Please activate JavaScript!
Please install Adobe Flash Player, click here for download

CAD/CAM - international magazine of digital dentistry

case report _ upper jaw rehabilitation I oftitanium,usingafive-axisCNCmillingmachine(Fig. 10).5 Titanium—four times lighter than semi-precious alloys—is the lightest metal used in dentistry. It offers excellent biocompatibility and very good mechanical properties.6 The metal is highly reactive to oxygen: whenthemetalisexposedtoair,aprotectivefilm,the passivationlayer,buildsuponitssurfaceandmakesit extremelyresistanttocorrosionandchemicalattacks. Titanium offers additional advantages in oral im- plantology.Thedensityofthematerialsusediscrucial. The weight of a prosthesis for an upper jaw appears to be a key factor for treatment success. A few days later, the bar was tried in the patient’s mouth.Itwasperfectlyadjustedandseatedpassively (Figs. 11a–d). Milled bars exhibit a precision fit better than 10µ. The substructure was sent back to the lab- oratory technician, who then produced the frame- work using thesiliconeindicesof theapproved func- tional and aesthetic set-up. Figs. 9a & b_3-D CAD model. Fig. 10_Milling. Figs. 11a & b_Simeda milled titanium bar. Fig. 11c_The titanium bar in situ. Fig. 11d_Panoramic radiography for fit control of the bar. I 29CAD/CAM 2_2015 Fig. 9a Fig. 9b Fig. 11a Fig. 11b Fig. 11c Fig. 11d Fig. 10

Pages Overview