DENTAL- PAGE 2
DENTAL MCQs- PAGE 2
1:-Impression plaster containing potato starch is called.
A:-Plaster of Paris
B:-Soluble plaster
C:-Anti-expansion solution
D:-Die
Ans: B
2:-Packing the resin in sandy stage causes
A:-Distortion
B:-Porosity
C:-Inhomogeneous colour
D:-Increased strength
Ans: B
3:-Wash or corrective impression is done by
A:-Impression plaster
B:-Impression paste
C:-Alginate
D:-Agar
Ans: B
4:-Green shrinkage is seen in
A:-Gypsum products
B:-Agar impression material
C:-Firing of Porcelain
D:-Silicate bonded investment
Ans: D
5:-Model cement is
A:-Impression compound
B:-Resin bonded cement
C:-Sticky wax
D:-Soldering investment
Ans: C
6:-The angle made by floor of rest seat with the minor connector must be
A:-Less than 80 degree
B:-Less than 90 degree
C:-More than 90 degree
D:-More than 160 degree
Ans: B
7:-Labial bar is indicated when
A:-There is a diastema
B:-There is labial inclination of teeth
C:-There is lingual inclination of teeth
D:-There are periodontally weak teeth
Ans: C
8:-The superior border of lingual bar should lie
A:-At the cingulum of anterior teeth
B:-Deep in the lingual sulcus
C:-At least 4 mm below the gingival margin
D:-At least 7 mm below the gingival margin
Ans: C
9:-Functional cusp bevel is given for
A:-Marginal integrity
B:-Structural durability
C:-Retention and resistance form
D:-To improve the geometry of tooth surface
Ans: B
10:-The minimum gap between true end of casting ring and wax pattern should be
A:-`1/4` inch
B:-`1/2` inch
C:-`3/8` inch
D:-1 inch
Ans: A
11:-Polysulfide material is routinely not used because of
A:-Unpleasant odor and taste
B:-Low accuracy
C:-More permanent deformation
D:-Highest curing shrinkage
Ans: D
12:-Most dimensionally accurate lastomer is
A:-Polyether
B:-Polysulfide
C:-Addition silicone
D:-Condensation silicone
Ans: C
13:-The opacity in ceramics is achieved by adding
A:-Boric oxide
B:-Copper oxide
C:-Silica
D:-Titanium oxide
Ans: D
14:-The component of inlay wax that modifies the toughness and carving characteristics of the wax is
A:-Paraffin
B:-Gumdammar
C:-Carnauba
D:-Ceresin
Ans: D
15:-The first layer of porcelain applied onto metal in Porcelain fused to metal crowns would be
A:-Opaque
B:-Body
C:-Incisal
D:-Dentin
Ans: A
16:-The surface discoloration on a metal or alteration of the surface finish is known as
A:-Tarnish
B:-Corrosion
C:-Passivation
D:-Stabilisation
Ans: A
17:-The primary stress bearing area in mandibular arch is
A:-Crest of the alveolar ridge
B:-Retromolar pad
C:-Buccal shelf area
D:-Pterygomandibular raphae
Ans: C
18:-Retention in maxillary complete denture is provided by
A:-Maxillary tuberosity
B:-Rugae area
C:-Posterior palatol seal area
D:-Fovea palatinae
Ans: C
19:-Mean value or three point articulator comes under
A:-Class I articulator
B:-Class II articulator
C:-Class III articulator
D:-Class IV articulator
Ans: B
20:-The choice of pontic in mandibular posterior region is
A:-Ridge lap
B:-Modified ridge lap
C:-Sanitary
D:-Conical
Ans: C
A:-Plaster of Paris
B:-Soluble plaster
C:-Anti-expansion solution
D:-Die
Ans: B
2:-Packing the resin in sandy stage causes
A:-Distortion
B:-Porosity
C:-Inhomogeneous colour
D:-Increased strength
Ans: B
3:-Wash or corrective impression is done by
A:-Impression plaster
B:-Impression paste
C:-Alginate
D:-Agar
Ans: B
4:-Green shrinkage is seen in
A:-Gypsum products
B:-Agar impression material
C:-Firing of Porcelain
D:-Silicate bonded investment
Ans: D
5:-Model cement is
A:-Impression compound
B:-Resin bonded cement
C:-Sticky wax
D:-Soldering investment
Ans: C
6:-The angle made by floor of rest seat with the minor connector must be
A:-Less than 80 degree
B:-Less than 90 degree
C:-More than 90 degree
D:-More than 160 degree
Ans: B
7:-Labial bar is indicated when
A:-There is a diastema
B:-There is labial inclination of teeth
C:-There is lingual inclination of teeth
