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​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
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
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
​
  • Dental
  • Dental- Page 1
  • Dental- Page 2
  • Dental- Page 3

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