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