AIPGE 09 MDS Conservative Dentistry

Conservative Dentistry


150.Difference in tooth preparion for non carious Class V amalgam and composites
a) Depth of the cavity
b) Mesial and distal walls of the cavity
c) Placement of retentive grooves
d) Cavosurface margins
Ans: d) Cavosurface margins

151. To increase the efficiency of tungsten carbide bur
a) Should run only after touching the tooth
b) Run at high speed before touching the tooth
c) Run at low speed before touching the tooth
d) Run before entering the oral cavity
Ans: c) Run at low speed before touching the tooth

152. A mand.molar is restored with a gold inlay. Severe shooting pain is experienced when teeth come in contact. The cause is
a) Supraocclusion
b) Allergic reaction
c) Excess cement
d) Galvanism due to opposite amalgam restoration
Ans: d)Galvanism due to opposite amalgam restoration

153. Most imp bevel for gold inlay restoration is
a) Occlusal
b) Gingival
c) Axiopuplal
d) Axiofacial
Ans:

154. When pins are used in amalgam, strength of amalgam
a) Increases
b) Decreases
c) Same
d) ….
Ans: b)Decreases

155. Action of primer
a) Removal of smear layer
b) Increases surface free energy of dentin
c) Forms thin layer between collagen and resin
d) Bonds with composite
Ans:

156. Which is a wrong technique of placement of rubberdam
a) Place the clamp on tooth and insert the rubber dam
b) Place the dam over the clamp and then on tooth
c) Place the dam over the clamp and frame outside the oral cavity and then on tooth using a holder under the dam
d) Put holder over the dam
Ans:

157. Which is most difficult to diagnose
a) Necrosed pulp
b) Internal resorption
c) Chronic pulpitis
d) Acute apical abscess
Ans:

158. tev dek sutures used in endodontic microsurgery are removed in
a) 24-72 hrs
b) 72-96 hrs
c) 7 days
d)10 days
Ans:

159. Irreversible colonization of bacteria occurs in hw much time after enamel is exposed to bacteria?
a) 24 hrs
b) 1-2 hrs
c) 3-4 hrs
d) Immediately
Ans:

160. What lines become prominent after carious process?
a) Hunter schreger bands
b) Incremental lines of retzius
c) Incremental lines of pickerill
d) Incremental lines of von ebner
Ans: Incremental lines of retzius

161. Which is the best material for treatment of non-carious Class V cavities in unstable acid erosion cases?
a) GIC
b) RM-GIC
c) Compomer
d) Composite
Ans: d) Composite

162. Polymerization shrinkage of composite causes compression stress of
a) 1 mpa
b) 15 mpa
c) 5 mpa
d) 30 mpa
Ans:

163. In a tooth with gingival recession undergoing RCT, the gp cone is sealed at
a) Level of anatomic crown junction
b) 1 mm below gingival crest
c) 1mm below the opening of the canal
d) 1mm above the opening of the canal
Ans:

164. While applying temporary restoration to a tooth during a procedure, the thickness of temporary should be
a) 1mm
b) 2mm
c) 3mm
d) 4mm
Ans:

165. During application of rubber dam, following can be used as a lubricant except
a) Vaseline
b) Soapy water
c) Shaving cream
d) …
Ans: a) Vaselin

166. Root surface caries is caused by
a) Lactobacillus
b) Streptococcus viridans
c) Actinimyces
d) Streptococcus mutans
Ans: c) Actinomyces

167. Root surface caries is caused by(repeated)
a) Lactobacillus
b) Streptococcus viridans
c) Actinimyces
d) Streptococcus mutans
Ans: c) Actinomyces

168. On preparing the root canal with a protaper F2 file, 1mm of the GP cone is cut so as to fit the canal with friction.The diameter of the apical preparation is
a) 0.29mm
b) 0.30mm
c) 0.31mm
d) 0.33mm
Ans:

169. Before restoring a tooth with composite, the area is etched. Accidental contamination occurs with saliva.Then
a) The area is reetched before restoration
b) The area is air dried using an air spray and continue with restoring
c) Wipe the saliva with cotton and continue to restore
d) The area washed with waterspray airdried and reetched
Ans: d)The area washed with waterspray airdried and retched

170. Restorative material of choice for classV abfraction in anterior tooth
a) Microfilled composite
b) GIC
c) RMGIC
d) Compomer
Ans: a) Microfilled composite

171. Proximal caries in a tooth starts
a) Above the contact point
b) Gingival to the contact point and gingiva
c) Gingival to the contact point and occusal to the gingival crest
d) At the contact point
Ans: c) Gingival to the contact point and occusal to the gingival crest

172. On radiographic examination of a deep carious tooth,pulp appears to be nearly exposed.what would be the line of treatment
a)consider the tooth to be exposed and carry out RCT
b)place a sedative dressing and restore with amalgam
c)place a sedative dressing and plan for a pulpotomy procedure in the next appointment
d) ….
Ans: c)place a sedative dressing and plan for a pulpotomy procedure in the next appointment

173. The thickness of kalzynol when its used as a temporary restoration in a rootcanal treated tooth
a) 1mm
b) 2mm
c) 3mm
d) 4mm
Ans:

174. In the slide preparation of a normal tooth,the radiolucent area occupied by
a) Normal pulp
b) Internal resorption
c) Inflammed pulp
d) Necrosed pulp
Ans: a) Normal pulp

175. Application frequency of APF in a caries prone child
a) Twice a year
b) Four times a year
c) Once a year
d) …
Ans: a) Twice a year

176. A porcelain inlay with a facial wall is to be prepared.The cavity walls
a) Should converge facially
b) The depth of the cavity is increased more than that for an amalgam restoration
c) The walls are placed parallel to each other
d) …
Ans: