hello welcome to cheer side live I'm Megan strong and I'm will Schmidt register dental assistant
here at gladwell dental all right well you ready to two-step Megan I would always love the dance
with you I didn't want my dancing boots today well that's unfortunate but it's also fortunate because
I'm not talking about the dance I'm talking about the two-step impression technique oh of course
it's not just a worldwide dance craze it's also an amazing way to take full arts impressions on night
guards sports cards smell transitions appliances the list goes on yeah it's definitely an important
technique to have in your wheelhouse so let's get to it let's talk about making great full-mouth
pretreatment impressions today now if taking a digital scan is simply not an option in your
practice taking a perfect VPS impression is just as important I'd like to show step by step the way
we recommend full-mouth pretreatment impressions for full-arch removable appliances as well as
diagnostic model work to be taken your setup for this impression should include the capture soft
but II kit this is a basin catalyst kit complete with two spoons for and even one-to-one mixing
ratio a capture VPS crown oral set medium bodies syringe Abel material including to mixing tips we
prefer these tips to be in the 5.4 millimeter gauge size also caps for VPS fast oral set by
registration paste with just one mixing tip this tip we prefer to be in the six point five
millimeter gauge size you're going to use a full arch maxillary and mandibular impression tray get
four cotton rolls and a plastic headrest cover or a chair cover with a pretty standard pair of
scissors so get these plastic sheets ready we're going to cut about a four by four inch square out
of the folic cover open it up if you need to and cut it again through the midline just to separate
it into two four by four inch squares now cut each square from the midline of one side to the center
of the square this is just to give the plastic some flexibility to be manipulated during the
impression process it's also recommended to the bps syringes for the initial use as well as every
time the tip has changed to make sure a uniform one-to-one ratio of material is always used
Tryon incise both the upper and lower impression trays first it's also a good idea to make sure
that the lips can fold pretty cleanly around the anterior portion of the tray after you put
it in now starting with this lower tray hand mix a pretty heaping spoonful of both the putty base and
the catalyst in equal parts until that mixture is just one solid color roll the putty into a
cylinder and shape it into that impression tray hand form a slight indentation where the teeth
will rest put one of your pre-cut plastic squares centered on top of the tray with the tongue cut
area between these arches I try to cover up all expose impression putty with this plastic sheet
place the entire assembly in the mouth and seat it into place first with hand pressure next place two
cotton rolls bilaterally at the bicuspid area and ask the patient to bite into them firmly
manipulation of the lip can aid in the formation of this putty tray and after 5 seconds of firm
pressure remove that tray from the patient's mouth well this putty is still pretty soft take off that
plastic sheet and you can hand manipulate the putty just to remove any potential undercut
areas or stretch and mold a more ideal tray shape basically what we're trying to accomplish here
with this step is the formation of a chair side custom tray now start adding the syringe Abel
medium body material directly into the tray while keeping the mixing tip buried you're trying to
avoid air bubbles from becoming trapped all this is accomplished while the putty is still caring
to aid in the eventual integration of both of these layers together now this entire assembly is
now placed back in the mouth and seated just with hand pressure I'm gently pressing the chin in the
cheek area and that's going to help the flow the medium body material and just to remove any air
bubbles that may be present the most important technique requirement at this stage is to make
sure that this tray is held in with hand pressure only don't ask the patient to bite on any props to
hold this in place the impression can be removed after it's set and check to make sure everything
is in order the same procedure steps can now be performed with the upper arch the putty is
mixed it's rolled and then we shape it into the tray the remaining plastic sheet is placed over
the center of the tray with the center cut line at this time of the paddle area this assembly
is placed in the mouth lips are folded over the anterior hand pressure initially seats the tray
and then the cotton rolls bitten into place around the bicuspid area are used to completely seat it
after 5 seconds of biting pressure take out the tray take off the plastic hand form the putty if
you need to and then immediately begin to fill the tray with medium body VPS I'm asking this patient
to lean their head forward just to prevent this material from going down their throat reseat the
tray with hand pressure only palpate the cheeks and lips to remove air bubbles and void and then
hold the tray continuing with hand pressure only until the impression has set and may be removed
the final step requires a byte registration of the patient's arches in centric occlusion we do
recommend the use of the capture VPS fast oral set by tradition pastes spread out over the full
arch allowed to set and then removed thank you for watching this informative video on
Glidewell dentals recommended steps to acquiring full mouth pretreatment impressions for full arch
removable appliances as well as diagnostic model work to be taken well thank you well
not a problem Megan it was double the fun to put that one together the puns from this one
well if you're ready for some more fun and earn free seee credits head on over to global dental
comm where you can take dr. Joe Zola's course crown and bridge clinical tips for success
that's right leave it his tried-and-true methods so it's time to go check them out
for free well for today's episode we're all wrapped up so on behalf of everyone here at
viral dental thank you so much for watching and we'll meet you right back here next time
you