Dental Materials

A drop of water on a Popsicle is an example of:

The tightening of a guitar string is an example of which of the following stresses?

The modulus of elasticity is an indication of what property of a material?

Cooled Materials will contract, and heated materials will expand. A measurement of this change in volume in relation to change in temperature is called the coefficient of thermal expansion.

When a stress is induced in a material that is greater than the materials yield strength the stress is ____ proportional to the strain in the material does not return to its original shape.

Which formula defines the modulus elasticity?

An example of a physical property is:

A twisting force is termed:

The ability of a material to dissolve in liquid is termed:

Elasticity is an example of which of the following properties?

The rate of heat flow through the material is referred to as:

Jennifer is a practicing hygienist who goes to a nearby restaurant each day for lunch. She often orders a cola with ice and a bowl of homemade soup. As she eats and drinks, her composite restorations (tooth colored) and tooth structure are expanding and contracting at different rates. This change in volume or length of the materials due to the hot food and cold drink is referred to as:

Fingernail polish remover has solvent properties as it will remove the polish from our fingernails. Another property polish remover has it is the tendency to evaporate. Fingernail polish remover can be said to have:

Match the properties with the procedure or situations. ____ is the force used to condense and amalgam in a preparation. A hardened cement having low _____ can firmly hold a patients gold crown in place for years in a wet environment. ____ is the term given to the increase of stress around defects within an object.

Postage stamps are now self adhesive. The paper (stamp) is referred to as the ____ and the sticky material on the back of the stamp is termed the ____.

Kristen has orthodontic appliances, commonly known as braces. These include metal brackets directly bonded to the facial surfaces with the bonding material. One bracket breaks off, and the failure occurs within the bonding material. This type of failure is considered to be:

Orthophosphoric acid (enamel etchant) is commonly used in a ____ concentration

Why do primary teeth need to be etched longer than permanent teeth?

Dentinal bonding systems function by way of:

The Dentin debris that is created when Dentin is cut or prepared by dental instruments is called:

The use of bonding in dentistry serves all of the following functions except:

An adhesive mechanism of a dentinal bonding system is a hybrid layer. It is composed of:

The following are all historical fallacies about dentinal bonding except one. Which one is the exception?

Which of the following cements are available in a single dose capsule much like that of silver amalgam filling material?

To dental cement that are used for caries control are:

All of the following are true for ZOE except:

Which of the following cement is most soluble?

One glass ionomer is next to slowly, the resulting mix is:

Cement are ____ soluble than the overlying restoration.

During mixing, which of the following cements should use as much of the area on the slab as possible to reduce the exothermic reaction?

Which of the following dental materials promotes the formation of secondary Dentin?

Which of the following is a common additive to glass powder, reduces melting temperature, and improve the flow of molten glass?

The cement of choice for meeting ceramic restorations to tooth structure is

The disadvantage, or drawback, of using polycarboxylate cement is:

ZOE maybe used for the following: temporary restorations, intermediate pieces, permanent restorations, looting temporary crowns, looting permanent crowns