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