CEREC doctors.com - Q1 2017 - page 58

56 | CERECDOCTORS.COM | QUARTER 1 | 2017
T I P S | | | B Y F R E D G I O M B O L I N I , D . D . S .
the cerec ortho software uses a guided scanning method which is different from the way many of us are used to
scanning in CEREC Restorative.
6 Tips for Better Full-arch Scanning
Using CEREC Ortho 1.1 Software
TIP #1
TRACE THE GINGIVAL MARGIN
WITH THE RED BOX
In restorative, the red targeting box goes away as soon as it starts
stitching together the scans and images. In Ortho 1.1, the box stays
on, allowing you to target the gingival crest (Fig 1).
These spaces are critical in clear aligner therapy. The better
these areas are scanned, the better the aligners will grab the teeth
and move them. Do not forget to tip the camera mesial-distal to
capture as much of this space as possible.
TIP #2
MOVE THE CAMERA FASTER
In my opinion, this is the most important thing to do when scan-
ning in Ortho 1.1 or 1.0.
When I do my trainings I demo the speed at which you need to
scan, and ask others to try to move at that same rate through the
sweeps. Most of us move the camera around the arches too slowly.
If you are moving too slowly, the software has to work harder
to remove redundant data. This can lead to too much data and a
bogged down computer struggling to eliminate redundant data.
Toget a feel for a good scanning speed, watchDr.Mike Skramstad’s
Ortho 1.1 acquisition video at www.cerecdoctors.com/digital-
learning/view/course/cerec-ortho-1-1-part-2-live-acquisition-2.
TIP #3
WHEN IMAGING GOLD, MOVE THE CAMERA
FURTHER AND DRY THOROUGHLY
Imaging gold is always tricky, and you must keep the area very
dry. If you are having trouble imaging gold interproximals in the
complete jaw step, be sure to dry them and, while scanning, move
the camera more. I would suggest a half of a tooth forward and
behind each stubborn area. This helps the software figure out that
there is new data. This sometimes helps with areas that you fill in
that then get removed repeatedly by the software.
TIP #4
CAPTURE DISTAL SURFACES
OF THE TERMINAL MOLARS
This is by far the hardest area to capture. Clear aligner therapy
works better if you can lock in these tough-to-get distal surfaces.
Mandibular posteriors are tough, but the upper distal buccal area
of the maxillary molars can be the most challenging part of a
complete scan.
The easiest way to scan back there is to start on the occlusal
surface and then, as the patient slowly closes down, rotate the
camera to the buccal and then around to the distal. If needed,
have them push their jaw sideways to give you more clearance
to get around to the back side. At right, you can see how far the
patient has closed as the tongue is visible in this #2 buccal scan
(Fig 2).
TIP #5
DON’T HIT THE >> ARROW
UNTIL ALL THE SCANS ARE DONE
Click on the next catalog at the bottom of the screen (Fig. 3). For
example, after you have finished scanning the Lower Jaw, click on
the Upper Jaw box and repeat again for the Buccal.
People will sometimes click the >> while the current jaw is
still calculating. Not thinking it clicked properly, they will click it
again, which causes the program to go straight into model genera-
tion. Only hit the >> when you are satisfied with all your scans and
are ready to generate models.
TIP #6
CREATE AN “ORTHO-SUBMISSIONS” FOLDER
ON THE OMNICAM DESKTOP
If you are sending scans to Invisalign or ClearCorrect, save a copy
of your scans to a folder on your desktop. Until scans are saved
automatically as in restorative 4.4, you have to manually export
the scans as an .orthoimg file. The advantage to saving these scans
is that if these companies reject your scans, you can reload the
After training many on this software, I have six tips to get you scanning quickly and accurately.