Year4/Operative dentistry/Prof. Hean Sophal/

A visually appealing illustration of a dental operatory featuring dental tools, an amalgam filling, and a smiling patient, in a clean and modern style.

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

23 Questions6 MinutesCreated by PracticingDentist42

51. Reaction 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 .

1mm

2mm

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:

��ឝ់ស្របគ្នា

��ឝ់ប្រឈមគ្នា

��ឝ់ឝ្របាញ់ចូលគ្នា

��ឝ់ផ្ទុយគ្នានៅចុងសងឝាង

63. Direction force for tension on cylindrical schema:

��ឝ់ផ្ទុយគ្នា

��ឝ់ឝ្របាញ់ចូលគ្នា

��ឝ់ស្របគ្នា

��ឝ់ផ្ទុយគ្នានៅចុងសងឝាង

64. Classification of amalgam based on high copper alloy:

Rang of 2 – 6%

Rang of 2 – 15%

Rang of 6 – 30%

Rang of 6 – 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/cmº

20microns/cm³

20microns/cm²

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:

¼mm normal occlusion

½mm normal occlusion

¾mm normal occlusion

1/2 mm normal occlusion

71. Factor affecting amalgam creep:

High copper alloy

Compressive strength

Tension strength

High residual mercury

72. រូបមន្ឝ Setting reaction of amalgam phase gamma:

Sn(7-8) hg3

Ag3 Sn

Ag2 Hg3

Cu3 Sn