Year4/Operative dentistry/Prof. Hean Sophal/
Test Your Knowledge in Operative Dentistry
Challenge yourself with our comprehensive quiz designed for Year 4 students specializing in Operative Dentistry. This quiz covers various topics related to amalgam, cavity preparation, and dental caries classification.
Key Features:
- 23 engaging multiple-choice questions
- Test your understanding of dental materials and principles
- Track your progress and improve your knowledge
51. βReaction amalgam phase incorrect:
Phase gamma 1
Phase gamma 2
Phase dispersal
Phase crystallization
52. Reaction amalgam phase correct:
Phase gamma
Phase gamma 1
Phase dispersal
Phase crystallization
53. Treatment for class I by Dr. Black:
Cleaning prophylaxis
Rabber dam use
Application fluorosis
Enameloplasty.
54. Classification technique for class I before tilling material by Dr. Black:
Mental incrustation
Retreatment form
Resistance form
Profondisation form
55. Retention zone for class II cavity by Dr. Black:
On cavo-surface
On gingival wall
On parallel axial wall
On pulpal wall
56. Class III cavity preparation by Dr. Black that no recommendation:
Proximo-lingual
Proximo-liguo-vestibular
Dove tail
Proximo-vestibular
57. Classification dental carie according to the speed:
Carie of enamel
Forward carie
Incipient carie
Chronic carie
58. Classification dental carie according to the severity:
Acute carie
Incipient carie
Chronic carie
Carie of enamel
59. Dentin thin remain for class II preparation large volumen .
β1mm
β2mm
3mm
4mm
60. Approximate gingival wall remains class II preparation:
0.1mm
0.2mm
0.02mm
0.05mm
61. Class II cavity preparation more acceptable for modern dentist:
Proximo-Non occlusal box
Proximo-occluso-distal box.
Proximo-occluso-mesial box.
Proximo-occluso-disto-mesial box.
62. Direction of force for compression on cylindrical schema:
ΑααααααααααΆ
ΑαααααααααααΆ
ΑαααααααΆααα
αΌαααααΆ
Ααααααα»αααααΆαα
α
α»αααααΆα
63. Direction force for tension on cylindrical schema:
Ααααααα»αααααΆ
ΑαααααααΆααα
αΌαααααΆ
ΑααααααααααΆ
Ααααααα»αααααΆαα
α
α»αααααΆα
64. Classification of amalgam based on high copper alloy:
Rang of 2 β 6%
Rang of 2 β 15%
Rang of 6 β 30%
Rang of 6 β 70%
65. Classification of amalgam based on shape of particle:
Zinc-free alloy
Zinc-containing alloy
Binary alloy
Spheroidal
66. Classification of amalgam based on shape of particle:
Regular
Irregular
Binary alloy
Terhary alloy
67. Indication of amalgam restoration:
Class IV preparation
Ease of manipulation
Satisfactory margin adaptation
Good wear resistance
68. Dimensional change should be limited for amalgam:
20microns/cmΒΊ
20microns/cmΒ³
20microns/cmΒ²
20microns/cm
69. Advantage of amalgam:
Does not bond to tooth
Is not strong enough when weakened wall
Self-sealing
Discoloration tooth tissue
70. Limited between space restoration tooth and antagonist tooth:
ΒΌmm normal occlusion
Β½mm normal occlusion
ΒΎmm normal occlusion
1/2 mm normal occlusion
71. Factor affecting amalgam creep:
High copper alloy
Compressive strength
Tension strength
High residual mercury
72. ααΌααααα Setting reaction of amalgam phase gamma:
Sn(7-8) hg3
Ag3 Sn
Ag2 Hg3
Cu3 Sn
73. ααΌααααα Setting reaction of amalgam phase gamma1 :
Sn(7-8) hg3
Ag3 Sn
Ag2 Hg3
Cu3 Sn
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