CDT ACTUAL EXAM SCRIPT QUESTIONS AND ANSWERS
RATED A+
✔✔Which wax is MOST ideal for dipping refractory casts? - ✔✔beeswax
✔✔What is the correct term for describing the diameter of a metal wire? - ✔✔gauge
✔✔What are three MOST important qualities of a master cast? - ✔✔accurate, dense
and strong
✔✔When may auxiliary sprues be indicated? - ✔✔when there is a large isolated clasp
on a molar abutment
✔✔Why is a dry master cast NOT desirable for duplication? - ✔✔would cause difficulty
in its removal
✔✔Which is not a bar clasp assembly? - ✔✔hairpin
✔✔Which side of the wax should you use the hot spatula on when sealing the beading
wax to the impression? - ✔✔the side farthest from the peripheral roll of the impression
✔✔What color is reserved for outlining metal parts of the RPD? - ✔✔brown
✔✔Which is not a general guideline for placing a rest on a metal based partial? - ✔✔A
clasp assembly never has a rest associated with it.
✔✔What color is used on a master cast to outline the extent of acrylic resin denture
base coverage? - ✔✔blue
✔✔Why is it important to make multiple dove-tail cuts in the area previously occupied by
the distal extension of an altered cast? - ✔✔provides mechanical retention for the
corrected addition
✔✔Imperfections in distal extension casts can be corrected using what process? -
✔✔altered cast technique
✔✔Before setting on a removable partial denture, the cast should - ✔✔have a separator
applied prior to adding wax.
✔✔What is the minimal metal thickness in stress bearing areas of the partial denture? -
✔✔.5 mm
✔✔When soldering cast partials, which type of flux is recommended? - ✔✔fluoride
, ✔✔Which of the following is most correct when finishing a partial denture with
peripheral borders? - ✔✔The borders should remain unaltered
✔✔What should be used to remove resin flash from the necks of teeth when finishing
the denture? - ✔✔trimming chisel
✔✔When using an oxygen torch for casting partial frames, the torch tip should be -
✔✔multi-orifice with a reducing flame
✔✔Why should water be allowed to cover only the base of the flask while cooling the
hydrocolloid during cast duplication? - ✔✔to allow it to cool it from the bottom upward
✔✔What is the best choice of major connector for a Class IV maxillary Kennedy case? -
✔✔horseshoe
✔✔What is the correct term for describing the diameter of a metal wire? - ✔✔gauge
✔✔Which of the following is MOST correct when polishing a chrome partial denture? -
✔✔use high speed (24,000 rpm) and light pressure
✔✔What which of the following is the proper technique for replacing a cast
circumferential clasp with a wrought wire clasp? - ✔✔embed a retentive loop in self-
curing acrylic
✔✔What movements can fixed-guide articulators made to produce? - ✔✔lateral and
protrusive
✔✔What color on a master cast is limited to marking points of undercut for positioning
clasp retentive tips and tissue relief areas? - ✔✔red
✔✔Which class best represents a single but bilateral edentulous area located anterior
to the remaining natural teeth? - ✔✔Class IV
✔✔What should be used to secure the tooth to the framework when replacing or adding
an artificial tooth to a metal framework? - ✔✔self-curing resin
✔✔Why is it important to make multiple dove-tail cuts in the area previously occupied by
the distal extension of an altered cast? - ✔✔provides mechanical retention for the
corrected addition
✔✔provides mechanical retention for the corrected addition - ✔✔ejector press
RATED A+
✔✔Which wax is MOST ideal for dipping refractory casts? - ✔✔beeswax
✔✔What is the correct term for describing the diameter of a metal wire? - ✔✔gauge
✔✔What are three MOST important qualities of a master cast? - ✔✔accurate, dense
and strong
✔✔When may auxiliary sprues be indicated? - ✔✔when there is a large isolated clasp
on a molar abutment
✔✔Why is a dry master cast NOT desirable for duplication? - ✔✔would cause difficulty
in its removal
✔✔Which is not a bar clasp assembly? - ✔✔hairpin
✔✔Which side of the wax should you use the hot spatula on when sealing the beading
wax to the impression? - ✔✔the side farthest from the peripheral roll of the impression
✔✔What color is reserved for outlining metal parts of the RPD? - ✔✔brown
✔✔Which is not a general guideline for placing a rest on a metal based partial? - ✔✔A
clasp assembly never has a rest associated with it.
✔✔What color is used on a master cast to outline the extent of acrylic resin denture
base coverage? - ✔✔blue
✔✔Why is it important to make multiple dove-tail cuts in the area previously occupied by
the distal extension of an altered cast? - ✔✔provides mechanical retention for the
corrected addition
✔✔Imperfections in distal extension casts can be corrected using what process? -
✔✔altered cast technique
✔✔Before setting on a removable partial denture, the cast should - ✔✔have a separator
applied prior to adding wax.
✔✔What is the minimal metal thickness in stress bearing areas of the partial denture? -
✔✔.5 mm
✔✔When soldering cast partials, which type of flux is recommended? - ✔✔fluoride
, ✔✔Which of the following is most correct when finishing a partial denture with
peripheral borders? - ✔✔The borders should remain unaltered
✔✔What should be used to remove resin flash from the necks of teeth when finishing
the denture? - ✔✔trimming chisel
✔✔When using an oxygen torch for casting partial frames, the torch tip should be -
✔✔multi-orifice with a reducing flame
✔✔Why should water be allowed to cover only the base of the flask while cooling the
hydrocolloid during cast duplication? - ✔✔to allow it to cool it from the bottom upward
✔✔What is the best choice of major connector for a Class IV maxillary Kennedy case? -
✔✔horseshoe
✔✔What is the correct term for describing the diameter of a metal wire? - ✔✔gauge
✔✔Which of the following is MOST correct when polishing a chrome partial denture? -
✔✔use high speed (24,000 rpm) and light pressure
✔✔What which of the following is the proper technique for replacing a cast
circumferential clasp with a wrought wire clasp? - ✔✔embed a retentive loop in self-
curing acrylic
✔✔What movements can fixed-guide articulators made to produce? - ✔✔lateral and
protrusive
✔✔What color on a master cast is limited to marking points of undercut for positioning
clasp retentive tips and tissue relief areas? - ✔✔red
✔✔Which class best represents a single but bilateral edentulous area located anterior
to the remaining natural teeth? - ✔✔Class IV
✔✔What should be used to secure the tooth to the framework when replacing or adding
an artificial tooth to a metal framework? - ✔✔self-curing resin
✔✔Why is it important to make multiple dove-tail cuts in the area previously occupied by
the distal extension of an altered cast? - ✔✔provides mechanical retention for the
corrected addition
✔✔provides mechanical retention for the corrected addition - ✔✔ejector press
