Dental Amalgam Quiz

<p>Amalgam has a silvery-grey color that stands out in the mouth. (D)</p> Signup and view all the answers

<p>Amalgam formulations that conform to the pre-1986 ISO standard. (C)</p> Signup and view all the answers

<p>The crucial role of the silver/tin intermetallic compound in strength and durability was realized. (C)</p> Signup and view all the answers

<p>The standard focuses on maximizing the presence of the silver/tin intermetallic compound (Ag3Sn). (D)</p> Signup and view all the answers

<p>The intermetallic compound Ag3Sn formed during amalgamation. (A)</p> Signup and view all the answers

<p>Encapsulated, preproportioned materials (D)</p> Signup and view all the answers

<p>Potential damage to teeth (D)</p> Signup and view all the answers

<p>To accommodate the size and shape of the cavity (A)</p> Signup and view all the answers

<p>To ensure proper setting of the amalgam (C)</p> Signup and view all the answers

<p>To separate the mercury and alloy until ready for trituration (A)</p> Signup and view all the answers

<p>It may not pack the amalgam well into the box walls. (B)</p> Signup and view all the answers

<p>They can cause excessive heat generation. (D)</p> Signup and view all the answers

<p>Mechanical trituration is more prevalent in both developed and developing countries. (C)</p> Signup and view all the answers

<p>To support the amalgam during condensation (B)</p> Signup and view all the answers

<p>It can lead to a marginal lip of unsupported enamel (D)</p> Signup and view all the answers

<p>Maintaining the contact relationship with adjacent teeth (D)</p> Signup and view all the answers

<p>By tightly securing the matrix to prevent movement (C)</p> Signup and view all the answers

<p>It may fracture (C)</p> Signup and view all the answers

<p>Stainless steel tape (A)</p> Signup and view all the answers

<p>Round-tipped cutting instruments (A)</p> Signup and view all the answers

<p>Any unsupported enamel margins (C)</p> Signup and view all the answers

<p>Lower creep values (A)</p> Signup and view all the answers

<p>Cu–Sn phase (A)</p> Signup and view all the answers

<p>It accelerates the corrosion process (D)</p> Signup and view all the answers

<p>By polishing the surfaces of restorations (B)</p> Signup and view all the answers

<p>Corrosion involves a loss of integrity of the alloy, whereas tarnishing does not (C)</p> Signup and view all the answers

<p>Indium (A)</p> Signup and view all the answers

<p>Formation of a surface coating (C)</p> Signup and view all the answers

<p>They are typically unchanged (C)</p> Signup and view all the answers

<p>The amalgam will fracture rapidly. (D)</p> Signup and view all the answers

<p>Rubbing the surface with cotton wool. (D)</p> Signup and view all the answers

<p>The alloy particles may roll over each other. (D)</p> Signup and view all the answers

<p>Spherical amalgams. (B)</p> Signup and view all the answers

<p>It should be removed. (B)</p> Signup and view all the answers

<p>Complete condensation has been achieved. (A)</p> Signup and view all the answers

<p>More energy generally correlates with higher quality. (C)</p> Signup and view all the answers

<p>It improves bonding of increments. (A)</p> Signup and view all the answers

<p>To maintain adaptation of the matrix and separate the teeth slightly (D)</p> Signup and view all the answers

<p>Trituration (C)</p> Signup and view all the answers

<p>It measures exact amounts for reliable mixtures (C)</p> Signup and view all the answers

<p>Inaccurate proportions due to packing of particles (A)</p> Signup and view all the answers

<p>It can influence the strength and integrity of the restoration (A)</p> Signup and view all the answers

<p>Compromises the strength and durability of the restoration (B)</p> Signup and view all the answers

<p>Carving (D)</p> Signup and view all the answers

<p>Maintains the matrix adaptation and slightly separates the teeth (D)</p> Signup and view all the answers

A mixture of mercury and a powdered silver-tin alloy used for dental restorations.

The chemical reaction between mercury and the silver-tin alloy that forms solid dental amalgam.

Amalgam that meets the pre-1986 compositional standards for dental use.

The silver-tin intermetallic compound Ag3Sn formed during the amalgamation reaction.

The management of characteristics like corrosion resistance and setting time in dental amalgam.

The silver-grey color of dental amalgam limits its use in visible areas of the mouth.

Specified amounts of materials in amalgam to ensure proper performance and safety.

A material used to restore the function and integrity of missing tooth structure.

Materials used as adhesive between tooth structure and restoration.

A band applied to a tooth to provide a surface for condensing amalgam.

The edge of the gumline around a tooth.

The process of placing amalgam material into a cavity.

Rebuilding a tooth's side that contacts adjacent teeth.

A ledge that can form if enamel is not properly trimmed.

The process of polishing the matrix outward to achieve contact.

Material used to hold a matrix in place during restoration.

The gradual deformation of materials under constant stress over time, particularly in dental amalgams.

Alloys that have a higher concentration of copper, which can influence their mechanical properties.

A phase in dental amalgams implicated in causing high creep values and increased porosity.

The gradual destruction of materials through chemical reactions with their environment, particularly in metals.

Corrosion that occurs due to differences in ion concentration around a metal surface, often leading to accelerated degradation.

The process of smoothing the surfaces of dental materials to reduce the risk of corrosion.

Different formulations of dental amalgams, each with unique properties and behaviors during clinical use.

Holds fractured portions in place during dental procedures.

Inserted between teeth to adapt matrix and separate teeth.

Combining mercury and alloy for dental amalgam composition.

Mixing mercury and alloy to create a uniform dental amalgam.

Compacting dental amalgam into the cavity preparation.

Shaping the surface of the amalgam after it is packed.

Finishing the amalgam restoration for smoothness and aesthetics.

Tools used for measuring fixed amounts of mercury or alloy.

The use of machines to mix mercury and alloy, more common than hand trituration.

A machine designed to mix encapsulated dental amalgam materials.

Pre-proportioned mercury and alloy wrapped in a capsule for ease of mixing.

The process of compacting amalgam into a cavity using a hand instrument.

A flat-ended hand instrument used to pack amalgam into cavities.

Machines that use ultrasonic vibration to condense amalgam, but may cause localized heating.

The recommended mixing duration for amalgam, typically 5-20 seconds.

A delay between trituration and condensation can lead to poor amalgam support.

High condensing force is needed for lathe-cut amalgam alloys to achieve best results.

An amalgam that stands proud of tooth structure indicates proper condensation.

Rubbing soft amalgam with cotton wool creates a matt finish before hardening.

Thin tape used to mark occlusal contacts in hardened amalgam restorations.

Require lower condensation pressures and are easier to carve than lathe-cut amalgams.

A matrix used during amalgam formation must be removed during carving.

Achieving a uniform mass of amalgam is crucial for its strength and performance.