1) Bis-GMA is a reaction product of 😕

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

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

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

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

6) Hypersensitivity reactions like contact dermatitis is caused by 😕

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

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

9) In alginate impression the final gel is 😕

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

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

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

13) KHN of enamel is 😕

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

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

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

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

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

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

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

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

22) The fluoride release from glass ionomer cement is 😕

23) Softening of impressing compound is best accomplished by 😕

24) Strength of dental porcelain is dependent on 😕

25) Wrought metal 😕

26) Elgiloy arch wire is 😕

27) Carnauba wax is preferred to candelilla wax as 😕

28) Nickel sensitivity in the general population is 😕

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

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

31) Potato starch is contained in which impression material ?

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

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

34) The maximum warpage of acrylic denture occurs during 😕

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

36) Thermal conductivity is proportional to 😕

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

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

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

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

41) Porcelain denture teeth 😕

42) Commonly used filler in composite is 😕

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

44) Conventional dental amalgam alloy contains 😕

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

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

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

48) Inorganic phase in a composite matrix 😕

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

50) Gold with high percentage elongation is best for 😕

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

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

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

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

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

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

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

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

59) Following are the functions of impression compound except 😕

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

61) Crystalline materials have 😕

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

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

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

65) Ideal method firing of porcelain is by using 😕

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

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

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

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

70) Montan waxes have the following properties except 😕

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

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

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

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

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

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

77) Chemically cured resin shrinks:?

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

79) Main disadvantage of denture base soft reliner is 😕

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

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

82) Most common use of Zinc oxide eugenol paste 😕

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

84) The byproduct in condensation silicones is 😕

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

86) Amalgam is less prone to corrosion 😕

87) When the gold content of gold alloys increases 😕

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

89) Greening effect of porcelain is due to 😕

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

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

92) Silver has all the following characteristics except 😕

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

94) Light source in the curing unit is usually 😕

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

96) The catalyst used for condensation silicones is 😕

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

98) The main ingredient of casting waxes is 😕

99) Most commonly used pit and fissure sealant is 😕

100) Calcium hydroxide is used for 😕

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

102) Which of the following is called periphery wax ?

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

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

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

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

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

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

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

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

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

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

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

114) Ideal metal used for electroplating polysulfide impression is 😕

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

116) Binder in the phosphate investment is 😕

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

118) In dental porcelains metallic oxides provide 😕

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

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

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

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

123) Biting force in the molar region ranges from 😕

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

125) Impression plaster is a 😕

126) Stearic acid in impression compound 😕

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

128) The most commonly used implant type presently is 😕

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

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

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

132) Proportional limit is defined as :

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

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

135) Metal has the following properties except 😕

136) Nickel in base metal alloys increase its 😕

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

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

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

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

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

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

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

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

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

146) Hand instruments for composites are made of 😕

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

148) Pick out the incorrect statement regarding alginate impressions 😕

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

150) Clinical significance of smear layer :

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

152) In UV curing system the activator employed is 😕

153) 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 ?

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

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

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

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

158) In dental plaster the main ingredient is 😕

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

178) Resistance of a liquid to motion is called 😕

179) In an alloy oxygen scavenger is 😕

180) The main function of zinc in amalgam is 😕

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

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

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

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

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

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

187) Impression compound is characterized by 😕

188) Glass ionomer cenment is not recommended for 😕

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

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

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

192) Alginate impression material deteriorates rapidly at 😕

193) Commonly used coloring agent in impression plaster is 😕

194) Property which distinguishes composites from filled acrylic resins 😕

195) All are properties of waxes except 😕

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

197) The desirable quality of porcelain is 😕

198) Adhesion in composites is due to 😕

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

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

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

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

203) Commonly used viscosity controller in composites is 😕

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

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

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

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

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

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

210) Noble metal alloys are classified according to their 😕

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

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

213) Spot out incorrect statement regarding zinc in dentistry 😕

214) Gypsum investments should not be heated above 😕