D:-There are periodontally weak teeth
Ans: C
8:-The superior border of lingual bar should lie
A:-At the cingulum of anterior teeth
B:-Deep in the lingual sulcus
C:-At least 4 mm below the gingival margin
D:-At least 7 mm below the gingival margin
Ans: C
9:-Functional cusp bevel is given for
A:-Marginal integrity
B:-Structural durability
C:-Retention and resistance form
D:-To improve the geometry of tooth surface
Ans: B
10:-The minimum gap between true end of casting ring and wax pattern should be
A:-`1/4` inch
B:-`1/2` inch
C:-`3/8` inch
D:-1 inch
Ans: A
11:-Polysulfide material is routinely not used because of
A:-Unpleasant odor and taste
B:-Low accuracy
C:-More permanent deformation
D:-Highest curing shrinkage
Ans: D
12:-Most dimensionally accurate lastomer is
A:-Polyether
B:-Polysulfide
C:-Addition silicone
D:-Condensation silicone
Ans: C
13:-The opacity in ceramics is achieved by adding
A:-Boric oxide
B:-Copper oxide
C:-Silica
D:-Titanium oxide
Ans: D
14:-The component of inlay wax that modifies the toughness and carving characteristics of the wax is
A:-Paraffin
B:-Gumdammar
C:-Carnauba
D:-Ceresin
Ans: D
15:-The first layer of porcelain applied onto metal in Porcelain fused to metal crowns would be
A:-Opaque
B:-Body
C:-Incisal
D:-Dentin
Ans: A
16:-The surface discoloration on a metal or alteration of the surface finish is known as
A:-Tarnish
B:-Corrosion
C:-Passivation
D:-Stabilisation
Ans: A
17:-The primary stress bearing area in mandibular arch is
A:-Crest of the alveolar ridge
B:-Retromolar pad
C:-Buccal shelf area
D:-Pterygomandibular raphae
Ans: C
18:-Retention in maxillary complete denture is provided by
A:-Maxillary tuberosity
B:-Rugae area
C:-Posterior palatol seal area
D:-Fovea palatinae
Ans: C
19:-Mean value or three point articulator comes under
A:-Class I articulator
B:-Class II articulator
C:-Class III articulator
D:-Class IV articulator
Ans: B
20:-The choice of pontic in mandibular posterior region is
A:-Ridge lap
B:-Modified ridge lap
C:-Sanitary
D:-Conical
Ans: C
21:-The ability of a prosthesis to resist displacement in a horizontal direction is called
A:-Retention
B:-Stability
C:-Support
D:-Esthetics
Ans: B
22:-Boxing is done to get
A:-Thickness of cast
B:-Land area of the cast
C:-Tissue surface of cast
D:-Peripheral tissue roll on the cast
Ans: A
23:-The fluoride release is greatest for
A:-Glass ionomer cement
B:-Zinc polycarboxylate cement
C:-Zinc phosphate cement
D:-Zinc oxide eugenol cement
Ans: A
24:-Black casting refers to
A:-Casting contaminated by `NO_(2)` gas
B:-Nodules present on the surface of casting
C:-Incomplete elimination of wax on burnout
D:-Absence of reservoir during casting
Ans: C
25:-The thickness of opaquer in ceramic restorations is
A:-0.1 mm
B:-0.5 mm
C:-0.2 mm
D:-0.3 mm
Ans: C
26:-The best duplicating material available is
A:-Alginate
B:-Agr-Agar
C:-Zinc oxide eugenol
D:-Waxes
Ans: B
27:-The material that is commonly used for implants
A:-Nickel
B:-Cobalt-Chromium
C:-Titanium
D:-Carbon
Ans: C
28:-Commonly used dental flux in soldering is
A:- Graphite
B:-Rouge
C:-Calcium carbonate
D:-Fluoride
Ans: D
29:-Stellate alloys are
A:-Cobalt – Chromium alloys
B:-Nickel – Titanium alloys
C:-Platinum – Palladium alloys
D:-Gold – Silver alloys
Ans: A
30:-The projection of maxillary anterior teeth beyond their antagonists in a horizontal plane is called
A:-Vertical dimension
B:-Over bite
C:-Over jet
D:-Occlusion
Ans: C
31:-Indirect retainer is
A:-Clasp
B:-Rest
C:-Minor connector
D:-Denture base
Ans: B
32:-Combination clasp is
A:-Circumferential clasp
B:-I bar
C:-Cast reciprocal arm and wrought retentive arm
D:-Cast retentive arm and wrought reciprocal arm
Ans: C
33:-Proximal plate is an
A:-Major connector
B:-Minor connector
C:-Indirect retainer
D:-Direct retainer
Ans: B
34:-Which of the following clasps have no reciprocal arm ?
