1) The product that is formed on the surface of the amalgam restoration and frequently result in discoloration is 😕

2) The physical properties most desirable in set amalgam are which of the following ?

3) Which of the following sentences describes the construction of removable partial dentures ?

4) Compared to lathe-cut alloy, spherical dental amalgam alloys 😕

5) Dental personnel can do which one of the following to limit their exposure to mercury ?

6) For proper wetting, contact angle should be ideally 😕

7) The main resin constituent of polishable composite resin is 😕

8) The chemistry behind the condensation of the amalgam is to 😕

9) Which one of the following phases in dental amalgam restoration has the best mechanical properties ?

10) Which of the following occurs when dental amalgam is overmixed ?

11) Hand instruments for composites are made of 😕

12) Which of the following statements about curing of composites are true ?

13) Which of the following base is contraindicated for composites ?

14) The main use of zinc oxide eugenol cement is 😕

15) The byproduct in condensation silicones is 😕

16) Gold casting alloys are classified as type I, II, III or IV among these, having highest hardness is 😕

17) Which of the following metals currently are used in dental alloys ?

18) Commonly used coloring agent in impression plaster is 😕

19) The maximum warpage of acrylic denture occurs during 😕

20) Porosity in denture base resins can be due to 😕

21) Porcelain denture teeth 😕

22) Proportional limit is defined as :

23) In dental porcelains metallic oxides provide 😕

24) A portion of a posterior tooth that is subject to high biting forces would likely be restored with which of the following ?

25) Zinc oxide eugenal impression should be removed from oral cavity :

26) KHN of enamel is 😕

27) Which of the following office conditions minimize the health hazard from spilled mercury ?

28) Which of the following uses a hardened steel ball indenting tool ?

29) In a porcelain fused to metal restoration, the porcelain is-bonded to metal by 😕

30) Property which distinguishes composites from filled acrylic resins 😕

31) Which of the following is used to alter contour of impression trays ?

32) Crystal structures of metals are all the following except 😕

33) Crystalline materials have 😕

34) Of the four types of gold casting alloys, the most commonly used for crowns and bridges is 😕

35) An anterior fixed partial denture could have facings constructed of which of the following materials ?

36) Wrought metal 😕

37) In dental plaster the main ingredient is 😕

38) Which of the following initiator-accelerator systems is needed for a light-activated composite?

39) Nickel in base metal alloys increase its 😕

40) Clinical significance of smear layer :

41) Which of these statements are correct in terms of preparing a correctly triturated mass of amalgam ?

42) Ideal method firing of porcelain is by using 😕

43) Which one of the following is not true about high-copper dental amalgam restorations ?

44) Following are the functions of impression compound except 😕

45) Porcelain-bonded to metal is stronger when fired 😕

46) Oil of clove is sometimes used in preference to eugenal in ZOE paste because :

47) The appropriate proportion of polymer to monomer component of dental resin by volume is generally 😕

48) In an alloy oxygen scavenger is 😕

49) Modifiers are added to plaster of Paris mainly to 😕

50) Strength of dental porcelain is dependent on 😕

51) The main function of zinc in amalgam is 😕

52) The main ingredient of casting waxes is 😕

53) Which of the following elastomers is suited for multiple cast pouring 😕

54) Ideally, the set amalgam should do which of the following ?

55) Most common use of Zinc oxide eugenol paste 😕

56) Light source in the curing unit is usually 😕

57) Which of the following phases in dental amalgam restoration is most prone to electrochemical properties ?

58) Impression compound is characterized by 😕

59) The physical property measured in terms of the deformation of the structure per until dimensions is ?

60) If the light cure resin is curd in increments, it helps in 😕

61) Once amalgamation has occurred, which of the following is true of mercury ?

62) Wet porcelain is condensed properly before firing to enhance all the properties except : ?

63) A direct restorative material used frequently to restore a portion of a posterior tooth that is subject to large biting forces would possess which of the following properties ?

64) All are properties of waxes except 😕

65) Metal has the following properties except 😕

66) The most effective cement in stimulating tertiary dentin is 😕

67) Which of the following statements about compomers are true ?

68) Which of the following sentences describes the construction of removable partial dentures ?

69) Setting time of alginate can be better controlled by 😕

70) Materials having coefficient of thermal expansion close to the tooth structure 😕

71) Greater ratio fo zinc oxide to eugenol will have the following effect on setting time 😕

72) Which of the following statements about adhesion of composite restorations to tooth structure are true ?

