Dental materials

Question 1

electrochemical reactions are primarily hazardous to

Answer 1

technicians

Question 2

abrasives are added to toothpastes to remove plaque and polish the tooth surface. Which of the materials listed below is not commonly used as an abrasive in toothpastes?

Answer 2

Potassium nitrate

Question 3

Sodium hypochlorite is used as a disinfecting agent, not only for materials but clinically (e.g. root canals). Problems are associated with. With of the following is incorrect?

Answer 3

does not deplete organic constituents of dentine

Question 4

what is the role of humectant in toothpastes?

Answer 4

prevents moisture loss

Question 5

what statement about sodium hyperchlorite is wrong?

Answer 5

It does not deplete dentine constituents

Question 6

who is most at risk hazards in the dental clinic?

Answer 6

dentist and nurse

Question 7

What is not the function of sodium lauryl sulphate?

Answer 7

to stregthen enamel

Question 8

who’s at greatest risk from freshly mied amalgam?

Answer 8

dentist and nurse

Question 9

for sodium hypochlorite, which statement is incorrect?

Answer 9

doesn’t cause depletion of organic constituents

Question 10

what is the name of the reaction that forms a new product and a by product

Answer 10

condensation polymerisation

Question 11

light and lasers causes damage to

Answer 11

eyes