Page 25 - DT Vol 13 No 2

22-26-Show Yamamoto-Q8_6-7-8-Ivoclar.qxd 6/20/2023 1:12 PM Page 4

DENTAL TECHNOLOGY, APRIL-JUNE 2023
cosmetic section 25

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F FIG 31: In a second step, EE3 was added and EE4, EE5, EE8 and F FIG 32: The result of the second glaze layering after firing F FIG 33: After coarse finishing and polishing, the crown was
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EE9 to create a layer of enamel ready for the first in situ test

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F FIG 34: The result of the bisque bake looked very natural firing on the master model F FIG 35: The crown was inserted, and its shade was checked with Vita Linear guide 3D Master

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F FIG 36: A pickup impression was taken of this clinical stage F FIG 37: A master model was made to evaluate the accuracy and shade

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F FIG 38: After minimal cut back, the dental core and enamel were optimized F FIG 39: In order to finalize the morphology, the bands of the two incisors were determined
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and marked
FINALIZATION AND FINAL RESULT (dark purple) and Window with EE7 (translucent orange) (Figure
The final visual shade check was performed with Vita Linearguide 38) To be able to mimic the morphology of the adjacent incisor, the
3D Master after replacement of the temporary crown with the new side and central bands were marked with black and red pencils
crown (Figures 34 and 35). A pick-up impression was taken to (Figures 39 to 41). The final shape and texture were reproduced
harmonize the shape of the crown with the structure soft tissues with diamond and tungsten burs (Figures 42 to 44).
(Figure 36). The temporary crown was recemented one last time After fine finishing and polishing, a gold marker was applied to
while the final crown was finalized in the laboratory by the dental visually check the texture (Figure 45).
technician. The crown looked very natural on the model and was therefore
A master model for controlling accuracy and shade was made ready to be cemented in situ (Figures 46, 47). After inserting and
with Vita Simulate light-curing material (for simulation of the shade removing the excess cement, the clinical result showed a restoration
of the 21 root) (Figure 37). A minimal cut back of the dentin core that was natural and individual in appearance and was harmonious-
was optimized with dentin 5M3 base, the incisal third with E05 ly placed into the esthetic area (Figures 48 and 49).