MN LDA Licensure (Actual) Exam Solved
______ polishing refers to polishing root surfaces that have been exposed during
periodontal surgery. - ANSWER-therapeutic
a _____ is a point of support that works as a lever for movement - ANSWER-fulcrum
A right-handed operator generally begins seated at ____ o'clock and a left-handed
operator at _____ o'clock. - ANSWER-8; 3
a stain that is dull and yellowish-brown in color is caused by? - ANSWER-inadequate
toothpaste or poor hygiene
after preparing the tooth for bonding brackets, the sealant is places on the ____ and the
bonding material on the ____. - ANSWER-tooth; bracket
alginate impressions must be poured within ___ so that distortion does not occur -
ANSWER-1 hour
alginate material that is not setting or setting too rapidly can be the result of which
factor? - ANSWER-expired shelf life, humidity, improper storage
although technique may vary, when assisting a dentist in taking an elastomeric
impression, mix the light bodied material first - ANSWER-true
An anterior open bite refers to which condition? - ANSWER-Maxillary and mandibular
anterior teeth do not touch
an impression is a positive reproduction of teeth and surrounding oral tissues. the model
created from the impression is a negative reproduction of the surfaces - ANSWER-
neither statement is correct
an impression should be sufficiently deep to allow___ mm of material between the tray
and the incisal or occlusal edges of the teeth. - ANSWER-2 - 3
An orthodontic tooth positioner is not used for what purpose? - ANSWER-separate the
teeth before banding
Arch wires that are made of _____ are useful in early stages of treatment because they
are flexible. - ANSWER-nickel titanium
before placement of_____ separators may be necessary. - ANSWER-bands
black stain: - ANSWER-Has no relationship to poor oral hygiene.
,Black stains are caused by? - ANSWER-water minerals
Buccal arch wire tubes are located on which bands? - ANSWER-maxillary first molar
clinical researchers have shown that sealing the margins of amalgam and composite
restorations with unfilled resins will do which of the following? - ANSWER-arrest the
progression of caries, preserve existing restorations, preserve tooth structure
dental sealants replace other preventative care - ANSWER-false
during a crown preparation appointment, when are preformed provisional crowns tried in
for size and shape? - ANSWER-after
During cementation of bands, the cement is placed on the: - ANSWER-inner surface of
the band
During the frontal evaluation of facial esthetics, the face is examined? - ANSWER-To
examine for bilateral symmetry
Elastic separators can be left in the mouth for ____ days, and steel can be left in the
mouth for _____ days. - ANSWER-14;5
elastomeric materials use an automix system. the extruder gun insert is either catalyst
or base. - ANSWER-both statement are correct
enamel that has been etched has what appearance when dry? - ANSWER-frosty
Exogenous stains are caused by environmental sources and are classified into
subdivisions, including which of the following? - ANSWER-intrinsic stains and extrinsic
stains
For what are disclosing agents used? - ANSWER-Identify areas of plaque, evaluate
effectiveness of polishing
how are alginate impressions removed frommthe mouth? - ANSWER-use one quick
snap out motion
how can length or depth of the alginate impression tray borders be extended? -
ANSWER-utility wax
how far below the margin of the preparation should the provisional crown sit? -
ANSWER-the provisional should be flush with the margin
how is a patient instructed to clean under the archwire? - ANSWER-use an interdental
brush, use a floss threader, use a waterpik
, how is an alginate impression disinfected? - ANSWER-spray the alginate with an
intermediste level disinfectant
how is the imoression tray prepared for an elastomeric impression? - ANSWER-coated
with adhesive
How should a bristle brush be used? - ANSWER-Apply lightly to the tooth surface while
revolving at the lowest speed
how should alginate material be loaded into a maxillary impression tray? - ANSWER-
Heavier in the anterior and labial areas
How should cement be placed into an indirect restoration for delivery? - ANSWER-add
a thin lining to cover all internal walls of the casting
How should dental cements be dispensed for mixing? - ANSWER-dispense the powder
first, and then the liquid
How should glass ionomer cement be mixed to increase the working time? - ANSWER-
on a glass slab
how should polycaboxylate cement appear once setting has initiated? - ANSWER-
stringy or weblike
How should the interior of a porcelain crown be treated before cementation? -
ANSWER-roughened using air abrasion
how will a water temperature of 80F affect an alginate mix? - ANSWER-it will make the
mix set faster
If scaling the teeth is indicated before polishing, the _____ performs the scaling. -
ANSWER-DDS or RDH
if the liquid or powder acrylic material is being used for the provisional how many drops
of liquid are used? - ANSWER-10
if used as a base, zinc phosphate requires the use of a liner first - ANSWER-true
if you use an air polishing device with sodium bicarbonate for cleaning enamel, it should
be repeated a second time or _____ should be applied for 10 seconds. - ANSWER-3%
hydrogen peroxide
in class ____ occlusion, or distoclusion, the mandibular arch and the body of the
mandible are in bilateral, , distal relationship to the maxillary teeth - ANSWER-II
