The patient’s situation demonstrates:
a.
advanced wear on a lot of the teeth
b.
problems of differing shades and PFMs that stand out
c.
spaces that needed to be closed on the uppers
d.
all of the above
The reverse preparation technique:
a.
allows you to make adequate reduction for veneers, all-ceramic crowns or PFM crowns
b.
starts off with a round bur
c.
begins with prepping the gingival margin first
d.
all of the above
When preparing adjacent teeth:
a.
a diamond disk turbo crown cutter makes quick work of gingival margins
b.
a large bur is harder to work with because it has more surface area in contact with the teeth
c.
a large bur is used to cut the interproximal margin of both teeth at the same time
d.
all of the above
For this case, an incisal reduction of 1.5 mm:
a.
was not required because the teeth were being lengthened
b.
was enough because there had been some wear and because the teeth were being lengthened slightly
c.
would be inadequate because central incisors typically require 2.0 mm of incisal reduction
d.
none of the above
It is true that:
a.
when connecting the depth cuts, incisal edges were paralleled to the patient’s interpupillary lines
b.
a barrel diamond was used to provide 1.5 mm facial depth cuts
c.
both a and b
d.
none of the above
Under-reduction:
a.
is one of the biggest problems that is seen in the dental laboratory
b.
is not good for the gingiva
c.
is not good for esthetics
d.
all of the above
Final margination:
a.
is done with a 00 (double-zero) cord in place
b.
is not required with the reverse preparation technique
c.
is done with a football bur on the lingual, resulting in a concave shape on the lingual surface
d.
both a and c
Lab-fabricated (e.g., Biotemps®) temporaries:
a.
were relined with a methyl methacrylate (e.g., Lang’s Jet Acrylic)
b.
were relined with bis-acryl resin because it was a large case and there were no draw problems
c.
did not require relining because they were made to models of prepared teeth
d.
none of the above
Which of the following is not true about lab-fabricated temporaries:
a.
they will typically drop into place with adequate tooth reduction
b.
painting Vaseline onto facial surfaces helps prevent the reline material from sticking
c.
shaping the embrasures to allow cleansing will help promote gingival healing
d.
all of the gingival embrasures should be closed to help prevent recession
When cementing the lab-fabricated temporaries:
a.
optional steps of placing desensitizing and dentin bonding agents were used
b.
running floss through the embrasures was not done because that can dislodge temporaries
c.
an unfilled resin should never be applied to the anterior surfaces of the temps
d.
none of the above
Facial recontouring of the lower anteriors:
a.
eliminates the need for facial depth cuts
b.
is only necessary for teeth that are too far out to the facial
c.
may be used to correct tooth-size discrepancies
d.
none of the above
When preparing the teeth for porcelain veneers:
a.
rounding off sharp line angles is necessary
b.
existing restorations can be incorporated in the veneer preparation
c.
more reduction may be necessary to cover a dark stump shade
d.
all of the above
Breaking the contacts during tooth reduction for veneers:
a.
should always be avoided for upper venners but not lower veneers
b.
may be necessary to move a midline or contacts or correct for tooth-size discrepancies
c.
should always be avoided on lower veneers but not upper veneers
d.
none of the above
Supragingival lower veneer margins:
a.
are easier to impress and are not visible in non-critical esthetic areas
b.
are more difficult to finish properly
c.
both a and b
d.
none of the above
Incisal reduction for lower incisal veneers:
a.
is about 1.5 mm, where necessary
b.
is not required where the teeth are too short and need to be built up
c.
does not require a lingual chamfer if the bur is slanted back at about a 30-degree angle
d.
all of the above
After preparing the lowers for veneers:
a.
a bite registration for the laboratory is taken before temporization
b.
a bite registration for the laboratory is taken after temporization
c.
both a and b
d.
none of the above
Technique tips that were used for this case study include:
a.
incorporating a bite stick, parallel to the interpupillary line, into the facial of the bite registration
b.
temporization of the lowers using a putty-wash matrix impression of a diagnostic wax-up
c.
cementing of temporaries that were made in the office because sufficient draw allowed removal
d.
all of the above
Which statement(s) is/are true:
a.
packing cord around lower anterior teeth is very difficult
b.
packing cord around supragingival margins is not necessary
c.
removal and finishing clear temporary cement is easier with loupes and supragingival margins
d.
all of the above
If micro leakage is noticed after the removal of temporaries:
a.
a mosquito bur followed by a polishing wheel should be used to remove stains
b.
staining is immediately and conservatively cleaned up with hydrogen peroxide
c.
both a and b
d.
none of the above
When placing anterior veneers:
a.
try-in must be done individually, at first, and then all together with try-in paste
b.
a thin bonding agent was cured onto the prepared teeth before cementing the veneers
c.
removal of the excess cement in a gel-state (using the tack and wave technique) was demonstrated
d.
all of the above
