Chapter 43 Quiz: Restorative and Esthetic Dental Materials

Questions and Answers

What is the effect of an electrical shock that results when two metals touch?

Viscosity

Chemical reaction

Galvanic (correct)

Contraction and expansion

What type of dental restorative is hard, brittle, and resistant to heat and corrosion?

Ceramic

What does it mean for a material to be cured?

To become hardened or set

What is the term for the ability to bond or attach two items together?

Adhere Signup and view all the answers

What is palladium?

A soft, silvery-white metallic chemical element that resembles platinum Signup and view all the answers

What is the process that brings a tooth or teeth back to their natural appearance?

Restorative Signup and view all the answers

What is a pestle?

An object within the amalgam capsule used for pounding or pulverizing Signup and view all the answers

What is porcelain?

A solid white, translucent ceramic material made by firing pure clay Signup and view all the answers

What does esthetic mean?

An artistically pleasing and beautiful appearance Signup and view all the answers

What is gold in the context of dental materials?

A soft, yellow, corrosion-resistant metal used in the making of indirect restorations Signup and view all the answers

What does viscosity refer to?

The property of a liquid that prevents it from flowing easily Signup and view all the answers

What is amalgam?

A mixture of alloys triturated with mercury Signup and view all the answers

What does auto-cured mean?

How a material hardens or sets through a chemical reaction of two materials Signup and view all the answers

What is microleakage?

A minute area where moisture and contaminants can enter Signup and view all the answers

What is an alloy?

A combination of two or more metals Signup and view all the answers

What is retention in dental terms?

The ability to retain or hold something in place Signup and view all the answers

What does spherical refer to?

Something that is round Signup and view all the answers

What is strain in dental materials?

The distortion or change produced as a result of stress Signup and view all the answers

What does stress mean in the context of dentistry?

The internal reaction or resistance to an externally applied force Signup and view all the answers

What is a filler in composite materials?

An inorganic material that adds strength and other characteristics to composite resins Signup and view all the answers

What is trituration?

A method that is used to mix together or process capsulated dental materials Signup and view all the answers

What organization evaluates new dental materials?

ADA Signup and view all the answers

What is comprehensive stress in dental materials?

Reaction that dental material undergoes when a person is chewing Signup and view all the answers

What happens when a dental material is exposed to extreme temperatures of hot and then cold?

Contraction and expansion Signup and view all the answers

What is an example of galvanic action?

Salt with saliva; touching of metals Signup and view all the answers

How does an auto-cured material harden or set?

Through a chemical reaction of two materials Signup and view all the answers

What is the correct makeup of the alloy powder in amalgam?

Silver, tin, copper, and zinc Signup and view all the answers

Why is dental amalgam not placed in anterior teeth?

Esthetics Signup and view all the answers

What does copper provide to amalgam restorations?

Strength and corrosion resistance Signup and view all the answers

Where are amalgam scraps disposed?

Biohazard bag Signup and view all the answers

What is an amalgamator?

Used to triturate amalgam Signup and view all the answers

What does BIS-GMA refer to?

Term commonly used to refer to dimethacrylate Signup and view all the answers

Which filler type of composite resin has the strongest makeup and has been used most commonly for posterior restorations?

Macrofilled Signup and view all the answers

Which factor can affect curing time of the material when light-curing composite resins?

Type of composite Signup and view all the answers

What is a shade guide used for?

To determine the color of composite resin material for a procedure Signup and view all the answers

What is the final step in finishing a composite resin?

Use a rubber cup and polishing paste Signup and view all the answers

What does IRM stand for?

Intermediate restorative material Signup and view all the answers

What is the temporary restorative material most likely to be selected for a class II cavity preparation?

IRM Signup and view all the answers

What is the material most likely to be selected for provisional coverage?

Acrylic resin Signup and view all the answers

What are three noble metals used in making indirect restorations?

Gold, palladium, and platinum Signup and view all the answers

What type of restoration is made in the dental laboratory?

Indirect restoration Signup and view all the answers

Study Notes

Key Terms in Restorative and Esthetic Dental Materials

Galvanic: Refers to an electrical shock experienced when two metals come into contact.
Ceramic: A durable, brittle dental restorative material, known for its heat and corrosion resistance.
Cured: Describes the process of hardening or setting a dental material.
Adhere: The action of bonding or attaching materials together.
Palladium: A soft, silvery-white metal similar to platinum, often used in dental alloys.
Restorative: The process aimed at restoring teeth to their original appearance.
Pestle: An instrument used within an amalgam capsule for grinding or pulverizing materials.
Porcelain: A white, translucent ceramic produced by firing and glazing pure clay.
Esthetic: Pertaining to the artistic and visually pleasing aspects of dental materials.
Gold: A corrosion-resistant, soft yellow metal used in making indirect dental restorations.
Viscosity: A measure of a liquid's resistance to flow easily.
Amalgam: A mixture of metal alloys blended with mercury for dental use.
Auto-cured: Describes materials that harden through a chemical reaction between two components.
Microleakage: Small gaps that allow moisture and contaminants to enter around dental restorations.
Alloy: A blend of two or more metals, often used in dental applications.
Retention: The ability of a material to hold itself in position.
Spherical: Pertaining to a round shape, often used to describe types of particles in dental materials.
Strain: Distortion arising from stress applied to a material.
Stress: Internal resistance generated within a material in response to external force.
Filler: An inorganic component that enhances strength and other characteristics in composite resins.
Trituration: The process of mixing dental materials contained in capsules.
ADA: The American Dental Association evaluates dental materials for safety, efficacy, and functional resemblance to natural teeth.
Comprehensive stress: The stress dental materials endure when subjected to chewing.
Contraction and expansion: Changes in volume that dental materials experience due to temperature variations.
Amalgam Composition: Silver, tin, copper, and zinc are the primary components of dental amalgam.
Amalgam Placement: Dental amalgam is typically not used for anterior teeth due to esthetic concerns.
Copper: Contributes strength and corrosion resistance to high copper amalgams.
Disposal of Amalgam: Scrap amalgam should be placed in a biohazard bag for safe disposal.
Amalgamator: A device used for trituration of amalgam materials.
BIS-GMA: A term that refers to bisphenol A glycidyl methacrylate, commonly used in composite resins.
Macrofilled Composites: Stronger fillers that are primarily utilized for posterior restorations.
Light-Curing Factors: Several factors, including type of composite, can influence curing times of light-cured resins.
Shade Guide: A tool used to match and determine the color of composite resin for dental procedures.
Final Finishing Step: Involves using a rubber cup and polishing paste for composite resin finishes.
IRM (Intermediate Restorative Material): Temporary material typically chosen for class II cavity restorations.
Acrylic Resin: The preferred material for provisional dental coverage.
Noble Metals: Gold, palladium, and platinum are categorized as noble metals, commonly used for indirect restorations.
Indirect Restoration: Refers to dental restorations fabricated in a laboratory setting rather than within the mouth.

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Restorative and Esthetic Dental Materials Chapter 43