A:-Circumferential clasp
B:-Embrasure clasp
C:-Reverse circlet clasp
D:-I bar
Ans: D
35:-Cantilever bridge replaces
A:-Maxillary central incisor
B:-Mandibular central incisor
C:-Maxillary lateral incisor
D:-Maxillary canine
Ans: C
36:-Which of the following material has got the highest tear strength ?
A:-Polysulfide
B:-Polyether
C:-Addition silicone
D:-Condensation silicone
Ans: A
37:-The principal ingredient by weight in agar hydrocolloid impression material is
A:-Borates
B:-Agar
C:-Hard wax
D:-Water
Ans: D
38:-The water powder ratio of Dental plaster is
A:-0.2 to 0.3
B:-0.3 to 0.4
C:-0.4 to 0.5
D:-0.5 to 0.6
Ans: C
39:-Rouge is used as a polishing agent for
A:-Acrylic
B:-Metal
C:-Gold
D:-Ceramic
Ans: C
40:-Investment used for casting metal-ceramic alloys is
A:-Gypsum bonded investment
B:-Phosphate bonded investment
C:-Silicate bonded investment
D:-Divestment
Ans: B
A:-Retention
B:-Stability
C:-Support
D:-Esthetics
Ans: B
22:-Boxing is done to get
A:-Thickness of cast
B:-Land area of the cast
C:-Tissue surface of cast
D:-Peripheral tissue roll on the cast
Ans: A
23:-The fluoride release is greatest for
A:-Glass ionomer cement
B:-Zinc polycarboxylate cement
C:-Zinc phosphate cement
D:-Zinc oxide eugenol cement
Ans: A
24:-Black casting refers to
A:-Casting contaminated by `NO_(2)` gas
B:-Nodules present on the surface of casting
C:-Incomplete elimination of wax on burnout
D:-Absence of reservoir during casting
Ans: C
25:-The thickness of opaquer in ceramic restorations is
A:-0.1 mm
B:-0.5 mm
C:-0.2 mm
D:-0.3 mm
Ans: C
26:-The best duplicating material available is
A:-Alginate
B:-Agr-Agar
C:-Zinc oxide eugenol
D:-Waxes
Ans: B
27:-The material that is commonly used for implants
A:-Nickel
B:-Cobalt-Chromium
C:-Titanium
D:-Carbon
Ans: C
28:-Commonly used dental flux in soldering is
A:- Graphite
B:-Rouge
C:-Calcium carbonate
D:-Fluoride
Ans: D
29:-Stellate alloys are
A:-Cobalt – Chromium alloys
B:-Nickel – Titanium alloys
C:-Platinum – Palladium alloys
D:-Gold – Silver alloys
Ans: A
30:-The projection of maxillary anterior teeth beyond their antagonists in a horizontal plane is called
A:-Vertical dimension
B:-Over bite
C:-Over jet
D:-Occlusion
Ans: C
31:-Indirect retainer is
A:-Clasp
B:-Rest
C:-Minor connector
D:-Denture base
Ans: B
32:-Combination clasp is
A:-Circumferential clasp
B:-I bar
C:-Cast reciprocal arm and wrought retentive arm
D:-Cast retentive arm and wrought reciprocal arm
Ans: C
33:-Proximal plate is an
A:-Major connector
B:-Minor connector
C:-Indirect retainer
D:-Direct retainer
Ans: B
34:-Which of the following clasps have no reciprocal arm ?
A:-Circumferential clasp
B:-Embrasure clasp
C:-Reverse circlet clasp
D:-I bar
Ans: D
35:-Cantilever bridge replaces
A:-Maxillary central incisor
B:-Mandibular central incisor
C:-Maxillary lateral incisor
D:-Maxillary canine
Ans: C
36:-Which of the following material has got the highest tear strength ?
