Title: Chapter 44: Test Generator Questions
Course: DEH 2821 Medically-Compromised Patient

Q: Removal of stains is for esthetic, not for health, reasons. Stains on the teeth are etiologic factors for disease or destructive processes.
- Both statements are true
- Both statements are false
- The first statement is true and the second statement is false
- The first statement is false and the second statement is true
A: The first statement is true and the second statement is false

Q: How much of the outer enamel may be removed when polishing for 30 seconds with a pumice paste?
- A few millimeters
- None
- Too little to be measured
- Pumice paste should not be used for polishing teeth
- A few μm
A: A few μm

Q: Case Study 1
Mr. Smith is a 45-year-old male patient. He has a medical history that is unremarkable. He has several restorations and crowns with generalized moderate periodontal disease. He smokes, drinks coffee, and feels like his teeth are yellow. He has generalized recession of 2 to 3 mm apical to the CEJ and generalized rolled margins with 4- to 5-mm pockets.

Reference: Ref 44-1

Open and read the attached case to answer the following question. After your first root planing appointment, Mr. Smith asks to have his teeth polished to brighten them up. What should you do?
- Polish by quadrant after each root planing session
- Avoid polishing because of the patient's attitude
- Avoid polishing after root planing so particles do not imbed in the tissue
- Avoid polishing due to the possibility of damaging the pulp due to heat
- Be sure to polish with coarse paste to remove the smoking stain
A: Avoid polishing after root planing so particles do not imbed in the tissue

Q: Case Study 1
Mr. Smith is a 45-year-old male patient. He has a medical history that is unremarkable. He has several restorations and crowns with generalized moderate periodontal disease. He smokes, drinks coffee, and feels like his teeth are yellow. He has generalized recession of 2 to 3 mm apical to the CEJ and generalized rolled margins with 4- to 5-mm pockets.

Reference: Ref 44-1

Open and read the attached case to answer the following question. What is the best method to use to remove the stain on the exposed root surfaces?
- Coarse paste with light pressure
- Medium-grit paste with heavy pressure
- Root plane the stain during instrumentation
- Bleaching trays to be used by the patient at night
- Leave the stain on the root surfaces
A: Root plane the stain during instrumentation

Q: Case Study 1
Mr. Smith is a 45-year-old male patient. He has a medical history that is unremarkable. He has several restorations and crowns with generalized moderate periodontal disease. He smokes, drinks coffee, and feels like his teeth are yellow. He has generalized recession of 2 to 3 mm apical to the CEJ and generalized rolled margins with 4- to 5-mm pockets.

Reference: Ref 44-1

Open and read the attached case to answer the following question. What is the best way to determine where Mr. Smith has restorations that should not be polished?
- You should polish all teeth and restorations so they feel smooth
- You should ask the patient where he has fillings
- You should check the radiographs and charting before polishing
- You should avoid polishing anyone who has restorations
A: You should check the radiographs and charting before polishing

Q: All of the following medical conditions are considered contraindications for polishing except one. Which one is the exception?
- Asthma
- Emphysema
- Cystic fibrosis
- Tuberculosis
- Anemia
A: Anemia

Q: The Mohs hardness value is indicative of a material's resistance to scratching. Diamonds have a maximum Mohs value of 10. Which of the following substances would have the highest Mohs value after diamonds?
- The most abrasive cleaning agent available (aluminum silicates)
- The most abrasive polishing agent available (silicon carbine)
- Cementum
- Dentin
- Enamel
A: The most abrasive polishing agent available (silicon carbine)

Q: Powdered pumice consists chiefly of complex silicates of aluminum, potassium, and sodium. Powdered pumice has what type of origin?
- Lunar
- Ocean
- Volcanic
- Beach
- Subterranean
A: Volcanic

Q: Additives are included in prophylaxis polishing pastes to provide a specific function. All of the following are enhancements provided by additives included in prophylaxis polishing pastes except one. Which one is the exception?
- Enhance the mineral surface of enamel
- Reduce gingival inflammation
- Diminish dentin hypersensitivity
- Whiten teeth
A: Reduce gingival inflammation

Q: You have a patient with open embrasures on teeth 22 to 27. He has a problem with heavy stain accumulation just below the CEJ in the . He wants you to remove all of this stain because the previous hygienist always did. What is the most acceptable method for removal of this stain?
- A rubber cup
- Dental tape with a polishing agent
- A finishing strip
- A bristle brush
- A periodontal file
A: Dental tape with a polishing agent

Q: Air-powder polishing systems use air, water, and which of the following ingredients in a controlled spray that propels the particles to the tooth surface?
- Sodium silicate
- Sodium bicarbonate
- Aluminum oxide
- Iron oxide
- Pumice flour
A: Sodium bicarbonate

Q: When air polishing is used, the orifice of the handpiece nozzle is kept in a constant circular motion, with the nozzle tip at what distance from the enamel surface?
- Touching the enamel surface
- 1 to 2 mm away from the enamel surface
- 4 to 5 mm away from the enamel surface
- 6 to 8 mm away from the enamel surface
- Should not be used on enamel surfaces
A: 4 to 5 mm away from the enamel surface

Q: There are many advantages to air-powder polishing. All of the following are advantages except one. Which one is the exception?
- Stain and biofilm removal from orthodontically banded teeth
- Removal of heavy chlorhexidine staining
- Can be used prior to sealant placement
- Less risk to cementum and dentin
- Requires less time by the clinician
A: Less risk to cementum and dentin

Q: Which of the following surfaces should not be polished with sodium bicarbonate air polishing powder?
- Porcelain
- Microfilled composite
- Amalgam
- Gold
- Enamel
A: Microfilled composite

Q: Contraindications for air polishing may include all of the following except one. Which one is the exception?
- Sodium-restricted diet
- Respiratory disease
- End-stage renal disease
- Communicable infection that can contaminate the aerosols produced
- Alcoholic
A: Alcoholic