Dental Materials - Impression Materials
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- Answered
- Review
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Question 1 of 120
1. Question
The Zinc oxide-eugenol impression pastes harden by:
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Question 2 of 120
2. Question
4th state of matter is:
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Question 3 of 120
3. Question
All of the following statements about Type II silicon impression material are true EXCEPT:
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Question 4 of 120
4. Question
All of the following statements about an alginate impression are EXCEPT:
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Question 5 of 120
5. Question
All of the following can be used to slow down the setting of Zinc oxide eugenol impression paste EXCEPT:
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Question 6 of 120
6. Question
Type I and Type II zinc oxide impression paste differ with respect to:
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Question 7 of 120
7. Question
Hysteresis in a hydrocolloid gel is:
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Question 8 of 120
8. Question
The term given to the phenomenon of moisture absorption by an alginate impression in:
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Question 9 of 120
9. Question
The base paste of the condensation poly sillicone has a low molecular weight dimethyl siloxane with a terminal-group
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Question 10 of 120
10. Question
The impression with the least dimensional change upon disinfection is:
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Question 11 of 120
11. Question
Best material for duplicating cast is:
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Question 12 of 120
12. Question
Palladium is added to polyvinyl siloxane to:
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Question 13 of 120
13. Question
Syneresis seen in hydrocolloid gel is:
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Question 14 of 120
14. Question
Immediate pouring of impressions is most critical in:
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Question 15 of 120
15. Question
Impression techniques are used for recording
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Question 16 of 120
16. Question
The impression material used to record the prepared areas on abutment teeth is:
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Question 17 of 120
17. Question
Vulcanization refers to the setting of:
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Question 18 of 120
18. Question
Alginate impression material is
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Question 19 of 120
19. Question
Impression plaster is:
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Question 20 of 120
20. Question
Syringe material is:
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Question 21 of 120
21. Question
Setting time of ZOE is best controlled by:
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Question 22 of 120
22. Question
The impression for a diagnostic cast of a partial edentulous mouth should be taken in:
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Question 23 of 120
23. Question
Sol – gel transformation is seen in:
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Question 24 of 120
24. Question
Agar impression materials differ from alginate impression materials in that the former sets by:
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Question 25 of 120
25. Question
The basic constituent of reversible hydrocolloid impression material is:
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Question 26 of 120
26. Question
Which material undergoes hysteresis?
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Question 27 of 120
27. Question
Before pouring an elastic impression it is washed with slurry of water and stone to:
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Question 28 of 120
28. Question
The setting time of irreversible hydrocolloids can be decreased by:
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Question 29 of 120
29. Question
Which material is the most difficult to remove from the patients mouth?
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Question 30 of 120
30. Question
Rubber base impressions are poured immediately as they:
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Question 31 of 120
31. Question
Heavy and light body impression materials are use with:
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Question 32 of 120
32. Question
The most mucostatic impression material is:
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Question 33 of 120
33. Question
Impression compound has which of the following characteristic property?
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Question 34 of 120
34. Question
The best way to remove a hydrocolloid impression from the patient’s mouth is:
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Question 35 of 120
35. Question
Agar syringe material can be used with/as
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Question 36 of 120
36. Question
Palatal secretions affect the setting of all the impression materials except:
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Question 37 of 120
37. Question
Trisodium phosphate added to alginate contributes towards
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Question 38 of 120
38. Question
Lenolin is added is ZOE paste to:
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Question 39 of 120
39. Question
Tear strength for impression material is highest for:
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Question 40 of 120
40. Question
Agar is prepared from
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Question 41 of 120
41. Question
Elastomers are:
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Question 42 of 120
42. Question
Perforated impression tray are used for:
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Question 43 of 120
43. Question
The American dental association (ADA) specification number for non-aqueous elastomeric dental impression material is:
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Question 44 of 120
44. Question
During setting of alginate impression materials
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Question 45 of 120
45. Question
Which of the following impression material is elastic:
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Question 46 of 120
46. Question
K2SO4 in agar-agar is for:
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Question 47 of 120
47. Question
Trisodium phosphate in alginate acts are:
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Question 48 of 120
48. Question
Wash or corrective impression is done by:
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Question 49 of 120
49. Question
Hypersensitivity reactions like contact dermatitis can be caused by:
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Question 50 of 120
50. Question
The plasticizers used in polyether impression material is:
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Question 51 of 120
51. Question
Impression compound base
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Question 52 of 120
52. Question
In reversible hydrocolloid the property by which the transformation from sol to gel and gel to sol is a function of the:
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Question 53 of 120
53. Question
One of the most important advantages of truly elastic impression material would be its capacity for:
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Question 54 of 120
54. Question
Alginates are
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Question 55 of 120
55. Question
Inelastic impression material is:
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Question 56 of 120
56. Question
Syneresis is associated with:
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Question 57 of 120
57. Question
Masterial causing minimum tissue distortion is:
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Question 58 of 120
58. Question
The advantage of ZOE impression paste
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Question 59 of 120
59. Question
Brush heap structure is found in:
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Question 60 of 120
60. Question
Rinsing of the impression is important to:
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Question 61 of 120
61. Question
Gelation temparature of agar is between
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Question 62 of 120
62. Question
Which is best material for RPD impression
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Question 63 of 120
63. Question
Alginate impression material is similar to Agar-agar impression material in the following respect:
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Question 64 of 120
64. Question
Which of the following is not affected by saliva?
