched 20 s with fluoric acid (Vita Ceramics Etch, Vita, Bad Säckingen, Germany), cleaned with water and isopropanol, silanized (Monobond Plus, Ivoclar Vivadent, Schaan) for 60 s, and self-adhesively luted (SmartCem Dentsply DeTrey). Final light curing was performed for 20 s from each restoration side.
Dental designer
Manufactured by 3Shape
Dental Designer is a CAD/CAM software from 3Shape. It provides dental professionals with tools to design dental prosthetics and restorations digitally. The software enables users to create various types of dental devices, including crowns, bridges, veneers, and more.
Automatically generated - may contain errors
Lab products found in correlation
2 protocols using dental designer
1
Lithium Disilicate Abutment Restoration
2
Fabrication of Full-Arch Zirconia FDPs
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The in-vitro model-which simulated a maxilla with eight remaining abutment teeth and six missing teeth-was scanned using a laboratory scanner (D800, 3Shape; Copenhagen, Denmark). Fullarch FDPs were then designed (Dental Designer, 3Shape) without a circumferential cement gap, i.e., all gap parameters were set to zero. This represented a worst-case scenario of maximum transfer of misfit strain to the abutment teeth, with no intermediate stressbreaking layer. The designed full-arch restorations were milled (Cercon Brain Xpert, Dentsply Sirona; York, USA) from 10 blanks of the same batch of a highly translucent 3Y-TZP (cercon ht, color A2, batch code 18024290; Dentsply Sirona). During sintering (duration: 15 h, Cercon heat plus, Degudent; Hanau, Germany), a stabilizing framework remained attached to the restorations (Fig. 3a). After sintering, the inner surfaces of the frameworks were sand-blasted with alumina (50 µm, 1 bar) to clean them, and polished using a goat-hair brush and zirconia polishing paste (Fegupol, Feguramed; Buchen, Germany).
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