A:-Polysulfide
B:-Polyether
C:-Addition silicone
D:-Condensation silicone
Ans: A
37:-The principal ingredient by weight in agar hydrocolloid impression material is
A:-Borates
B:-Agar
C:-Hard wax
D:-Water
Ans: D
38:-The water powder ratio of Dental plaster is
A:-0.2 to 0.3
B:-0.3 to 0.4
C:-0.4 to 0.5
D:-0.5 to 0.6
Ans: C
39:-Rouge is used as a polishing agent for
A:-Acrylic
B:-Metal
C:-Gold
D:-Ceramic
Ans: C
40:-Investment used for casting metal-ceramic alloys is
A:-Gypsum bonded investment
B:-Phosphate bonded investment
C:-Silicate bonded investment
D:-Divestment
Ans: B
41:-Guiding planes are
A:-Perpendicular to path of insertion
B:-Parallel to path of insertion
C:-Both of the above
D:-None of the above
Ans: B
42:-Super elasticity is exhibited by
A:-Stainless steel
B:-Nitinol
C:-Chrome cobalt alloy
D:-Titanium
Ans: B
43:-Type of corrosion caused by contact of two dissimilar metals used to fill opposing teeth is called
A:-Crevice corrosion
B:-Galvanic corrosion
C:-Stress corrosion
D:-Concentration cell corrosion
Ans: B
44:-Porosity occurring in the bulky portions of the heat cured acrylic complete denture is due to
A:-Insufficient pressure application during packing
B:-Time lag between packing and curing
C:-Directly placing the packed resin in water at 100°C
D:-Using fluid pour technique
Ans: C
45:-The occlussal clearance required for all metal crown is
A:-2 mm
B:-5 mm
C:-1-1.5 mm
D:-3 mm
Ans: C
46:-Combination clasp consists of
A:-Wrought wire reciprocal arm and cast retentive arm
B:-Wrought wire retentive arm and cast reciprocal arm
C:-Wrought wire retentive arm and wrought wire reciprocal arm
D:-Cast retentive arm and cast reciprocal arm
Ans: B
47:-RPI stands for
A:-Occlusal rest, Proximal plate, I bar
B:-Cingulam rest, proximal plate, I bar
C:-Rest, Proximal guide plane, I bar
D:-Rest, Proximal plate, Indirect retainer
Ans: A
48:-Of the three dimensions of color one which describes the dominant color of the object is
A:-Metamerism
B:-Value
C:-Chroma
D:-Hue
Ans: D
49:-All are true for porcelain teeth compared to acrylic teeth except
A:-Low co-efficient of thermal expansion
B:-Abrade the enamel quickly
C:-Can be adjusted when the inter occlusal distance is very less
D:-Held by the mechanical retention in the acrylic denture
Ans: C
50:-Suspend portion of the FPD that replaced the mission tooth is
A:-Retainer
B:-Connector
C:-Abutment
D:-Pontic
Ans: D
51:-Sprue with gauge number ______ is used for molars and premolars during casting.
A:-10 and 12
B:-6 and 8
C:-4 and 6
D:-5 and 7
Ans: A
52:-Die is
A:-Impression of single Tooth
B:-Impression of all Teeth
C:-Replica of single Tooth
D:-Replica of all Teeth
Ans: C
53:-Face bow is used for recording
A:-Orientation relation
B:-Centric relation
C:-Vertical jaw relation
D:-Horizontal jaw relation
Ans: A
54:-Terminal end of retentive arm of extra coronal retainer is placed on which area of the tooth ?
