Title: Chapter 45: Test Generator Questions
Course: DEH 2821 Medically-Compromised Patient

Q: Which of the following is the use of free radicals to break down pigment in teeth?
- Tooth whitening
- Polishing
- Tooth bleaching
- Cleaning
A: Tooth bleaching

Q: Which of the following is the use of abrasive agents contained in a dentifrice to remove extrinsic stain?
- Tooth whitening
- Polishing
- Tooth bleaching
- Cleaning
A: Tooth whitening

Q: Which of the following is true of tooth bleaching?
- Bleaching products penetrate the enamel only
- Bleaching products penetrate the enamel and dentin and reach the pulp
- Bleaching products penetrate the enamel and dentin but do not reach the pulp
- Bleaching products do not penetrate the enamel
A: Bleaching products penetrate the enamel and dentin and reach the pulp

Q: How long does it take for tooth color to stabilize after bleaching?
- 6 months
- 1 month
- 1 week
- 2 weeks
A: 2 weeks

Q: Which of the following is true of hydrogen peroxide and carbamide peroxide as tooth bleaching agents?
- Carbamide peroxide is three times stronger than hydrogen peroxide and has a shorter working time
- Hydrogen peroxide is three times stronger than carbamide peroxide and has a longer working time
- Hydrogen peroxide is three times stronger than carbamide peroxide and has a shorter working time
- Carbamide peroxide is three times stronger than hydrogen peroxide and has a longer working time
A: Hydrogen peroxide is three times stronger than carbamide peroxide and has a shorter working time

Q: Which ingredient is added to vital tooth bleaching systems to thicken and control the flow of the bleaching agent to prevent overextending onto gingival tissues?
- Potassium nitrate
- Glycerin
- Calcium phosphate
- Sodium fluoride
A: Glycerin

Q: Which ingredient is added to vital tooth bleaching systems to create a calming effect on pulp by affecting the transmission of nerve impulses?
- Potassium nitrate
- Glycerin
- Calcium phosphate
- Sodium fluoride
A: Potassium nitrate

Q: Which of the following is not likely to have an interaction with bleaching agents or compromise treatment?
- Salt
- Coffee
- Tea
- Tobacco
A: Salt

Q: Which of the following is not a factor that influences outcome of tooth bleaching?
- Age of patient
- Initial tooth color
- Concentration of bleaching agent
- Gender of patient
A: Gender of patient

Q: Which of the following is not an additional benefit of bleaching?
- Antimicrobial action, resulting in a reduction in biofilm
- Improved patient motivation
- Caries control
- Reduction in gingival probing depths
A: Reduction in gingival probing depths

Q: Which one of the following factors will increase the effectiveness of vital tooth bleaching?
- Increasing the amount of gel placed on the tooth
- Increasing the concentration of the bleaching material
- Using a light or heat during the bleaching procedure
- Both B and C
A: Using a light or heat during the bleaching procedure

Q: Your patient Katie Smith recently started to bleach her teeth. Katie has noticed that immediately after removing her bleaching trays her teeth are white but within an hour they seem to turn a shade darker. What will you tell Katie?
- She needs to use a stronger concentration of material
- She needs to keep her bleaching trays in longer
- She needs to use more material in her bleaching trays
- Relapse of shade occurs almost immediately as newly bleached, dehydrated teeth rehydrate
A: Relapse of shade occurs almost immediately as newly bleached, dehydrated teeth rehydrate

Q: Your patient Mr. Jackson informs you that he has an appointment with the DDS following his prophylaxis appointment to have two tooth-colored fillings replaced on #8 and #9. Mr. Jackson asks about vital tooth bleaching and informs you that he hopes you will have time to take the appointment as soon as you are done so he can pick up his bleaching trays tomorrow. Mr. Jackson's chart indicates that the DDS has approved vital tooth bleaching for him and he is ready to start. What concerns do you have about this treatment plan, if any?
- The DDS has approved Mr. Jackson's bleaching, so there are no concerns
- Mr. Jackson needs to have his fillings placed right away
- Mr. Jackson should not have his fillings replaced until after bleaching
- Mr. Jackson could have sensitivity if he bleaches new restorations
A: Mr. Jackson should not have his fillings replaced until after bleaching

Q: Approximately what percentage of patients will experience transitory mild to moderate tooth sensitivity?
- One third
- One quarter
- One half
- Two thirds
A: Two thirds

Q: Which one of the following requires the use of a rubber dam?
- Professionally dispensed tooth bleaching
- Professionally applied tooth bleaching
- Self-directed whitening
- None of the above
A: Professionally applied tooth bleaching