Final

Question 1

what is the primary element in the new high-copper dental amalgam alloys?

Answer 1

silver

Question 2

what is a mercury amalgam?

Answer 2

a nonsense redundancy

Question 3

what is the best definition of amalgam?

Answer 3

an alloy of mercury with any other element

Question 4

what is the signifiant improvement found in clinical studies of dental amalgam restorations that is not a reason for replacing an amalgam restoration?

Answer 4

ditching at the margins of the amalgam

Question 5

what was the most significant change among laboratory data that differentiated the improvement in the high-copper content dental amalgam alloy?

Answer 5

decreased creep

Question 6

what was the improvement identified in clinical studies with the use of high copper dental amalgam alloy?

Answer 6

less ditching at the margins

Question 7

which kind of dental amalgam alloy, when mixed in the proper ratio with mercury, will in general demonstrate the lowest creep?

Answer 7

high-copper spherical alloy

Question 8

which of the following is a reason for replacing an amalgam alloy?

Answer 8

fracture of the amalgam

Question 9

what is eliminated from amalgam restorations made from conventional alloys when an amalgam restoration is made from high-copper content spherical alloys?

Answer 9

gamma 2

Question 10

if a patient is having a real negative systemic response to amalgam, which of the following is the most likely reason?

Answer 10

allergenicity

Question 11

when there is a presentation of images made with ultraviolet light that shows outgassing from an amalgam in vitro but stored in clinical conditions, what is most likely the UV absorbing gas?

Answer 11

water vapor

Question 12

which of the following is NOT a required statement when using dental amalgam?

Answer 12

there is a risk of chronic toxicity from the use of dental amalgam

Question 13

list the required statements when using dental amalgam

Answer 13

amalgam is an effective restorative, Hg is toxic, amalgam does release some Hg, not enough Hg is released to cause toxicity

Question 14

in the use of any material, but especially with the concerns about dental amalgam, which of the following is NOT a direction of real concern considering the toxicity of using the material in the practice?

Answer 14

publication of the International Academy of Oral Medicine and Toxicity

Question 15

which of the following symptoms experienced by a member of your staff in your dental office, or you, would you suggest that there might be chronic mercury toxicity problem from a mercury pool or leakage in your office?

Answer 15

intention tremor

Question 16

which of the following is the best reason for using a resin with addition polymerization as opposed to condensation polymerization for permanent dental restorations and prostheses?

Answer 16

no by-products in addition polymerization

Question 17

what has been used as the primary plasticizer in chairside soft denture reline materials ?

Answer 17

phthalate esters

Question 18

what is the primary constituent of the powder in a liquid/ powder system used for making polymethyl methacrylate dentures or most any of the other uses

Answer 18

polymethyl methacrylate beads

Question 19

most significant difference b/t chairside temp hard reline and a dental repair material

Answer 19

temporary hard reline material has a lower exotherm during polymerization

Question 20

material dentists can use to make the most dimensionally stable impression immediately after processing

Answer 20

dimethacrylate resin sheets that are light cured in an oven