A:-Occlusal `3^(rd)` `
B:-Middle `3^(rd)`
C:-Junction of middle and Gingival `3^(rd)`
D:-Gingival `3^(rd)`
Ans: D
55:-Instrument kit used for making wax pattern for crown is
A:-PKT instruments
B:-Bergstrom instruments
C:-Hanau instruments
D:-Kennedy instruments
Ans: A
56:-IPS Empress is a type of
A:-Castable ceramic
B:-Pressable ceramic
C:-CAD-CAM ceramic
D:-Copy milled ceramic
Ans: B
57:-Cast duplicating material is
A:-Alginate
B:-Zinc Oxide eugenol
C:-Impression compound
D:-Agar Agar
Ans: D
58:-Investment material used for gold alloys
A:-Gypsum bonded
B:-Phosphate bonded
C:-Silicate bonded
D:-Divestment phosphate
Ans: A
59:-Dental stone is
A:-α hemihydrates
B:-β hemihydrates
C:-α dehydrate
D:-β dehydrate
Ans: A
60:-Firing temperature for low fusing dental porcelain
A:-1300°C-1400°C
B:-1101°C-1300°C
C:-850°C-1100°C
D:-700°C-850°C
Ans: C
61:-Jackson's triad consists of all except
A:-Functional efficiency
B:-Functional balance
C:-Structural balance
D:-Esthetic harmony
Ans: B
62:-Functional Regulator (FR) used for the treatment of anterior open bite is
A:-FR2
B:-FR3
C:-FR4
D:-FR5
Ans: C
63:-Canine retractor more commonly used in mandibular arch is
A:-Buccal canine retractor
B:-U loop canine retractor
C:-Palatal canine retractor
D:-Helical canine retractor
Ans: D
64:-Closure of midlinediastema is an example of
A:-Reciprocal anchorage
B:-Stationary anchorage
C:-Absolute anchorage
D:-Reinforced anchorage
Ans: A
65:-The arrowhead clasp is called
A:-Southend clasp
B:-Schwarz clasp
C:-Crozat clasp
D:-Jackson's clasp
Ans: B
66:-In Adam's clasp, the angulation of bridge to the long axis of tooth is
A:-90 degrees
B:-75 degrees
C:-45 degrees
D:-None of the above
Ans: C
67:-Stainless steel consists of
A:-18% chromium and 8% Cobalt
B:-18% chromium and 8% Nickel
C:-18% Chromium and 8% Carbon
D:-18% Chromium and 8% iron
Ans: B
68:-An example of Baker's anchorage is
A:-Intermaxillary anchorage using screws
B:-Intramaxillary anchorage using elastics
C:-Intramaxillary anchorage using screws
D:-Intermaxillary anchorage using elastics
Ans: D
69:-Clip-on retainer is also known as
A:-Kesling tooth positioner
B:-Bonded lingual retainer
C:-Spring aligner
D:-Begg retainer
Ans: C
70:-Space maintainer indicated in early loss of primary second molar before the eruption of `1^(st)` molar is called
A:-Nance palatal arch
B:-Distal shoe space maintainer
C:-Crown and loop space maintainer
D:-Band and loop space maintainer
Ans: B
71:-A double oral screen is used to correct
A:-Tongue thrusting
B:-Thumb sucking
C:-Lip biting
D:-Bruxism
Ans: A
72:-Expansion screws includes all except
A:-Hyrax type
B:-Issacson type
C:-Delaire type
D:-Hass type
Ans: C
73:-In stainless steel, resistance to tarnish and corrosion is due to the passivating effect of
A:-Carbon
B:-Cobalt
C:-Nickel
D:-Chromium
Ans: D
74:-Catalan's appliance is also known as
A:-Sved bite plane
B:-Upper anterior bite plane
C:-Lower inclined bite plane
D:-Upper inclined bite plane
Ans: C
75:-The ratio of artistic portion to anatomic portion in a study model is
A:-1 : 1
B:-1 : 2
C:-2 : 1
D:-None of the above
Ans: D
76:-The force level reduces to zero between two successive patient visits. The type of force is
A:-Continuous force
B:-Interrupted force
C:-Intermittent force
D:-None of the above
Ans: B
77:-In Andrew's six keys of occlusion, the key 3 is
A:-Rotation
B:-Crown angulation
C:-Molar relationship
D:-Crown inclination
Ans: D
78:-Active components of removable appliance includes all except
A:-Clasps
B:-Bows
C:-Springs
D:-Elastics
Ans: A
79:-Alterations in fluid dynamics in the periodontal ligament leads to tooth moment. This theory is called
A:-Pressure tension theory
B:-Blood flow theory
C:-Bone bending piezoelectric theory
D:-None of the above
Ans: B
80:-Wunderer's modification of activator is mostly used in the treatment of
A:-Class I malocclusion
B:-Class II malocclusion
C:-Class III malocclusion
D:-Open bite
Ans: C
81:-Lower lingual springs in Frankel appliance are used to
A:-To prevent supra-eruption of upper incisors
B:-To prevent supra-eruption of lower incisors
C:-To prevent supra-eruption of upper molars
D:-To prevent supra-eruption of lower molars
Ans: B
82:-Box elastics are used in correcting
A:-Open bite
B:-Cross Bite
C:-Deep bite
D:-None of the above
Ans: A
