2019 • FEDERICO FERRARIS • DIRECT CALIPER
Federico Ferraris created a truly innovative restorative instrument that defines the thickness of the enamel margin in direct restorations on anterior teeth, on direct and indirect restorations in various clinical phases and for defining the dentinal curving. The shape of this instrument is composed of different components. The terminal part is a real restorative probe, with flat head and grooves at 0,5mm. The next area has an angle at 45° which, when leaned against the preparation chamfer, allows for one to determine the thickness of restoration dentinal material and also the residual buccal enamel. The difference between the two extremities of this instrument is that the FF7 determines a thickness of 0.5mm of enamel (universal thickness in the third medium of the crown), while the FF8 a thickness of 0.9mm (more indicated in incisal areas or where the thickness of the natural enamel to emulate is very important). The part closer to the handle has a curvature that reproduces the ideal evolution of dentin, in so allowing one to determine the thickness to the margin, as well as the dentinal shape in incisal direction. Dimensions of working part: probe length 3,5 mm; maximumwidth 4,5 mm.
Active part-code: TNFF7/8
36 HISTORY OF KEY OPINION LEADERS
Made with FlippingBook Annual report