Title: Chapter 43: Test Generator Questions
Course: DEH 2821 Medically-Compromised Patient

Q: Hypersensitivity is easy to diagnose because the presenting symptoms are always the same as the etiologies. Management of hypersensitivity can be a challenge because there are numerous treatment approaches with varying degrees of efficacy.
- 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 false and the second statement is true

Q: All of the following stimuli elicit a pain reaction in individuals with hypersensitivity except one. Which one is the exception?
- Tactile
- Thermal
- Evaporative
- Ossific
- Chemical
A: Ossific

Q: Case Study 1
Mrs. Smith is scheduled to have a prophylaxis in your operatory for the first time. She has no positives on her medical history and her complete dental examination 6 months ago did not reveal any restorative concerns. Before you begin checking her, she holds up her hand and tells you that two teeth (#4 and 5) have been driving her crazy the last month or so. The pain happens when she touches the gum line area of both teeth with her nail or a toothbrush. You notice a small hole in her cheek near the right labial commissure and ask Mrs. Smith if this has always been there. Mrs. Smith said she had a facial piercing that she recently removed because it bothered her husband.

Reference: Ref 43-1

Open and read the attached case to answer the following question. What should you ask Mrs. Smith next?
- Do you have nail tips?
- Does the pain stop upon removal of the nail?
- Do you grind your teeth?
- Have you been under any stress lately?
- Do you use fluoride toothpaste?
A: Does the pain stop upon removal of the nail?

Q: Case Study 1
Mrs. Smith is scheduled to have a prophylaxis in your operatory for the first time. She has no positives on her medical history and her complete dental examination 6 months ago did not reveal any restorative concerns. Before you begin checking her, she holds up her hand and tells you that two teeth (#4 and 5) have been driving her crazy the last month or so. The pain happens when she touches the gum line area of both teeth with her nail or a toothbrush. You notice a small hole in her cheek near the right labial commissure and ask Mrs. Smith if this has always been there. Mrs. Smith said she had a facial piercing that she recently removed because it bothered her husband.

Reference: Ref 43-1

Open and read the attached case to answer the following question. What is the most logical explanation for the sensitivity on teeth #4 and 5?
- Orthodontic tooth movement
- Periodontal surgery procedures
- Periodontal disease
- Metal jewelry in the facial piercing
- Overaggressive prior scaling
A: Metal jewelry in the facial piercing

Q: Which of the following factors contributes to loss of enamel and cementum and thus to sensitivity?
- Enamel and cementum overlap at the CEJ
- Attrition and abrasion
- Erosion from high pH drinks
- Brushing with baking soda
- Rinsing with bicarbonate of soda after getting sick
A: Attrition and abrasion

Q: A cervical lesion caused by occlusal stresses or tooth flexure from bruxing is called?
- Erosion
- Abrasion
- Attrition
- Abfraction
- Ablation
A: Abfraction

Q: Which of the following factors that can contribute to loss of enamel would not be considered from an iatrogenic source?
- Crown preparation that removes enamel or cementum and exposes dentin
- Improper stain removal techniques
- Root surface caries
- Instrumentation during scaling or root debridement procedures
- Class V restoration
A: Root surface caries

Q: The hydrodynamic theory states that a stimulus at the outer aspect of dentin causes fluid movement within the dentinal tubules. Developed by Brannstrom in the 1960s, the hydrodynamic theory is the currently accepted explanation for transmission of stimuli from the outer surface of dentin to the pulp.
- 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: Both statements are true

Q: Several mechanisms promote desensitization naturally over time. Which mechanism does not belong in this group?
- Mineral deposition within tubules from traumatic stimuli
- Dentin deposited on the floor and roof of pulp chamber by odontoblasts
- Organic debris covering the dentinal surface
- Iontophoresis of minerals into the tubules
- Inorganic debris that covers the tubules
A: Iontophoresis of minerals into the tubules

Q: Individuals react differently to pain associated with dentin hypersensitivity. Which of the following factors has no bearing on the pain reaction?
- Previous experience
- Home care techniques
- Age
- Pain expectations
- Gender
A: Home care techniques

Q: Which of the following teeth are most affected by hypersensitivity?
- The occlusal surfaces of the third molars
- The lingual surfaces of the maxillary central incisors
- The facial surfaces of the maxillary premolars
- The occlusal surfaces of the mandibular first molars
- The interproximal surfaces of the mandibular second molars
A: The facial surfaces of the maxillary premolars

Q: What happens to dentinal tubule orifices in the presence of dental biofilm?
- They stay the same in the presence of dental biofilm
- They decrease in size to half the original size
- They increase in number in the presence of dental biofilm
- They increase to three times the original size
A: They increase to three times the original size

Q: The identifying characteristics of dentin hypersensitivity include all of the following except:
- sharp, short, or transient pain of rapid onset
- cessation from pain upon removal of stimuli
- presents as a chronic condition with acute episodes
- pain upon pressure
A: pain upon pressure

Q: Which of the following desensitizing agents requires the use of an acid etch step prior to application?
- Dentin sealers
- Unfilled resins
- Oxalates
- 5% gluteraldehyde
- 5% potassium nitrate
A: Unfilled resins

Q: What is thought to be the cause of tooth whitening sensitivity?
- Peroxide readily passing through enamel and dentin into the pulp
- Increased home care during the whitening process
- Bleach readily passing through enamel and dentin into the pulp
- The preservative in the whitening agent
- The viscosity of the whitening agent
A: Peroxide readily passing through enamel and dentin into the pulp