83:-Headgear deriving anchorage from the parietal region of the cranium is called
A:-Cervical headgear
B:-Occipital headgear
C:-Combination headgear
D:-Vertical pull headgear
Ans: D
84:-In twin block, angulation of inclined plane to the occlusal plane is
A:-70 degrees
B:-80 degrees
C:-90 degrees
D:-35 degrees
Ans: A
85:-Passive components of a fixed appliance include all except
A:-Bands
B:-Brackets
C:-Arch wires
D:-Lock pins
Ans: C
86:-Pellots of Frankel appliance are also called as
A:-Lower lingual springs
B:-Lingual crossover wire
C:-Lower lingual pads
D:-Lip pads
Ans: D
87:-Four basic bends in making wire components of orthodontic appliance includes all except
A:-Obtuse bend
B:-Right angle bend
C:-Acute bend
D:-Small radius bend
Ans: A
88:-Cross bite elastics are
A:-Intramaxillary elastics
B:-Intermaxillary elastics
C:-Box elastics
D:-None of the above
Ans: B
89:-Upper lip pads are present in
A:-FR III
B:-FR II
C:-FR IV
D:-FR V
Ans: A
90:-Selfsupporting canine retractor is also know as
A:-U loop canine retractor
B:-Helical canine retractor
C:-Buccal canine retractor
D:-Palatal canine retractor
Ans: C
91:-Molar distalization can be achieved using
A:-Bite planes
B:-Oral screen
C:-Lip bumper
D:-Catalan's appliance
Ans: C
92:-In bonded Rapid Maxillary Expansion, cast cap splints are made of
A:-Silver-copper alloy
B:-Cobalt-chromium alloy
C:-Polymethyl-methacrylare
D:-Nickel-titanium alloy
Ans: A
93:-Slow expansion is termed as
A:-Surgical expansion
B:-Skeletal expansion
C:-Dento-alveolar expansion
D:-Dental expansion
Ans: C
94:-The anchorage potential of tooth does not depend on
A:-Root form
B:-Crown form
C:-Ankylosed teeth
D:-Inclination of tooth
Ans: B
95:-Force effecting a tooth movement in apical direction is called
A:-Intrusion
B:-Tipping
C:-Translation
D:-Extrusion
Ans: A
96:-Coffin spring is a
A:-Guided spring
B:-Self-supported spring
C:-Compound spring
D:-Helical spring
Ans: B
97:-Seperators are classified as all except
A:-Brass wire seperators
B:-Kesling's spring seperators
C:-Ring seperators
D:-None of the above
Ans: D
98:-Thumb sucking can lead to
A:-Proclination of lower incisors
B:-Retroinclination of upper incisors
C:-Posterior open bite
D:-Retroinclination of lower incisors
Ans: D
99:-Split labial bow is used to correct
A:-Midline diastema
B:-Crowding
C:-Anterior deep bite
D:-Rotations
Ans: A
100:-Graphite is used as a
A:-Filler
B:-Solder
C:-Flux
D:-Antiflux
Ans: D
A:-Perpendicular to path of insertion
B:-Parallel to path of insertion
C:-Both of the above
D:-None of the above
Ans: B
42:-Super elasticity is exhibited by
A:-Stainless steel
B:-Nitinol
C:-Chrome cobalt alloy
D:-Titanium
Ans: B
43:-Type of corrosion caused by contact of two dissimilar metals used to fill opposing teeth is called
A:-Crevice corrosion
B:-Galvanic corrosion
C:-Stress corrosion
D:-Concentration cell corrosion
Ans: B
44:-Porosity occurring in the bulky portions of the heat cured acrylic complete denture is due to
A:-Insufficient pressure application during packing
B:-Time lag between packing and curing
C:-Directly placing the packed resin in water at 100°C
D:-Using fluid pour technique
Ans: C
45:-The occlussal clearance required for all metal crown is
A:-2 mm
B:-5 mm
C:-1-1.5 mm
D:-3 mm
Ans: C
46:-Combination clasp consists of
A:-Wrought wire reciprocal arm and cast retentive arm
B:-Wrought wire retentive arm and cast reciprocal arm
C:-Wrought wire retentive arm and wrought wire reciprocal arm
D:-Cast retentive arm and cast reciprocal arm
Ans: B
47:-RPI stands for
A:-Occlusal rest, Proximal plate, I bar
B:-Cingulam rest, proximal plate, I bar
C:-Rest, Proximal guide plane, I bar
D:-Rest, Proximal plate, Indirect retainer
Ans: A
48:-Of the three dimensions of color one which describes the dominant color of the object is
A:-Metamerism
B:-Value
C:-Chroma
D:-Hue
Ans: D
49:-All are true for porcelain teeth compared to acrylic teeth except
A:-Low co-efficient of thermal expansion
B:-Abrade the enamel quickly
C:-Can be adjusted when the inter occlusal distance is very less
D:-Held by the mechanical retention in the acrylic denture
Ans: C
50:-Suspend portion of the FPD that replaced the mission tooth is
A:-Retainer
B:-Connector
C:-Abutment
D:-Pontic
Ans: D
51:-Sprue with gauge number ______ is used for molars and premolars during casting.
