Chapter 36

Question 1

What are sealants?

Answer 1

Organic polymer resin that flows into the pits and fissures and bonds to the enamel surface by mechanical means (etch first)

Question 2

What is the purpose of sealants?

Answer 2

Provide a barrier to seal off the pit or fissure. Prevent oral bacteria.

Question 3

Classification of types of sealant material?

Answer 3

1

Question 4

What is the retention of sealants?

Answer 4

1

Question 5

What are some of the factors that affect retention?

Answer 5

1

Question 6

What is the maintenance of sealants?

Answer 6

4

Question 7

Definition of acid etchant

Answer 7

enamel surface is prepared by the application of phosphoric acid, which etches the surface to provide mechanical retention for the sealant

Question 8

Definition of articulating paper

Answer 8

inked ribbon held between teeth to determine tooth contacts

Question 9

Definition of bibulous

Answer 9

absorbent; flat bibulous pad, placed in the cheek over the opening of the Stensen’s duct, is used to aid in the maintaining a dry field while placing sealants

Question 10

Definition of biocompatibility

Answer 10

ability of things to exist together without harm

Question 11

Definition of Bis-GMA

Answer 11

bisphenol A-glycidyl methylacrylate; plastic material used for dental sealants

Question 12

Definition of bonding (mechanical)

Answer 12

physical adherence of one substance to another

Question 13

Definition of bond strength

Answer 13

expression of the degree of adherence between the tooth surface and the sealant

Question 14

Definition of conditioner

Answer 14

a substance added to another substance to increase its usability; in sealant placement, the acid etchant is added to the enamel to prepare it for bonding with the sealant

Question 15

Definition of curing

Answer 15

process b which plastic becomes rigid

Question 16

Definition of incipient caries

Answer 16

beginning caries, caries limited to the enamel

Question 17

Definition of in vitro

Answer 17

under laboratory conditions

Question 18

Definition of in vivo

Answer 18

within the living body

Question 19

Definition of micropores

Answer 19

tiny openings

Question 20

Definition of polymer

Answer 20

compound of high molecular weight formed by a combination of a chain of simpler molecules

Question 21

Definition of polymerization

Answer 21

reaction in which a high-molecular-weight product is produced by successive additions of a simpler compound

Question 22

Definition of sealant

Answer 22

organic polymer that bonds to an enamel surface by mechanical retention accommodated by projections of the sealant into micropores created in the enamel by etching

Question 23

Definition of viscosity

Answer 23

resistance to flow or alteration of shape by any substance as a result of molecular cohesion