Article 1: Multiple endocrine neoplasia in an orthodontic patient: interprofessional diagnostic and treatment implications
1. Each of the following is a frequently reported dental feature of multiple endocrine neoplasia, type 2B (MEN 2B), except which one?
A. insufficient arch length with anterior crowding
B. posterior crossbite
C. widened mandibular canals
D. enlarged mental foramina
2. What is the approximate rate of occurrence of medullary thyroid cancer among patients with MEN 2B?
A. 90 percent
B. 70 percent
C. 50 percent
D. 30 percent
3. Each of the following is a clinical feature of pheochromocytoma except which one?
A. elevated heart rate
B. severe hypotensive episodes
C. elevated blood pressure
D. excessive sweating
4. Approximately what percentage of patients with MEN 2B probably has inherited the genetic mutation from a parent?
A. 70 percent
B. 60 percent
C. 50 percent
D. 40 percent
Article 2: The effects of periodontal curette handle weight and diameter on arm pain: a four-month randomized controlled trial
1. According to a survey by the American Dental Association, upper-extremity musculoskeletal disorders were diagnosed in what percentage of dentists in the United States?
A. 3.1 percent
B. 9.2 percent
C. 12.7 percent
D. 16.8 percent
2. What was the adjusted mean improvement in shoulder pain scores for participants in the light-instrument, wide-handle group?
3. What change in the mean number of nights awakened because of numbness in fingers was observed among participants in the light-instrument, wide-handle group?
A. 1.3 fewer nights
B. 0.9 fewer night
C. 0.7 fewer night
D. 0.5 fewer night
4. On the basis of exit survey results, which one of the following accounted for the highest mean rating of the study’s dental instrument by participants in the light-instrument, wide-handle group?
Article 3: A practitioner's guide to developing critical appraisal skills: interventional studies
1. Which one of the following types of clinical trial would be conducted with 100 to 200 human participants to evaluate optimal dosage for administration of a drug?
A. phase 1 trial
B. phase 2 trial
C. phase 3 trial
D. phase 4 trial
2. In a trial with a crossover design, each of the following is true except which one?
A. Each participant serves as his or her own control.
B. All participants are exposed to both the test and control interventions.
C. Randomization of participants generally is not required.
D. It often is necessary to have a pause or "washout" period during the trial.
3. Each of the following factors that could affect a trial’s results would be addressed by intent-to-treat analysis except which one?
A. experience of unpleasant side effects
B. inconvenience of treatment
C. improvement in health-related behaviors that are not related to treatment
D. failure to perceive benefit from treatment
4. Which one of the following best describes the term "positive control" with respect to patients in the control group of a clinical trial?
A. Examiners remain unaware that the participant has been assigned to the control group.
B. Participants remain unaware that they have been assigned to the control group.
C. Participants in the control group alter their habits because they are participating in a study.
D. Participants in the control group receive an intervention that is already known to be effective.
Article 4: Advancing infection control in dental care settings: factors associated with dentists' implementation of guidelines from the Centers for Disease Control and Prevention
1. Which one of the following infection control recommendations did the greatest percentage of responding dentists indicate they had implemented?
A. has a designated practice infection control coordinator
B. has a separate dental waterline system and periodically monitors water quality
C. always documents percutaneous injuries
D. tried or used a safer syringe or a safer scalpel
2. What percentage of responding dentists reported that they had implemented three or four of the recommendations?
A. 88.3 percent
B. 62.9 percent
C. 47.7 percent
D. 26.6 percent
3. Among the dentists who monitored water quality, which one of the following was the most frequently reported interval for monitoring?
4. What percentage of dentists and their staff with percutaneous injuries were referred for medical follow-up?
A. 96.2 percent
B. 81.4 percent
C. 67.3 percent
D. 50.9 percent
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