______ polishing refers to polishing root surfaces that have been exposed during
periodontal surgery. - ANSWER-therapeutic
a _____ is a point of support that works as a lever for movement - ANSWER-fulcrum
A right-handed operator generally begins seated at ____ o'clock and a left-handed
operator at _____ o'clock. - ANSWER-8; 3
a stain that is dull and yellowish-brown in color is caused by? - ANSWER-inadequate
toothpaste or poor hygiene
after preparing the tooth for bonding brackets, the sealant is places on the ____ and the
bonding material on the ____. - ANSWER-tooth; bracket
alginate impressions must be poured within ___ so that distortion does not occur -
ANSWER-1 hour
alginate material that is not setting or setting too rapidly can be the result of which
factor? - ANSWER-expired shelf life, humidity, improper storage
although technique may vary, when assisting a dentist in taking an elastomeric
impression, mix the light bodied material first - ANSWER-true
An anterior open bite refers to which condition? - ANSWER-Maxillary and mandibular
anterior teeth do not touch
an impression is a positive reproduction of teeth and surrounding oral tissues. the model
created from the impression is a negative reproduction of the surfaces - ANSWER-
neither statement is correct
an impression should be sufficiently deep to allow___ mm of material between the tray
and the incisal or occlusal edges of the teeth. - ANSWER-2 - 3
An orthodontic tooth positioner is not used for what purpose? - ANSWER-separate the
teeth before banding
Arch wires that are made of _____ are useful in early stages of treatment because they
are flexible. - ANSWER-nickel titanium
before placement of_____ separators may be necessary. - ANSWER-bands
black stain: - ANSWER-Has no relationship to poor oral hygiene.
,Black stains are caused by? - ANSWER-water minerals
Buccal arch wire tubes are located on which bands? - ANSWER-maxillary first molar
clinical researchers have shown that sealing the margins of amalgam and composite
restorations with unfilled resins will do which of the following? - ANSWER-arrest the
progression of caries, preserve existing restorations, preserve tooth structure
dental sealants replace other preventative care - ANSWER-false
during a crown preparation appointment, when are preformed provisional crowns tried in
for size and shape? - ANSWER-after
During cementation of bands, the cement is placed on the: - ANSWER-inner surface of
the band
During the frontal evaluation of facial esthetics, the face is examined? - ANSWER-To
examine for bilateral symmetry
Elastic separators can be left in the mouth for ____ days, and steel can be left in the
mouth for _____ days. - ANSWER-14;5
elastomeric materials use an automix system. the extruder gun insert is either catalyst
or base. - ANSWER-both statement are correct
enamel that has been etched has what appearance when dry? - ANSWER-frosty
Exogenous stains are caused by environmental sources and are classified into
subdivisions, including which of the following? - ANSWER-intrinsic stains and extrinsic
stains
For what are disclosing agents used? - ANSWER-Identify areas of plaque, evaluate
effectiveness of polishing
how are alginate impressions removed frommthe mouth? - ANSWER-use one quick
snap out motion
how can length or depth of the alginate impression tray borders be extended? -
ANSWER-utility wax
how far below the margin of the preparation should the provisional crown sit? -
ANSWER-the provisional should be flush with the margin
how is a patient instructed to clean under the archwire? - ANSWER-use an interdental
brush, use a floss threader, use a waterpik
, how is an alginate impression disinfected? - ANSWER-spray the alginate with an
intermediste level disinfectant
how is the imoression tray prepared for an elastomeric impression? - ANSWER-coated
with adhesive
How should a bristle brush be used? - ANSWER-Apply lightly to the tooth surface while
revolving at the lowest speed
how should alginate material be loaded into a maxillary impression tray? - ANSWER-
Heavier in the anterior and labial areas
How should cement be placed into an indirect restoration for delivery? - ANSWER-add
a thin lining to cover all internal walls of the casting
How should dental cements be dispensed for mixing? - ANSWER-dispense the powder
first, and then the liquid
How should glass ionomer cement be mixed to increase the working time? - ANSWER-
on a glass slab
how should polycaboxylate cement appear once setting has initiated? - ANSWER-
stringy or weblike
How should the interior of a porcelain crown be treated before cementation? -
ANSWER-roughened using air abrasion
how will a water temperature of 80F affect an alginate mix? - ANSWER-it will make the
mix set faster
If scaling the teeth is indicated before polishing, the _____ performs the scaling. -
ANSWER-DDS or RDH
if the liquid or powder acrylic material is being used for the provisional how many drops
of liquid are used? - ANSWER-10
if used as a base, zinc phosphate requires the use of a liner first - ANSWER-true
if you use an air polishing device with sodium bicarbonate for cleaning enamel, it should
be repeated a second time or _____ should be applied for 10 seconds. - ANSWER-3%
hydrogen peroxide
in class ____ occlusion, or distoclusion, the mandibular arch and the body of the
mandible are in bilateral, , distal relationship to the maxillary teeth - ANSWER-II