73) Contamination of zinc-containing amalgam by moisture during triturating or condensation :

74) Which one of the following is not a criterion for a failed high-copper dental amalgam restorations ?

75) In the cavities which are more than 2mm deep a light-cured restoration is 😕

76) Which of the following is a measure of resistance to fracture ?:

77) The noble or base metal alloys used for PFM should have the following requisite :

78) Excess composite from the labial surfaces can be removed by using 😕

79) Which of the composites with the following fillers may be radiopaque ?

80) Which of the following materials are used for dental implants ?

81) The fluoride release from glass ionomer cement is 😕

82) A full crown on a maxillary anterior tooth may be restored with which of the following restorative materials ?

83) Carnauba wax is preferred to candelilla wax as 😕

84) The main advantage of composites compared to silicates cement is 😕

85) A potentially toxic element in base metal alloys is 😕

86) The most accurate polysulfide impressions are made by using a custom acrylic tray because 😕

87) Which of the following is the best choice of restorative material to achieve moderate to high strength, fluorite release, and esthetics ?

88) The cavity for a GIC restoration is preconditioned with 😕

89) Which of the following phases in dental amalgam restoration has the best mechanical properties ?

90) Acrylic resins are used in which of the following ?

91) The following statements about dental porcelains are true except 😕

92) The most commonly employed alloy combination for use in implants is 😕

93) In UV curing system the activator employed is 😕

94) The reason zinc oxide eugenol cement is used as a temporary restoration 😕

95) One of the disadvantages of using quartz as filler in restorative resin is 😕

96) Which of the following composite is recommended for non stress bearing anterior restoration ?

97) A cavity varnish used for lining the preparation for a dental amalgam restoration will :

98) Distortion on removal from undercuts in addition silicones is very less due to 😕

99) Which of the following represents the maximum safe concentration of mercury vapor in the breathing zone for a 40-hour workweek ?

100) Condensation of porcelain is done by all the methods except 😕

101) Thermal conductivity is proportional to 😕

102) Hypersensitivity reactions like contact dermatitis is caused by 😕

103) The common characteristic for pit and fissure sealant composite resins, acrylic appliances and elastomeric impression materials is :

104) In alginate impression the final gel is 😕

105) Which of the following polymer systems are used for the organic matrix in composites ?

106) Cavity varnish should not be applied when the following is used as a filling material 😕

107) Which of the following waxes used to align of castings before soldering ?

108) Gold with high percentage elongation is best for 😕

109) Strain that occurs when the material is stressed to its proportional limit is called 😕

110) In visible light-cured composites photo initiator molecule is 😕

111) Which of the following mixing methods permits the escape of dental amalgam mercury vapor ?

112) The primary difference between low- and high-copper amalgams is which of the following ?

113) The strain at which the plastic strain develops may be represented by 😕

114) Sulfur contamination from natural latex gloves inhibits the setting of 😕

115) Calcium hydroxide is used for 😕

116) Commonly used viscosity controller in composites is 😕

117) The reason for hydroxyapatite coating on implant biomaterials is 😕

118) Main disadvantage of denture base soft reliner is 😕

119) The tendency of stainless steel to break under repeated condition of cyclic stressing below the ultimate strength is 😕

120) The cracks formed on the ceramic during cooling because 😕

121) Proconditioning before GIC restoration is done in order to 😕

122) Silver in the set amalgam alloy tends to have the following effect 😕

123) The catalyst used for condensation silicones is 😕

124) Which of the following statements about laboratory composites are true ?

125) Dental porcelains are manufactured by a process termed as 😕

126) Binder in the phosphate investment is 😕

127) Oxalates, carbonates, potassium, trisodium phosphates are added to alginate as 😕

128) Minimum light exposure time for composite resins should be 😕

129) The type of stress to which dental amalgam is more resistant to 😕

130) Chemically cured resin shrinks:?

131) The temperature at which a solid changes to liquid is known as its 😕

132) Which of the following components acts as a refractory material in porcelain ?

133) Glass ionomer cenment is not recommended for 😕

134) Passiveness of chrome cobalt alloys is due to formation of 😕

135) The restorative material used to restore a small portion of an anterior tooth should have which of the following properties ?

136) Commonly used filler in composite is 😕

137) Color stability of cold-cured resins is inferior to that of heat cured resins due to 😕

138) Stearic acid in impression compound 😕

139) Which of these statements apply to the filler particles of composites ?

140) A small portion of an anterior tooth would most likely be restored with which of the following ?

141) When a mechanical device is used for mixing addition silicones 😕

142) Which of the following properties would be of least importance, when selecting an impression material ?