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Question 65 of 120
65. Question
Hardening solutions are used with impression made of:
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Question 66 of 120
66. Question
Retarder in Zinc oxide eugenol is:
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Question 67 of 120
67. Question
Elastomers except: Polyether are:
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Question 68 of 120
68. Question
The cross linking agent of polysulphide rubber base impression material is:
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Question 69 of 120
69. Question
Which of the following impression material is rigid?
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Question 70 of 120
70. Question
When making a polysulphide impression for a caste crown, custom trays are usually preferred over stock trays for all of the following reasons except:
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Question 71 of 120
71. Question
Rapid removal of rubber impression with a single firm motion results in:
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Question 72 of 120
72. Question
Name the accelerator used in Zinc oxide eugenol paste
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Question 73 of 120
73. Question
Impression compound is characterized by all of the following except:
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Question 74 of 120
74. Question
The low thermal conductivity of impression compound is overcome by:
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Question 75 of 120
75. Question
Which of the following is not true about elastomeric impression?
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Question 76 of 120
76. Question
Linear contraction of elostomeric impression with passage of time is highest in:
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Question 77 of 120
77. Question
The process of changing the rubber base product or liquid polymer, to a rubber like material is generally known as:
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Question 78 of 120
78. Question
Which of the following is true about Agar hydrocolloid impression material?
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Question 79 of 120
79. Question
Alginates are made dust free by adding:
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Question 80 of 120
80. Question
Which one of the following increase the strength and reduce viscosity of agar hydrocolloid impression material:
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Question 81 of 120
81. Question
The role of magnesium chloride in zinc oxide eugenol impression paste:
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Question 82 of 120
82. Question
The water powder ratio of alginate is:
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Question 83 of 120
83. Question
To make the vinyl Polysiloxane hydrophilic the following is added:
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Question 84 of 120
84. Question
Best impression material to be used for securing impression after crown preparation:
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Question 85 of 120
85. Question
Dimensional stability of hydrocolloid impressions may be achieved by:
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Question 86 of 120
86. Question
Dimension stability of hydrocollids may be achieved by:
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Question 87 of 120
87. Question
Which of the following is correct regarding chemical setting of condensation silicone:
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Question 88 of 120
88. Question
Which of the following is correct glass transition temperature of Impression compound?
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Question 89 of 120
89. Question
Which of the following is used as surface hardener in Impression material?
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Question 90 of 120
90. Question
Rough and irregular surface produced on the impression is because of:
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Question 91 of 120
91. Question
Which of the following best describes the working time of impression material?
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Question 92 of 120
92. Question
Minimum flow of Type-I impression compound at mouth temperature is:
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Question 93 of 120
93. Question
Which of the following is correct arrangement of impression material regarding linear contraction in ascending order?
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Question 94 of 120
94. Question
Polysulfide material is routinely not recommended because of:
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Question 95 of 120
95. Question
Disadvantage of polysulphide as impression material:
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Question 96 of 120
96. Question
Hydrocolloid material, show all except:
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Question 97 of 120
97. Question
Most flexible impression material
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Question 98 of 120
98. Question
Impression material that Do NOT harden by chemical reaction:
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Question 99 of 120
99. Question
A laminate impression technique utilizes:
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Question 100 of 120
100. Question
Putty wash technique
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Question 101 of 120
101. Question
Dimensional stability of elastomeric impression material can be given in descending order as:
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Question 102 of 120
102. Question
What is the minimum thickness of the elastomeric impression material for an accurate impression
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Question 103 of 120
103. Question
Which of the following component acts as an accelerator in ZOE impression paste?
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Question 104 of 120
104. Question
The relative hardness of elastomere is determined using:
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Question 105 of 120
105. Question
By product of condensation reaction between silicone base and alkyl silicate in presence of tin octate
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Question 106 of 120
106. Question
Rough surface of elastomeric impression results from:
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Question 107 of 120
107. Question
Which of the following impression material requires a hardener?
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Question 108 of 120
108. Question
Most rigid elastomer is:
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Question 109 of 120
109. Question
Most mucostatic among the following
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Question 110 of 120
110. Question
Most ideally elastic among the following
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Question 111 of 120
111. Question
The ranking of tear strength from the lowest to highest of all impression materials generally is as follows
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Question 112 of 120
112. Question
Which one of the following impression materials is elastic, sets by a chemical reaction and is catalyzed by chloroplatinic acid:
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Question 113 of 120
113. Question
The impression materials with lowest viscosity is:
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Question 114 of 120
114. Question
Which of the following best describes the working time of elastomeric impression material?
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Question 115 of 120
115. Question
Rough and irregular surface produced on the impression is because of?
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Question 116 of 120
116. Question
Final product in alginate is:
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Question 117 of 120
117. Question
Which of the following impression materials is easy to pour and difficult to remove the stone cast from the impression?
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Question 118 of 120
118. Question
Dustless alginate is produced by:
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Question 119 of 120
119. Question
A technique of combining reversible and irreversible hydrocolloid that could bond to irreversible hydrocolloid is known as:
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Question 120 of 120
120. Question
Two in one stage impression materials include
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