Question 1

Eighty-five percent of dental caries on posterior teeth of children ages 5 to 17 occur on which surface?

Accepted Answer

A)  Mesial 
B)  Distal 
C)  Buccal 
D)  Lingual 
E)  Occlusal 
A)  Mesial 
B)  Distal 
C)  Buccal 
D)  Lingual 
E)  Occlusal E

Question 2

Surveys report that orofacial injuries most frequently occur in which sport when the athlete is not wearing a mouth protector?

Accepted Answer

A)  Basketball 
B)  Football 
C)  Hockey 
D)  Skiing 
E)  Golf 
A)  Basketball 
B)  Football 
C)  Hockey 
D)  Skiing 
E)  Golf A

Question 3

How should a mouth protector be stored when not in use?

Accepted Answer

A)  In a cool, dry place 
B)  In water to prevent shrinkage 
C)  In the case provided by the dentist 
D)  In a denture cleaner to remove any bacteria present 
A)  In a cool, dry place 
B)  In water to prevent shrinkage 
C)  In the case provided by the dentist 
D)  In a denture cleaner to remove any bacteria present C

Question 4

Which composition is used to help prevent caries in the pits and fissures of posterior teeth?

Accepted Answer

A)  Glass ionomers 
B)  Polymers 
C)  Acrylic 
D)  Ceramic 
A)  Glass ionomers 
B)  Polymers 
C)  Acrylic 
D)  Ceramic

Question 5

Which light spectrum is used to polymerize sealant materials?

Accepted Answer

A)  Incandescent 
B)  Fluorescent 
C)  Ultraviolet 
D)  Visible 
A)  Incandescent 
B)  Fluorescent 
C)  Ultraviolet 
D)  Visible

Question 6

Etchants are generally _____ acid.

Accepted Answer

A)  hydrochloric 
B)  phosphoric 
C)  salicylic 
D)  acetic 
A)  hydrochloric 
B)  phosphoric 
C)  salicylic 
D)  acetic

Question 7

Which of the following statements is true regarding placement of a sealant?

Accepted Answer

A)  If an etched tooth becomes contaminated with saliva, the etching and rinsing steps need not be repeated. 
B)  The self-cured sealant is cured with a light source for at least 20 seconds. 
C)  Moisture enhances retention of the sealant by the fissure. 
D)  A small cotton pellet may be used to remove sealant that has failed to polymerize because of exposure to air. 
E)  If a fluoride treatment is used in conjunction with the pit and fissure sealant, the fluoride treatment is applied before the sealant has polymerized. 
A)  If an etched tooth becomes contaminated with saliva, the etching and rinsing steps need not be repeated. 
B)  The self-cured sealant is cured with a light source for at least 20 seconds. 
C)  Moisture enhances retention of the sealant by the fissure. 
D)  A small cotton pellet may be used to remove sealant that has failed to polymerize because of exposure to air. 
E)  If a fluoride treatment is used in conjunction with the pit and fissure sealant, the fluoride treatment is applied before the sealant has polymerized.

Question 8

What should the operator do if teeth become contaminated with saliva after they are etched?

Accepted Answer

A)  Re-etch, rinse, and dry. 
B)  Rinse the area again and dry it. 
C)  Use the high-velocity suction to dry. 
D)  Add more cotton rolls for moisture control. 
A)  Re-etch, rinse, and dry. 
B)  Rinse the area again and dry it. 
C)  Use the high-velocity suction to dry. 
D)  Add more cotton rolls for moisture control.

Question 9

Of the following, which would not be a sign of mouth-protector deterioration?

Accepted Answer

A)  Tearing 
B)  Bite-through 
C)  Discoloration 
D)  General wear 
A)  Tearing 
B)  Bite-through 
C)  Discoloration 
D)  General wear

Question 10

What does thixotropic mean?