143) Which one of the following phases in dental amalgam restoration is most prone to electrochemical corrosion ?

144) The constituent that acts as a binder in the investment is 😕

145) Which of the following statements apply to the packable composites ?

146) Resistance of a liquid to motion is called 😕

147) Montan waxes have the following properties except 😕

148) Spot out incorrect statement regarding zinc in dentistry 😕

149) Which of the following is a measure of resistance to fracture ?

150) Softening of impressing compound is best accomplished by 😕

151) Gypsum investments should not be heated above 😕

152) Nickel sensitivity in the general population is 😕

153) Which of the following statements is incorrect regarding hydroxyapatite as an implant material ?

154) The desirable quality of porcelain is 😕

155) All of the following are properties of Co-Cr-Ni wires except 😕

156) Which one of the following mixing methods permits the escape of dental amalgam mercury vapor ?

157) One of the following statements which one is incorrect regarding polyether :

158) Cobalt-chromium alloy is mostly used for the construction of 😕

159) Elgiloy arch wire is 😕

160) Hydrocolloid impression should be removed from the mouth with a sharp jerk because 😕

161) An anterior fixed partial denture could have facings constructed of which of the following materials ?

162) Inorganic phase in a composite matrix 😕

163) Main disadvantage of laminate technique of making impression is : ?

164) Bis-GMA is a reaction product of 😕

165) The light-cured restorative resins have advantages over chemically activated restorative resins as 😕

166) Pick out the incorrect statement regarding alginate impressions 😕

167) Potato starch is contained in which impression material ?

168) Biting force in the molar region ranges from 😕

169) In a porcelain fused to metal restoration, when the coefficient of thermal expansion of metal and porcelain are different 😕

170) Most commonly used pit and fissure sealant is 😕

171) Alginate impression material deteriorates rapidly at 😕

172) When the gold content of gold alloys increases 😕

173) Which statements are true for bonding of amalgam to tooth structure ?

174) Which of the following properties of calcium hydroxide cement help in the formation of reparative dentin ?

175) Which of the following material has a high coefficient of thermal expansion ?

176) For luting purpose, the film thickness should be 😕

177) The light from the visible light curing unit can cause 😕

178) Regarding Knoop hardness number, which of the following material is closest to that of dentine (KHN 65) ?

179) The gelation temperature of agar hydrocolloid impression material should be 😕

180) Conventional dental amalgam alloy contains 😕

181) For each property, list the amalgam type (irregular low-copper, admixed high-copper, and spherical high-copper ) that has the highest value?.

182) Amalgam is less prone to corrosion 😕

183) Which one of the following office conditions minimize the health hazard from spilled mercury ?

184) A glaze is placed over the finished composite restoration to 😕

185) Ideal metal used for electroplating polysulfide impression is 😕

186) Side effects and complications resulting from treatment by a physician or dentist is 😕

187) Which of the following composites give rough surfaced finish ?

188) The most commonly used implant type presently is 😕

189) The function of gum dammar in inlay wax is 😕

190) Noble metal alloys are classified according to their 😕

191) Which has the highest viscoelastic property and requires more time to recover from deformation ?

192) In deep caities, the resin which remains unpolymerized can cause 😕

193) A measure of ductility of a material is referred to as 😕

194) Which of the following is recommended as an adhesive to trays with polysulfides ?

195) Dispensing composite resins using a syringe is advantageous because it 😕

196) The purpose of burnishing the amalgam after condensation is to 😕

197) Higher mercury left in an amalgam leads to which of the following ?

198) Which of the following is called periphery wax ?

199) One of the following statements which one is incorrect regarding addition silicones 😕

200) The temperature at which a solid changes into liquid is called 😕

201) The greatest amount of dimensional change after setting is exhibited by 😕

202) Which of the following waxes is obtained from distillation of petroleum ?

203) Adhesion in composites is due to 😕

204) Minimal thickness of base for adequate thermal insulation is 😕

205) Impression plaster is a 😕

206) Working time of denture resin should be at least 😕

207) Setting of plaster of Paris is a result of 😕

208) Greening effect of porcelain is due to 😕

209) Which of the following properties are higher for microhybrid composites than for microfilled composites ?

210) Full denture bases are usually made from which of the following materials ?

211) Polyether is different from other elastomers in the following aspects 😕

212) Silver has all the following characteristics except 😕

213) Which one of the following represents the maximum safe concentration of mercury vapor in the breathing zone for a 40-hour work week ?

214) Which of the following statements is true regarding zinc phosphate cement ?