1) Softening of impressing compound is best accomplished by 😕

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

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

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

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

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

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

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

9) Commonly used viscosity controller in composites is 😕

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

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

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

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

14) The impression material which is routinely used in auto mixing devicee system is 😕

15) Thermal conductivity is proportional to 😕

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

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

18) In an alloy oxygen scavenger is 😕

19) All are properties of waxes except 😕

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

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

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

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

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

25) Porcelain denture teeth 😕

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

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

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

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

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

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

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

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

34) In alginate impression the final gel is 😕

35) The catalyst used for condensation silicones is 😕

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

37) The maximum warpage of acrylic denture occurs during 😕

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

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

40) Carnauba wax is preferred to candelilla wax as 😕

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

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

43) Commonly used coloring agent in impression plaster is 😕

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

45) Potato starch is contained in which impression material ?

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

47) In dental plaster the main ingredient is 😕

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

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

50) Stiffness of the material with passage of time is maximum in 😕

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

52) Bis-GMA is a reaction product of 😕

53) The fluoride release from glass ionomer cement is 😕

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

55) Most common use of Zinc oxide eugenol paste 😕

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

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

58) Hand instruments for composites are made of 😕

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

60) Biting force in the molar region ranges from 😕

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

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

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

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

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

66) Binder in the phosphate investment is 😕

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

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

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

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

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

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

73) The energy absorbed by a material when it is stressed to its proportional limit is 😕

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

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

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

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

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

79) Elgiloy arch wire is 😕

80) In dental porcelains metallic oxides provide 😕

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

82) 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 ?

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

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

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

86) Stearic acid in impression compound 😕

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

88) Clinical significance of smear layer :

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

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

91) Nickel in base metal alloys increase its 😕

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

93) Calcium hydroxide is used for 😕

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

95) Hypersensitivity reactions like contact dermatitis is caused by 😕

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

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

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

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

100) Chemically cured resin shrinks:?

101) Pick out the incorrect statement regarding alginate impressions 😕

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

103) Adhesion in composites is due to 😕

104) Gypsum investments should not be heated above 😕

105) In UV curing system the activator employed is 😕

106) Property which distinguishes composites from filled acrylic resins 😕

107) KHN of enamel is 😕

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

109) The main ingredient of casting waxes is 😕

110) Which of the following is called periphery wax ?

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

112) Strength of dental porcelain is dependent on 😕

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

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

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

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

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

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

119) Spot out incorrect statement regarding zinc in dentistry 😕

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

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

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

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

124) Commonly used filler in composite is 😕

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

126) The desirable quality of porcelain is 😕

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

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

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

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

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

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

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

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

135) The main function of zinc in amalgam is 😕

136) Metal has the following properties except 😕

137) Montan waxes have the following properties except 😕

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

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

140) When the gold content of gold alloys increases 😕

141) Main disadvantage of denture base soft reliner is 😕

142) Most commonly used pit and fissure sealant is 😕

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

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

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

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

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

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

149) Following are the functions of impression compound except 😕

150) Wrought metal 😕

151) Noble metal alloys are classified according to their 😕

152) Inorganic phase in a composite matrix 😕

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

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

155) Conventional dental amalgam alloy contains 😕

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

157) Alginate impression material deteriorates rapidly at 😕

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

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

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

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

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

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

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

165) Impression compound is characterized by 😕

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

167) Resistance of a liquid to motion is called 😕

168) Amalgam is less prone to corrosion 😕

169) The byproduct in condensation silicones is 😕

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

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

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

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

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

175) Glass ionomer cenment is not recommended for 😕

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

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

178) Crystalline materials have 😕

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

180) Impression plaster is a 😕

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

182) Thickness of the gel between the tray and tissue for either agar or alginate should always be at least 😕

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

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

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

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

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

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

189) Silver has all the following characteristics except 😕

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

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

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

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

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

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

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

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

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

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

200) Gold with high percentage elongation is best for 😕

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

202) Ideal method firing of porcelain is by using 😕

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

204) Ideal metal used for electroplating polysulfide impression is 😕

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

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

207) Light source in the curing unit is usually 😕

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

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

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

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

212) Proportional limit is defined as :

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

214) The most commonly used implant type presently is 😕