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ePaper created 2015-09-29, 13:02:58 | version 1.38.0
I case report _ computer-aided implant dentistry and tooth shape, the definitive tooth set-up was checked in an aesthetic try-in to create an optimal basis for designing the final framework (Fig. 29). To improve the aesthetics, the ATLANTIS ISUS angulated screw access was used when designing the definitive restoration. As described above, this featureallowsaccesstotheimplantscrewevenwhen thescrewaccessisangulated.Inthepresentcase,this meant optimisation of the space in the tooth set-up angle. Figure 30 shows the straight screw channel, whichwaspreviouslyintheincisalmarginofthefront tooth.Thearchcouldbemadesmallerintheposterior region as the screw channels there could be dis- placed into the centre of the masticatory surfaces. Asaresult,thedefinitiverestorationachievedbetter results in terms of aesthetics and function than that of the temporary restoration, although the implant positions remained the same. Figures 31 to 34 illus- trate the computer-aided design with 3-D software at DENTSPLY Implants’ production facility. The definitive titanium framework was modelled in the software and then milled (Figs. 35–39). The framework was then veneered with composite and completed (Fig. 40). Fig. 40a–e_Finished bridge prior to fitting. Fig. 41_Fitted bridge, right. Fig. 42_Fitted bridge, left. 24 I cone beam3_2015 Fig. 40a Fig. 40b Fig. 40d Fig. 40c Fig. 40e Fig. 41 Fig. 42