DM chapter 2 Pretest

Most modern dental materials are made to be moisture resistant

Blank refers to the intensity or strength of the colour

Which would not be an adverse effect of a material

Which is true for the property of wetting as related to dental materials?

Which of the following is true of galvanism

The colour range of a tooth is usually seen by the human eye as yellow or brown. Known as its:

What force is applied when 2 surfaces slide against each other or in a twisting/rotating motion

Excessive expansion of resto material may result in

Chemical bonding requires what removal of tooth structure & blank retention btwn tooth & resto

Some materials are good in small amts for short time but others are irritating/toxic in large

Microleakage in interface btwn tooth & material is responsible for what observed in resto

Which of the following is most reliable to assess composite and glass ionomer restos

Which is the best thermal conductor

The thicker or thinner a material is, is called its

Which of the following dental restorative materials is susceptible to corrosion

Normal resting pH is saliva ranges from 6.2 to blank which is neutral

When an object can’t resist force, blank occurs

Contact btwn 2 dissimilar metals in the mouth may result in

Which of the following is NOT a good conductor of temp?

Fatigue failure occurs when

What is the amount of change that the force has produced

Which material has a CTE and thermal conductivity closest to enamel

Fatigue failure

Staining of resins and acrylics from constant exposure to coffee tea and dyed beverages is bc:

Which if the following is not a concern regarding identification of dental materials in mouth

Some materials give off heat when mixed known as:

The coefficient of thermal expansion is significant in dental materials bc :

Percolation

Microleakage is caused by

Which material has the highest ultimate compressive strength (lbs/in2)

Thermal conductivity of composite resin

Which is suggested to delay formation of surface tarnish on dental amalgams

Chewing forces on molar occlusals can increase to (blank) pounds per square inch on a cusp tip

Which is the most concerned with stretching of a material

Adhesion is the method of what retention