don't be nervous to make bold movements to capture these hard-to-reach areas
if there is any advice i can give to enhance your effectiveness during scanning
it's to always make bold and purpose-driven smooth movements welcome to eye tarot school
class is in session let's talk today about pre-treatment scanning and this could be for
the patient's initial visit to your office or a scan to record information for study
models wax models invisalign treatments or even appliances such as sports guards and night guards
our patient today is a brand new patient i'm selecting the new scan option i'm going to
allow it to load and then i'm filling in all the information on this drop down menu
since we are scanning a patient pre-treatment today i'm changing the case type to restorative
this option will allow you to send this case to the lab for a variety of pre-treatment needs
that i mentioned earlier due dates are set at a standard two week turnaround time unless you
change that manually for rush cases then i'm going to designate this scan to be sent to gledwell
dental lab as the recipient now the most important step here is to click on the pre-treatment scan
box rather than to leave that area blank let's get started with this live patient example and
talk about seating position and wand technique it is important to feel comfortable while scanning
the more i am straining while performing a scan the more i'm going to start to get fatigued my
preferred position is roughly 12 o'clock in relation to the patient's body and i'll
position the scanner either to my left or right at five o'clock or seven o'clock respectively
i'm holding the skinny wand in my dominant hand with my palm and fingers facing upwards
this initial hand posture is exactly the same whether i'm scanning the upper or the lower arch
my opposite hand is always standing by to retract to suction to provide a fulcrum or even act as a
stabilizing guide as you can see i have the lower arch selected on the left hand menu
i did this by just pressing on the image of the lower arch saliva bubbles at any debris can be
removed with an air blast and continued throughout the procedure if you need to
starting distal to the most posterior tooth in the arch i'm going to initiate the scan by
tapping on one of the buttons found on each side of the wand on this first pass i'm attempting to
acquire occlusal records only this patient does have both third molars present so it's really up
to you which side to begin with and feel the most comfortable as i'm wrapping around to the anterior
of this arch i need to stay more lingually inclined rather than looking straight down
at the incisal edges we're going to come back and recapture the incisal edge details later
a little side to side motion while moving along the occlusal surfaces of the molars helps the
wand to easily move past the cheeks and the lips especially if you're getting hung up there
now once you've made it all the way around the arch go ahead and just stop the scan by again
tapping one of the buttons found on the side of the wand i just want to review what we've already
scanned up to this point i'll tip and turn the scan here to show all the red areas that have yet
to be acquired so starting once again from the distal of the most posterior tooth on each side
i'm going to scan the lingual next however i need the scanner to recognize where i am and
pick up the previous scan where i left off so i'll start on the occlusal surface first
scan for a few seconds and wait until the old and new data meshes together then once the previous
scan appears on screen i can turn the wand to the lingual and start to move it around
the arch i'm most concerned about scanning the embrasures and undercut areas of the lingual now
as you can see i have turned the wand so it faces almost straight up to the ceiling and i will twist
it with both hands if i need to laterally left and right as i move along this arch don't be nervous
to make bold movements to capture these hard to reach areas if there is any advice i can give to
enhance your effectiveness during scanning it's to always make bold and purpose-driven smooth
movements now that i'm coming around to the distal lingual of the opposite side i'm going to stop the
scan once again and review it to make sure there are no missed spots this scan looks clean so i
can continue to the buckle for the buckle scan i'm going to do it a quadrant at a time and stop
the midline starting from the distal of the most posterior tooth in the arch i'll once again scan
the occlusal until the previous scan meshes together now that the full image is displayed
the wand rocks to the buckle and moves towards the midline staying as close to the teeth as possible
to reach the difficult interproximal areas here instead of the twisting method we used
on the lingual i'm going to lift the tail end of the wand up and down while progressing towards
the stopping point at the midline just taking a quick look here before moving to the adjacent arch
and everything looks to be in order so i'm going to go ahead and move on
now i'm always starting on the flat occlusal surface allowing the scans to mesh
and then i move along the buckle in the same fashion towards the midline
give every segment a quick check to make sure you get the right information recorded
the last bit of info that you need to scan for full arches are the incisal edges
you are always going to make this the last step after all other surfaces are completed
all we need to do here is rock the wand buckle the lingual over the incisal edges
once on the right and once on the left to capture the edge details
like i keep saying i still want to start on a flatter posterior surface to help the wand
mesh the scans together maybe just start on the bicuspids until the mesh happens and then rock
the wand buckle to lingual moving towards the midline make this scan last no more than 3 to 5
seconds and then review the final scan to make sure it's complete
when manipulating the scan on screen there are a couple options you have to view
all angles of the scan using one finger moving around on the screen will rotate the scan on its
axis without actually moving it around from its center position holding two fingers on the screen
will allow the scan to move to a new location however the scan is not going to tip and turn