let's explore of an ear case using our obsidian lithium silicate ceramic material this
high-strength monolithic ceramic is more than just strong it's also beautiful let's see it in action
in this next case patient was unhappy with her gummy smile her teeth and her facial profile after
carefully planning the solution to her problem with our in-house oral surgeon dr. Peter shear
her treatment included aesthetic crown lengthening by gingiva Tommy and austech t'me to reduce the
amount of gingival display and also genioplasty to correct her facial profile after all options
were presented patient also agreed to ten prep veneers using our obsidian lithium silicate
ceramic to demonstrate what the possibilities were for improving patient smile a cosmetic resin
markup was performed chairside at the consultation appointment using the diagnostic wax up I did the
mock up using a body wash impression matrix and after injecting laxative material I placed it
in the patient mouth after the patient had the opportunity to look at her smile the decision
was made for ten obsidian veneers that will have the Central's longer than the laterals after the
gingiva was allowed to hear from the surgery another pre valuating set of temporaries was
used that took in consideration the gingival repositioning I used this set to place facial
depth at here I use a depth cut burr from Rustler USA that provided a 0.3 millimeter depth gingival
a 0.5 millimeter at the middle third and 0.7 millimeter in size away providing a preparation
that follows the three different planes once I was done with the depth cut I marked the horizontal
grooves with a pencil and used the curette to flick the metrics off to finish the preparation
a eight five six zero one two round and the diamond bur was also used from bracelet this
temporary mock-up prevents any unnecessary entry into the tooth and helped me keep the preparation
on the enamel and precisely control my facial depth cut before final impression patient where
the temporary for an additional week great care was taking to open the gingival embrasure so not
to create any damage to the papua at the final impression appointment almost always after the
removal of the temporary there will be some area that needs to be cleaned up and so using
the white stone will remove any residual from the area where the temporary was spot edge using
a double core technique to expose the tooth apical e will definitely aid in the help of
the technician to see the tooth below the margin so that the technician will have a better idea on
how to counter the margin and blend the Obsidian material into the existing teeth counter before
taking the final impression I use grip strip to carefully separate the interproximal so that the
technician could see the margins after removing the second cord I use capture veneer poly silicon
impression system here I'm syringe in medium body on the prepared teeth while my assistant
was loading up the tray a full art in precision material was filled with capture heavy body the
impression was left to set in the patient's mouth for three minutes also a hard bite was taken with
capture material in order to better communicate the shade to the lab also stamp shade was taking
available in a Vita classic and bleaching shades obsidian material has great optical properties and
it can be pressed or produced by CAD cam here is the final segmentation appointment obsidian
press veneer were tried in with water to ensure color and to ensure that everything fits at this
point the patient got a chance to look in the mirror and approve her new restorations after
cleaning the prepared teeth with preppies pumice from whip mix g5 was put down as an antibacterial
and desensitizer agent and because the preparation was on an amo I could use an a Dec air to dry to
prevent any contamination a and B primers was up right to get the tooth ready for the resin
cement prior to cementation the intaglio surface of each veneer was treated with hyper clean for 20
seconds before loading the veneers with multi-link also mono bond plus was applied for 60 seconds in
terms of isolation I use scatter rolls and metric bands the veneers were placed in 2 sets at the
time and hold into place using wooden sticks applying light pressure on the fascia and the
incisor to ensure correct sitting for this case I thought was easier to bond the veneer in place
starting with the posteriors to get them out of the way then I went back to the two centrioles
and work my way towards the cuspids prior to the final cure I use small amount of glycerine
liquid strip from IVA klaar to ensure that there will be no oxygen inhibiting at the margins once
the veneers were talked and waved into place the matrix was removed to allow the removal of excess
cement I used an explorer to cleave off the excess and a little saw to separate the cement from the
interproximal area with an average back see of strength of 397 mega Pascal's obsidian lithium
silicate ceramic exceeds the strength requirement for all ceramic restorations making this material
a good choice for this case because the veneer were extended posteriorly to the
maxillary premolars patient bite and lateral exclusion were checked and final restorations
were evaluated for phonetics after all the necessary adjustment a rubber cap was used to
polish the final restoration overall this obsidian smile makeover exceeded our patient expectation
well that about wraps it up for this episode of chairside live on behalf of everyone here
at Gladwell laboratories we thank you for watching and hope you'll come back next week
you