cosmetic dentistry_ beauty & science

I 31 industry report _ CLEARFIL ESTHETIC CEMENT I cosmeticdentistry 4_2011 _CLEARFIL cement for etchable ceramic bridges Fig. 31_A patient with a fractured root on #21. Because of multiple ill-fitting and discoloured restorations in the neighbouring teeth #11 and 22, it was decided to place a three-unit bridge. Fig. 32_Shoulder preparations on the neigh- bouring teeth for the abutment crowns after heal- ing. CLEARFIL composite resin was used to fill the remaining defects on the tooth surfaces. Fig. 33_Themock-upforthethree-unitbridgein compositeresin.Simplecorrectionscanbemadetothe anatomy of the bridge with regard to shape aesthet- ics, occlusion and articulation before final approval by the patient and production of the restoration. Fig. 34_Scan model of the three-unit anatomic temporary bridge with the shape of the mock-up. The bridge was coated with silver powder prior to scanning. Fig. 35_CAD for the three-unit bridge before milling. Fig. 36_A block of etchable ceramic (IPS e.max CAD) was used for milling the anatomic bridge in the CEREC inLab. The milled CAD/CAM bridge was still in the soft phase before crystallisation. Fig. 37_The anatomic CAD/CAM bridge after crystallisation in the porcelain furnace, which im- parted it with strength and tooth colour. Fig. 38_TheCAD/CAMbridgeplacedinthemouth forthesecondimpression.Notethehealedanatomy of the gingival tissues around the bridge compo- nents. Fig. 39_The second impression with the CAD/ CAM bridge for the cut-back technique and porce- lain veneering of the restoration. Fig. 40_The three-unit IPS e.max CAD bridge just before placement. The aesthetics of the mono- chromaticCAD/CAMproductwereoptimisedbythe manual creative work of the dental technician. Fig. 41_The inner surfaces of the abutment crowns were etched with 5 % HF gel and treated with CLEARFIL CERAMIC PRIMER. After 60 seconds, Fig. 38Fig. 35 Fig. 36 Fig. 37 Fig. 42Fig. 39 Fig. 40 Fig. 41 Fig. 49Fig. 48 Fig. 50 Fig. 43 Fig. 47Fig. 46Fig. 45Fig. 44