Page 24 - DP Vol 19 No 2 HR_Neat

cosmetic section

Digital and Analog…

for an Outstanding Result

The case we present here was solved with the highest precision that digital can provide combined
with “the art of making by hand.” For a long time, i tried to take impressions and then print a Geller
model, and duplicate refractory matrices - however, without success. Thanks to good cooperation
with the Shera team, we were able to use their latest printer, which proves to be extremely accurate,
with their refractory material called Shera Refract, which allows for perfect duplication and perfect fit.

Mdt. Milos Miladinov

For the patient who came to us, we used the MEDIT i500 intraoral
scanner and the AFT facial scanner since we wanted to integrate very
accurate data into Exocad to create a predictable and repeatable result.
Once all the data were acquired, we proceeded to design her new
smile using various tooth libraries available in Exocad. Below we will
show the step-by-step procedures. The facial scanner has become a
must in our laboratory because of the highly accurate data that we can
use to place the intraoral scans of the patient onto the 3D photo of his
or her head. Using scan files of the mouth and head, we can superim- Fig 1
pose all 4 scans of the face (See Figures 4 through 7) and use them
as a digital facial arch to position the jaw in the scanned head. In this
way we can make a predictable design without fear of creating tilted
restorations, sloping lines, etc.
We apply the silicone impression on this scan and insert it into the
mouth. Once the material is cured, we remove it and scan it using the
intraoral scanner in order to send the scan as an STL file to the labo-
ratory so that they can overlay it with the intraoral scan in Exocad. In
this way we get an accurate position of the jaw in the 3D head.
Intraoral scanning was performed with a MEDIT i500 in HD for an
extra precise impression. The scan is fast, in color and optimized for a Fig 1-3:
perfect bite with no distortion on the full arches. Workflow
We have used this scanner for many full-mouth rehabilitations and Full digital/
also for screw-retained implant restorations without any problems Intraoral
scanner/Facial
with the final fit. scanner
We chose this scanner due to its good price, no extra or nontrans-
parent costs, no annual fee, and great accuracy and speed. Another
good reason to purchase this scanner is its ability to document before Fig 2 Fig 3

Fig 4-7:
First step.
Facial
Fig 4 Fig 5 Fig 6 Fig 7 scanning
24 Dental Practice i March-April 2023 i Vol 19 No 2