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Within An Hour After Cementation Of Cast Gold Onlay Patient Complains Of Shooting Pain Every Time The Teeth Comes Together Most Probable Explanation Is
Excess Acid In Mix | |
Galvanic Current Caused By Gold Onlay Occluding With A Large Restoration | |
Supracocclusion Of Restoration | |
Retained Cement In Gingival Sulcus |
With Indirect Spruing. Which One Of The Following Porosities Can Be Minimised______
Pin Hole Porosity | |
Micro Porosity | |
Back Pressure Porosity | |
Localized Shrinkage Porosity |
Why Gic Is Best Restorative Material In Children______
It Has Less Occlusal Wear | |
Good Marginal Integrity | |
High Strength | |
It Can Bond Enamel & Dentin |
Who Was The First Person To Introduce Cast Inlay Restoration Into Dentistry ?
G.V. Black | |
Buonocore | |
William H Taggart | |
Bowen |
White Gold Alloy Predominantly Is______
Gold Added With Calcium | |
Gold With Silver | |
Gold With Much Of Chromium | |
Gold Added With Palladium |
Which Zone Is The Hottest And Efficient Burning Zone Of The Flame Used For Casting ?
Oxidizing Zone | |
Reducing Zone | |
Combustion Zone | |
None Of The Above |
Which Phase Provides Maximum Strength In Hardened Mercury/Silver Alloy ?
Silver / Mercury Phase | |
Silver / Tin Phase | |
Tin / Mercury Phase | |
Zinc / Mercury Phase |
Which One Of The Following Restorative Materials Is Having Coefficient Of Thermal Expansion Close To That Of Tooth Enamel And Dentin ?
Microfilled Composite Resins | |
Type Ii Glass Ionomer Cement | |
Pure Gold | |
Silver Amalgam |
Which One Of The Following Is Used As Filler In Composite Resins ?
Quartz | |
Silicates | |
Aluminium | |
Zinc Particles |
Which One Of The Following Is The Result Of Applying A Load To A Wire Below Its Modulus Of Elasticity On A Load Deflection Diagram ?
Fracture Of The Wire | |
Spring Back | |
Permanent Deformation | |
Increase In Stiffness |
Which One Of The Following Is Not An Objective Of Trituration ?
Pulverize Pelletes Into Particles To Aid In Attack By Mercury | |
Remove Oxides From Powder Particle Surface | |
Keep The Amount Of Gamma-1 Or Gamma-2 Matrix Crystals To Maximum | |
Achieve A Workable Mass Of Amalgam In Minimum Time |
Which One Of The Following Is Most Elastic ?
A Titanium | |
Chrome-Cobalt-Nickel | |
Nickel-Titanium | |
B Titanium |
Which One Of The Following Increase The Strength And Reduce Viscosity Of Agar Hydrocolloid Impression Material______
Borax | |
Carbonates | |
Water | |
Sulfates |
Which One Of The Following Impression Materials Is Elastic, Sets By A Chemical Reaction And Is Catalyzed By Chloroplatinic Acid______
Polyether | |
Poly Vinyl Siloxane | |
Polysulfide | |
Condensation Silicone |
Which One Of The Following Elements Is Not Added Is Small Amount To Be Used As Grain Refiners ?
Iridium | |
Ruthinium | |
Platinum | |
Indium |
Which One Of The Following Dental Cements Does Not Contain Water As Part Of The Composition Of The Liquid Component ?
Zinc Silicophosphate Cement | |
Zinc Oxide Equgenol Cement | |
Zinc Polycarboxylate Cement | |
Zinc Phosphate Cement |
Which One Of The Following Dental Cement Accelerates The Formation Of Reparative Dentin ?
Zinc Oxide | |
Silica | |
Eugenol | |
Calcium Hydroxide |
Which One Of The Following Categories Of Dental Materials Has The Highest Thermal Conductivity______
Porcelains | |
Gold Alloys | |
Unfilled Acrylic Plastics | |
Zinc Phosphate Cements |
Which Of The Waxes Are Derived From The Lignite______
Montan Wax | |
Paraffin Wax | |
Inlay Wax | |
Microcrystalline Wax |
Which Of The Following Zones Is Used For Melting Alloy During Casting______
Oxidizing Flame | |
Green Flame | |
All Of The Above | |
Reducing Flame |
Which Of The Following Will Produce The Most Rigid Restoration For Framework Of Same Dimension ?
Cobalt-Chrome Alloys | |
Partial Denture Casting Gold In Hardened Condition | |
Palladium Alloys | |
Wrought Alloy |
Which Of The Following Statements About High Copper Silver Alloy Compared To Conventional Alloy Is Not True ?
It Has Poor Tarnish And Corrosion Resistance | |
Its Edge Strength Is Greater | |
It Has Increased Tensile And Compressive Strength | |
Mercury Content In The Final Restoration Is Less |
Which Of The Following Statement Is True Regarding Lathe Cut Low Copper Silver Alloy ?
Has Lower Cree Value | |
Has Tensile Strength Both At 15 Minutes And 7 Days Is Comparable To High Copper, Unicompositional Alloys | |
Achieves High Compressive Strength At 1 Hr. | |
Requires Least Amount Of Mercury |
Which Of The Following Silver Amalgam Alloy Have The Maximum Strength______
Spherical | |
Lathe Cut | |
Admixed | |
Single Composition |
Which Of The Following Show Chemical Bond With Enamel (Calcified Tissues)______
Direct Filling Resins | |
Bis-Gma Resins In Pit And Fissure Sealants | |
Composites | |
Polycarboxylate Cements |