Accepted Answer

A)  Viscosity of the material is changeable. 
B)  Material will adhere to an intraoral surface. 
C)  Grain size of cast gold is affected by quenching. 
D)  Setting time of the material is affected by glove powder. 
A)  Viscosity of the material is changeable. 
B)  Material will adhere to an intraoral surface. 
C)  Grain size of cast gold is affected by quenching. 
D)  Setting time of the material is affected by glove powder.

Question 11

What is the purpose of benzoyl peroxide in sealant materials?

Accepted Answer

A)  Monomer 
B)  Inorganic filler 
C)  Initiator of a two-component sealant system 
D)  Initiator of a one-component sealant system 
E)  Organic amine accelerator of a one-component sealant system 
A)  Monomer 
B)  Inorganic filler 
C)  Initiator of a two-component sealant system 
D)  Initiator of a one-component sealant system 
E)  Organic amine accelerator of a one-component sealant system

Question 12

Which of the following materials is the chemistry of sealants most similar to?

Accepted Answer

A)  Composite restorative material 
B)  Acidulated phosphate-fluoride 
C)  Ceramic restorative material 
D)  Glass ionomer cement 
A)  Composite restorative material 
B)  Acidulated phosphate-fluoride 
C)  Ceramic restorative material 
D)  Glass ionomer cement

Question 13

Discuss the significance of placing a pit and fissure sealant over existing caries.

Accepted Answer

One concern is what happens to dental ca

Question 14

Neutral sodium fluoride is used for patients with composites, ceramics, and glass ionomers, because it will not _____ esthetic restorations.

Accepted Answer

A)  stain 
B)  etch 
C)  marginate 
D)  remineralize 
A)  stain 
B)  etch 
C)  marginate 
D)  remineralize

Question 15

What is the optimum mixing time for a two-step, self-curing, sealant material?

Accepted Answer

A)  5 to 10 seconds 
B)  10 to 15 seconds 
C)  15 to 20 seconds 
D)  20 to 25 seconds 
A)  5 to 10 seconds 
B)  10 to 15 seconds 
C)  15 to 20 seconds 
D)  20 to 25 seconds

Question 16

Which of the following statements is true of the manipulation of fluoride foams and gels during their application for office fluoride treatment?

Accepted Answer

A)  The troughs of the maxillary and mandibular trays should be completely filled with the gel. 
B)  The teeth are to be kept as free from saliva as possible before application of the tray. 
C)  After application of the gel, the patient is instructed not to eat for 4 hours. 
D)  Rinses are recommended for children under 6 years old. 
E)  They should be applied prior to dental prophylaxis. 
A)  The troughs of the maxillary and mandibular trays should be completely filled with the gel. 
B)  The teeth are to be kept as free from saliva as possible before application of the tray. 
C)  After application of the gel, the patient is instructed not to eat for 4 hours. 
D)  Rinses are recommended for children under 6 years old. 
E)  They should be applied prior to dental prophylaxis.

Question 17

Identify four criteria for not using a pit and fissure sealant.

Accepted Answer

Current evidence indicates that sealants

Question 18

What is the purpose of etching enamel prior to placing a sealant?

Accepted Answer

A)  Improve wetting 
B)  Cleaning the enamel surface 
C)  Makes the surface smooth and uniform. 
D)  A and B are correct 
A)  Improve wetting 
B)  Cleaning the enamel surface 
C)  Makes the surface smooth and uniform. 
D)  A and B are correct

Question 19

Which of the following statements is true about 4-minute versus 1-minute application of a fluoride treatment? A 4-minute application is

Accepted Answer

A)  not currently recommended. 
B)  less effective than a 1-minute application. 
C)  equally effective as a 1-minute application. 
D)  more effective than a 1-minute application. 
A)  not currently recommended. 
B)  less effective than a 1-minute application. 
C)  equally effective as a 1-minute application. 
D)  more effective than a 1-minute application.

Question 20

What did the results of a 5-year clinical study about sealant effectiveness, after a single application of a pit and fissure sealant, indicate?

