1) Montan waxes have the following properties except 😕

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

3) KHN of enamel is 😕

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

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

6) Hand instruments for composites are made of 😕

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

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

9) Nickel sensitivity in the general population is 😕

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

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

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

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

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

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

16) Wrought metal 😕

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

18) Commonly used filler in composite is 😕

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

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

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

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

23) Porcelain denture teeth 😕

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

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

26) Gold with high percentage elongation is best for 😕

27) Impression plaster is a 😕

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

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

30) Which of the following is called periphery wax ?

31) Most common use of Zinc oxide eugenol paste 😕

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

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

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

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

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

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

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

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

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

41) Metal has the following properties except 😕

42) The catalyst used for condensation silicones is 😕

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

44) Pick out the incorrect statement regarding alginate impressions 😕

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

46) Property which distinguishes composites from filled acrylic resins 😕

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

48) All are properties of waxes except 😕

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

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

51) Inorganic phase in a composite matrix 😕

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

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

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

55) The main ingredient of casting waxes is 😕

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

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

58) Commonly used viscosity controller in composites is 😕

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

60) The most commonly used implant type presently is 😕

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

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

63) In dental porcelains metallic oxides provide 😕

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

65) Softening of impressing compound is best accomplished by 😕

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

67) Elgiloy arch wire is 😕

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

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

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

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

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

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

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

75) Stearic acid in impression compound 😕

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

77) Carnauba wax is preferred to candelilla wax as 😕

78) Ideal metal used for electroplating polysulfide impression is 😕

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

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

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

82) The main function of zinc in amalgam is 😕

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

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

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

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

87) In dental plaster the main ingredient is 😕

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

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

90) Chemically cured resin shrinks:?

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

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

93) Spot out incorrect statement regarding zinc in dentistry 😕

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

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

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

97) Resistance of a liquid to motion is called 😕

98) Calcium hydroxide is used for 😕

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

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

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

102) Thermal conductivity is proportional to 😕

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

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

105) Glass ionomer cenment is not recommended for 😕

106) Adhesion in composites is due to 😕

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

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

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

110) Strength of dental porcelain is dependent on 😕

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

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

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

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

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

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

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

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

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

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

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

122) Main disadvantage of denture base soft reliner is 😕

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

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

125) Proportional limit is defined as :

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

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

128) Biting force in the molar region ranges from 😕

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

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

131) Following are the functions of impression compound except 😕

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

133) Conventional dental amalgam alloy contains 😕

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

135) In an alloy oxygen scavenger is 😕

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

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

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

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

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

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

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

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

144) Amalgam is less prone to corrosion 😕

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

146) Nickel in base metal alloys increase its 😕

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

148) Hypersensitivity reactions like contact dermatitis is caused by 😕

149) Crystalline materials have 😕

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

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

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

153) Noble metal alloys are classified according to their 😕

154) Light source in the curing unit is usually 😕

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

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

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

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

159) The byproduct in condensation silicones is 😕

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

161) In alginate impression the final gel is 😕

162) Impression compound is characterized by 😕

163) The maximum warpage of acrylic denture occurs during 😕

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

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

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

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

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

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

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

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

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

173) In UV curing system the activator employed is 😕

174) Alginate impression material deteriorates rapidly at 😕

175) Binder in the phosphate investment is 😕

176) Ideal method firing of porcelain is by using 😕

177) 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 ?

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

179) The desirable quality of porcelain is 😕

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

181) Bis-GMA is a reaction product of 😕

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

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

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

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

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

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

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

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

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

191) Silver has all the following characteristics except 😕

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

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

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

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

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

197) Potato starch is contained in which impression material ?

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

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

200) Gypsum investments should not be heated above 😕

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

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

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

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

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

206) Greening effect of porcelain is due to 😕

207) Most commonly used pit and fissure sealant is 😕

208) When the gold content of gold alloys increases 😕

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

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

211) Commonly used coloring agent in impression plaster is 😕

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

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

214) Clinical significance of smear layer :