Polymer Science and Dental Materials Quiz

<p>They are used as bonding agents for crowns and bridges. (A)</p> Signup and view all the answers

<p>They are created from many repeating monomers linked together. (B)</p> Signup and view all the answers

<p>DNA (A), Polysaccharides (B)</p> Signup and view all the answers

<p>Synthetic polymers (B)</p> Signup and view all the answers

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

<p>They are synthesized through polymerization reactions (D)</p> Signup and view all the answers

<p>C2H4 (D)</p> Signup and view all the answers

<p>They degrade or decompose. (D)</p> Signup and view all the answers

<p>They are sensitive to heat changes. (B)</p> Signup and view all the answers

<p>They cannot be melted down again. (B)</p> Signup and view all the answers

<p>Heat sensitivity. (B)</p> Signup and view all the answers

<p>They can deform but do not retain new shapes. (B)</p> Signup and view all the answers

<p>Heat (B), Microwaves (C)</p> Signup and view all the answers

<p>To initiate the polymerization reaction (D)</p> Signup and view all the answers

<p>Infrared rays (B)</p> Signup and view all the answers

<p>By decomposing to release free radicals (B)</p> Signup and view all the answers

<p>It aids in the release of free radicals (B)</p> Signup and view all the answers

<p>One has long chains and the other has a diverse molecular weight distribution. (D)</p> Signup and view all the answers

<p>They are formed from two or more different types of monomers. (C)</p> Signup and view all the answers

<p>Different types exhibit differing molecular weight distributions. (D)</p> Signup and view all the answers

<p>They can include multiple types of monomers in various combinations. (D)</p> Signup and view all the answers

<p>Variations in chain length and type can lead to varied physical properties. (B)</p> Signup and view all the answers

<p>They behave in a ductile manner. (A)</p> Signup and view all the answers

<p>They are sensitive to the rate of loading. (A)</p> Signup and view all the answers

<p>They experience more permanent deformation. (B)</p> Signup and view all the answers

<p>Slow loading rates allow for more ductile behavior. (C)</p> Signup and view all the answers

<p>Polymers' behavior changes based on the loading rate. (B)</p> Signup and view all the answers

Materials used to restore teeth and match their natural color.

Materials that hold crowns, bridges, or other restorations in place.

The visible outer layer of crowns and bridges.

Long, chain-like molecules made up of many repeating units.

The smallest repeating unit in a polymer chain.

Polymers found in nature, like proteins, rubber, and starches.

Polymers created in a lab through chemical reactions.

Long chains of amino acids, the building blocks of life.

A natural polymer found in rubber trees, used in dental materials.

Complex carbohydrates, like agar and alginate, used in dental materials.

These materials cannot be melted and reshaped into a new form.

Their strength and other properties are easily affected by high temperatures.

These materials break down or decompose when exposed to high temperatures.

These materials are relatively soft, meaning they can be easily deformed.

Materials that can be formed into different shapes without melting.

A substance that starts a chemical reaction, like a chain reaction in polymerization.

The breaking down of molecules into smaller parts, often through the addition of heat or light.

Highly reactive molecules with a single unpaired electron, capable of starting a chain reaction.

The process of joining small molecules (monomers) into long chains (polymers).

A chemical compound containing oxygen atoms bonded together, often used as an initiator in polymerization reactions.

A polymer made up of two or more different types of monomer units.

A type of polymer with long, large chains, usually referring to a higher molecular weight distribution.

A type of polymer with shorter, smaller chains, usually referring to a lower molecular weight distribution.

The distribution of different chain lengths in a polymer.

Polymers exhibit different behavior depending on how quickly a load is applied. At slow loading rates, they act more like a metal, allowing for significant deformation before breaking.

Polymers are materials that exhibit both solid (elastic)-like and liquid (viscous)-like properties.

When a material can be permanently deformed without breaking, it is said to be ductile.

The tendency for a material to deform permanently, changing its original shape, is called permanent deformation.

The amount of strain (deformation) a material experiences when subjected to a stress (force).