Accepted Answer

A)  Increased 
B)  Decreased 
C)  Remained unchanged 
D)  Was tied to oral hygiene 
A)  Increased 
B)  Decreased 
C)  Remained unchanged 
D)  Was tied to oral hygiene

Eighty-five percent of dental caries on posterior teeth of children ages 5 to 17 occur on which surface?

Surveys report that orofacial injuries most frequently occur in which sport when the athlete is not wearing a mouth protector?

How should a mouth protector be stored when not in use?

Which composition is used to help prevent caries in the pits and fissures of posterior teeth?

Which light spectrum is used to polymerize sealant materials?

Etchants are generally _____ acid.

Which of the following statements is true regarding placement of a sealant?

What should the operator do if teeth become contaminated with saliva after they are etched?

Of the following, which would not be a sign of mouth-protector deterioration?

What does thixotropic mean?

What is the purpose of benzoyl peroxide in sealant materials?

Which of the following materials is the chemistry of sealants most similar to?

Discuss the significance of placing a pit and fissure sealant over existing caries.

Neutral sodium fluoride is used for patients with composites, ceramics, and glass ionomers, because it will not _____ esthetic restorations.

What is the optimum mixing time for a two-step, self-curing, sealant material?

Which of the following statements is true of the manipulation of fluoride foams and gels during their application for office fluoride treatment?

Identify four criteria for not using a pit and fissure sealant.

What is the purpose of etching enamel prior to placing a sealant?

Which of the following statements is true about 4-minute versus 1-minute application of a fluoride treatment? A 4-minute application is

What did the results of a 5-year clinical study about sealant effectiveness, after a single application of a pit and fissure sealant, indicate?

Introduction to Restorative Dental Materials

Properties of Materials

Direct Esthetic Restorative Materials

Dental Amalgam

Finishing, Polishing, and Cleansing Materials

Cements

Impression Materials

Model and Die Materials

Waxes

Casting Alloys, Wrought Alloys, and Solders

Casting, Soldering, and Welding

Polymers in Prosthodontics

Dental Ceramics

Dental Implants

Filters

Exam 3: Preventive Dental Materials

Eighty-five percent of dental caries on posterior teeth of children ages 5 to 17 occur on which surface?

Surveys report that orofacial injuries most frequently occur in which sport when the athlete is not wearing a mouth protector?

How should a mouth protector be stored when not in use?

Which composition is used to help prevent caries in the pits and fissures of posterior teeth?

Which light spectrum is used to polymerize sealant materials?

Etchants are generally _____ acid.

Which of the following statements is true regarding placement of a sealant?

What should the operator do if teeth become contaminated with saliva after they are etched?

Of the following, which would not be a sign of mouth-protector deterioration?

What does thixotropic mean?

What is the purpose of benzoyl peroxide in sealant materials?

Which of the following materials is the chemistry of sealants most similar to?

Discuss the significance of placing a pit and fissure sealant over existing caries.

Neutral sodium fluoride is used for patients with composites, ceramics, and glass ionomers, because it will not _____ esthetic restorations.

What is the optimum mixing time for a two-step, self-curing, sealant material?

Which of the following statements is true of the manipulation of fluoride foams and gels during their application for office fluoride treatment?

Identify four criteria for not using a pit and fissure sealant.

What is the purpose of etching enamel prior to placing a sealant?

Which of the following statements is true about 4-minute versus 1-minute application of a fluoride treatment? A 4-minute application is

What did the results of a 5-year clinical study about sealant effectiveness, after a single application of a pit and fissure sealant, indicate?

Introduction to Restorative Dental Materials

Properties of Materials

Direct Esthetic Restorative Materials

Dental Amalgam

Finishing, Polishing, and Cleansing Materials

Cements

Impression Materials

Model and Die Materials

Waxes

Casting Alloys, Wrought Alloys, and Solders

Casting, Soldering, and Welding

Polymers in Prosthodontics

Dental Ceramics

Dental Implants

Filters