C:-At least 4 mm below the gingival margin
D:-At least 7 mm below the gingival margin
Correct Answer:- Option-C
Question49:-Functional cusp bevel is given for
A:-Marginal integrity
B:-Structural durability
C:-Retention and resistance form
D:-To improve the geometry of tooth surface
Correct Answer:- Option-B
Question50:-The minimum gap between true end of casting ring and wax pattern should be
A 1/4 inch

Correct Answer:- Option-A
Question51:-Polysulfide material is routinely not used because of
A:-Unpleasant odor and taste
B:-Low accuracy
C:-More permanent deformation
D:-Highest curing shrinkage
Correct Answer:- Option-D
Question52:-Most dimensionally accurate lastomer is
A:-Polyether
-Polysulfide
C:-Addition silicone
D:-Condensation silicone
Correct Answer:- Option-C
Question53:-The opacity in ceramics is achieved by adding
A:-Boric oxide
-Copper oxide
C:-Silica
D:-Titanium oxide
Correct Answer:- Option-D
Question54:-The component of inlay wax that modifies the toughness and carving characteristics of the wax is
‏10ھ‎
‎-Gumdammar
‎C:-Carnauba
‎D:-Ceresin
‎Correct Answer:- Option-D
Question55:-The first layer of porcelain applied onto metal in Porcelain fused to metal crowns would be
A:-Opaque
B:-Body
C:-Incisal
D:-Dentin
Correct Answer:- Option-A
Question56:-The surface discoloration on a metal or alteration of the surface finish is known as
A:-Tarnish
B:-Corrosion
C:-Passivation
D:-Stabilisation
Correct Answer:- Option-A
Question57:-The primary stress bearing area in mandibular arch is
A:-Crest of the alveolar ridge
-Retromolar pad
C:-Buccal shelf area
D:-Pterygomandibular raphae
Correct Answer:- Option-C
Question58:-Retention in maxillary complete denture is provided by
A:-Maxillary tuberosity