A:-10 and 12
B:-6 and 8
C:-4 and 6
D:-5 and 7
Ans: A
52:-Die is
A:-Impression of single Tooth
B:-Impression of all Teeth
C:-Replica of single Tooth
D:-Replica of all Teeth
Ans: C
53:-Face bow is used for recording
A:-Orientation relation
B:-Centric relation
C:-Vertical jaw relation
D:-Horizontal jaw relation
Ans: A
54:-Terminal end of retentive arm of extra coronal retainer is placed on which area of the tooth ?
A:-Occlusal `3^(rd)` `
B:-Middle `3^(rd)`
C:-Junction of middle and Gingival `3^(rd)`
D:-Gingival `3^(rd)`
Ans: D
55:-Instrument kit used for making wax pattern for crown is
A:-PKT instruments
B:-Bergstrom instruments
C:-Hanau instruments
D:-Kennedy instruments
Ans: A
56:-IPS Empress is a type of
A:-Castable ceramic
B:-Pressable ceramic
C:-CAD-CAM ceramic
D:-Copy milled ceramic
Ans: B
57:-Cast duplicating material is
A:-Alginate
B:-Zinc Oxide eugenol
C:-Impression compound
D:-Agar Agar
Ans: D
58:-Investment material used for gold alloys
A:-Gypsum bonded
B:-Phosphate bonded
C:-Silicate bonded
D:-Divestment phosphate
Ans: A
59:-Dental stone is
A:-α hemihydrates
B:-β hemihydrates
C:-α dehydrate
D:-β dehydrate
Ans: A
60:-Firing temperature for low fusing dental porcelain
A:-1300°C-1400°C
B:-1101°C-1300°C
C:-850°C-1100°C
D:-700°C-850°C
Ans: C
61:-Jackson's triad consists of all except
A:-Functional efficiency
B:-Functional balance
C:-Structural balance
D:-Esthetic harmony
Ans: B
62:-Functional Regulator (FR) used for the treatment of anterior open bite is
A:-FR2
B:-FR3
C:-FR4
D:-FR5
Ans: C
63:-Canine retractor more commonly used in mandibular arch is
A:-Buccal canine retractor
B:-U loop canine retractor
C:-Palatal canine retractor
D:-Helical canine retractor
Ans: D
64:-Closure of midlinediastema is an example of
A:-Reciprocal anchorage
B:-Stationary anchorage
C:-Absolute anchorage
D:-Reinforced anchorage
Ans: A
65:-The arrowhead clasp is called
A:-Southend clasp
B:-Schwarz clasp
C:-Crozat clasp
D:-Jackson's clasp
Ans: B
66:-In Adam's clasp, the angulation of bridge to the long axis of tooth is
A:-90 degrees
B:-75 degrees
C:-45 degrees
D:-None of the above
Ans: C
67:-Stainless steel consists of
A:-18% chromium and 8% Cobalt
B:-18% chromium and 8% Nickel
C:-18% Chromium and 8% Carbon
D:-18% Chromium and 8% iron
Ans: B
68:-An example of Baker's anchorage is
A:-Intermaxillary anchorage using screws
B:-Intramaxillary anchorage using elastics
C:-Intramaxillary anchorage using screws
D:-Intermaxillary anchorage using elastics
Ans: D
69:-Clip-on retainer is also known as
A:-Kesling tooth positioner
B:-Bonded lingual retainer
C:-Spring aligner
D:-Begg retainer
Ans: C
70:-Space maintainer indicated in early loss of primary second molar before the eruption of `1^(st)` molar is called
A:-Nance palatal arch
B:-Distal shoe space maintainer
C:-Crown and loop space maintainer
D:-Band and loop space maintainer
Ans: B
71:-A double oral screen is used to correct
A:-Tongue thrusting
B:-Thumb sucking
C:-Lip biting
D:-Bruxism
Ans: A
72:-Expansion screws includes all except
A:-Hyrax type
B:-Issacson type
C:-Delaire type
D:-Hass type
Ans: C
73:-In stainless steel, resistance to tarnish and corrosion is due to the passivating effect of
A:-Carbon
B:-Cobalt
C:-Nickel
D:-Chromium
Ans: D
74:-Catalan's appliance is also known as
A:-Sved bite plane
B:-Upper anterior bite plane
C:-Lower inclined bite plane
D:-Upper inclined bite plane
Ans: C
75:-The ratio of artistic portion to anatomic portion in a study model is
A:-1 : 1
B:-1 : 2
C:-2 : 1
D:-None of the above
Ans: D
76:-The force level reduces to zero between two successive patient visits. The type of force is
A:-Continuous force
B:-Interrupted force
C:-Intermittent force
D:-None of the above
Ans: B
77:-In Andrew's six keys of occlusion, the key 3 is
A:-Rotation
B:-Crown angulation
C:-Molar relationship
D:-Crown inclination
Ans: D
78:-Active components of removable appliance includes all except
A:-Clasps
B:-Bows
C:-Springs
D:-Elastics
Ans: A
79:-Alterations in fluid dynamics in the periodontal ligament leads to tooth moment. This theory is called
A:-Pressure tension theory
B:-Blood flow theory
C:-Bone bending piezoelectric theory
D:-None of the above
Ans: B
80:-Wunderer's modification of activator is mostly used in the treatment of
A:-Class I malocclusion
B:-Class II malocclusion
C:-Class III malocclusion
D:-Open bite
Ans: C
81:-Lower lingual springs in Frankel appliance are used to
A:-To prevent supra-eruption of upper incisors
B:-To prevent supra-eruption of lower incisors
C:-To prevent supra-eruption of upper molars
D:-To prevent supra-eruption of lower molars
Ans: B
82:-Box elastics are used in correcting
A:-Open bite
B:-Cross Bite
C:-Deep bite
D:-None of the above
Ans: A
83:-Headgear deriving anchorage from the parietal region of the cranium is called
A:-Cervical headgear
B:-Occipital headgear
C:-Combination headgear
D:-Vertical pull headgear
Ans: D
84:-In twin block, angulation of inclined plane to the occlusal plane is
A:-70 degrees
B:-80 degrees
C:-90 degrees
D:-35 degrees
Ans: A
85:-Passive components of a fixed appliance include all except
A:-Bands
B:-Brackets
C:-Arch wires
D:-Lock pins
Ans: C
86:-Pellots of Frankel appliance are also called as
A:-Lower lingual springs
B:-Lingual crossover wire
C:-Lower lingual pads
D:-Lip pads
Ans: D
87:-Four basic bends in making wire components of orthodontic appliance includes all except
A:-Obtuse bend
B:-Right angle bend
C:-Acute bend
D:-Small radius bend
Ans: A
88:-Cross bite elastics are
A:-Intramaxillary elastics
B:-Intermaxillary elastics
C:-Box elastics
D:-None of the above
Ans: B
89:-Upper lip pads are present in
A:-FR III
B:-FR II
C:-FR IV
D:-FR V
Ans: A
90:-Selfsupporting canine retractor is also know as
A:-U loop canine retractor
B:-Helical canine retractor
C:-Buccal canine retractor
D:-Palatal canine retractor
Ans: C
91:-Molar distalization can be achieved using
A:-Bite planes
B:-Oral screen
C:-Lip bumper
D:-Catalan's appliance
Ans: C
92:-In bonded Rapid Maxillary Expansion, cast cap splints are made of
A:-Silver-copper alloy
B:-Cobalt-chromium alloy
C:-Polymethyl-methacrylare
D:-Nickel-titanium alloy
Ans: A
93:-Slow expansion is termed as
A:-Surgical expansion
B:-Skeletal expansion
C:-Dento-alveolar expansion
D:-Dental expansion
Ans: C
94:-The anchorage potential of tooth does not depend on
A:-Root form
B:-Crown form
C:-Ankylosed teeth
D:-Inclination of tooth
Ans: B
95:-Force effecting a tooth movement in apical direction is called
A:-Intrusion
B:-Tipping
C:-Translation
D:-Extrusion
Ans: A
96:-Coffin spring is a
A:-Guided spring
B:-Self-supported spring
C:-Compound spring
D:-Helical spring
Ans: B
97:-Seperators are classified as all except
A:-Brass wire seperators
B:-Kesling's spring seperators
C:-Ring seperators
D:-None of the above
Ans: D
98:-Thumb sucking can lead to
A:-Proclination of lower incisors
B:-Retroinclination of upper incisors
C:-Posterior open bite
D:-Retroinclination of lower incisors
Ans: D
99:-Split labial bow is used to correct
A:-Midline diastema
B:-Crowding
C:-Anterior deep bite
D:-Rotations
Ans: A
100:-Graphite is used as a
A:-Filler
B:-Solder
C:-Flux
D:-Antiflux
Ans: D