Page 22 - Dental Technology June 2022

20-23-Antonello article-Q8_6-7-8-Ivoclar.qxd 7/13/2022 9:16 PM Page 3

22 cosmetic section DENTAL TECHNOLOGY, APRIL-JUNE 2022

FIG 13: Characterization of the mamelons was performed at depth using MAMELON honey-melon. FIG 14: The final morphology was created using a balanced mixture of ENAMEL medium and
ENAMEL clear.

FIG 15: The fireproof dies with the ceramic layer of VITA LUMEX AC on the firing tray. FIG 16: The restorations directly after firing on the model.

FIG 17: The natural play of light in the incisal area (lateral view). FIG 18: Gold powder was used to make the texture and surface morphology visible.

FIG 19: The palatal surfaces were also verified using gold powder. FIG 20: Perfect fit of the four veneers (palatal view).

colors of tooth enamel. The opalescent and this enamel layer, reproducing the basic tooth due to the alignment of the ceramic.
blue shimmering effect material OPAL shade from deep within the tooth. Ideal dis- Particular attention was paid to the final tem-
TRANSLUCENT opal-azure was used on the tribution of the particle size of the veneering perature of the initial firing, which was
edges. The mamelon was reproduced again ceramic meant micro-serration of the ceram- increased by approx. 10° compared to the
using MAMELON honey-melon to achieve ic particles, which in turn facilitated stability manufacturer’s instructions, because the fire-
the continuous, three-dimensional depth during layering, and detailed and efficient proof dies made from investment material
effect of mamelon anatomy. layering. absorb some of the heat.
Finally, the entire layering was coated with For an optimum firing result, it was very The result was a dimensionally stable
a 1:1 mixture of ENAMEL medium and important to position the fireproof dies cor- shape after the firing. The opalescent con-
ENAMEL clear to give the restoration its final rectly at a 45° angle on the firing tray. By trasts of the mamelons were also correctly
shape and vibrancy and create the chameleon positioning the veneers in this way, layering positioned in the incisal area, in the same
effect of natural enamel. After firing, the of the incisal edge remains stable during fir- way as previously layered. Fine-grained dia-
underlying dentin layer shimmers through ing, as gravity counteracts the heat source mond tools were then used to customize the