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CAD/CAM – international magazine of digital dentistry No. 3, 2017

implant bar overdenture industry report | Fig. 29 Fig. 30 Fig. 31 Fig. 32 Fig. 33 Fig. 34 As the excellent result was achieved, the prosthesis Fig. 29: Finished bar and prosthesis. was cured and polished. On the day of delivery, the dentist screwed and tightened the bar. He also checked that the insertion of the counter bar was suitable, as well as the occlu- sion and retention of the attachments. Once those tests had carefully been performed, the patient stated a good satisfaction and comfort with the prosthesis._ Fig. 30: Internal view of the prosthesis. Fig. 31: Side view of the bar. Fig. 32: The bar screwed into the patient’s mouth. Figs. 33 & 34: Final prosthesis in patient’s mouth. contact The impression was taken in the conventional way. Once the master model was produced, the wax rims were fabricated and the passivation of the bar was carried out. After the repositioning the analogues that were out of position on the master model, the teeth set- up and consequently the aesthetic test was performed. With the correct teeth relationship and aesthetics, the master model scanning was done, followed by the CAD drawing of the bar with screw holes for the threaded attachments. It was decided to put three threaded attachments with two OT Equator and one OT Cap micro. Once the bar delivered by the milling centre, it was refined with a two degree bur and polished. The sleeves of the threaded attachments were ce- mented and the bar scanned with the metal housing in order to correctly design the counter-bar. The counter-bar, in laser melting, was checked for spaces between the bar, counter-bar and the teeth set-up. The metal housings for the retentive caps were laser welded inside the counter-bar and waxed, and the teeth set-up for the last aesthetic try-in was carried out. Mdt. Zampieri Marino, Mdt. Marchiori Fabio, Mdt. Dartora Luca, Mdt. Coin Massimo, Mdt. Carraro Lucio & Dr Giudice Pietro Laboratory Venti 07 – Santa Maria di Sala (VE), Italy CAD/CAM 3 2017 41

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