Article 1: An Analysis of Dentists’ Incomes, 1996–2009
1. After what year did the recent decline in general practitioners' (GPs') income levels begin?
2. After regression adjustment for age, sex and practice location, what average annual decrease in GPs’ incomes during the period studied was reported by the authors?
A. 5 percent
B. 4 percent
C. 3 percent
D. 2 percent
3. During the period studied, what was the net average change in real gross billings per visit?
A. increase of 1.7 percent
B. increase of 0.9 percent
C. decrease of 0.7 percent
D. decrease of 2.1 percent
4. What was the change in absolute number of dental visits in the United States during the period studied?
A. increase of 11 million visits
B. increase of 3 million visits
C. decrease of 1 million visits
D. decrease of 14 million visits
Article 2: The Effect of Long-term Disinfection on Clinical Contact Surfaces
1. Which one of the following surface types had the lowest blood removal score with use of tap water?
A. brushed aluminum
B. enameled metal
C. smooth stainless steel
D. laminated, heat-resistant thermosetting plastic
2. Which one of the following surface types had the highest blood removal score with every disinfectant used?
A. smooth vinyl
B. textured vinyl
C. service line rubber hosing
D. acrylic resin sheets
3. Which one of the following surface types had statistically significant differences between beginning and ending cleaning values for six of the seven solutions?
A. enameled metal
B. service line rubber hosing
C. high-impact plastic
D. brushed aluminum
4. Which one of the following solutions had no statistically significant differences between beginning and ending cleaning values with all nine surface types tested?
A. Lysol Brand II IC Disinfectant Spray (Reckitt Benckiser, Parsippany, N.J.)
B. DisCide Ultra Disinfecting Spray (Palmero Health Care, Stratford, Conn.)
C. CaviCide spray (Metrex, Orange, Calif.)
D. Opti-Cide3 solution (Biotrol, Earth City, Mo.)
Article 3: Outcomes of Endodontic Therapy in General Practice: A Study by the Practitioners Engaged in Applied Research and Learning Network
1. What was the most common reason for extraction of the endodontically treated index teeth?
A. endodontic failure
B. advanced periodontitis
C. recurrent caries
D. root fracture
2. Which one of the following was found to have the lowest odds ratio for association with an index tooth extraction?
A. absence of a post
B. diagnosis of necrotic pulp
C. teeth with multiple canals
D. older patient age
3. What percentage of index teeth exhibited pain on percussion?
A. 8.3 percent
B. 6.1 percent
C. 3.6 percent
D. 1.9 percent
4. Which one of the following was significantly associated with subsequent failure of the index tooth’s endodontic treatment?
A. periodontal attachment loss
B. type of provider (generalist or specialist)
C. number of visits required to complete endodontic therapy
D. prescribing of antibiotics
Article 4: Correlates of Change in Self-perceived Oral Health Among Older Adults in Brazil: Findings From the Health, Well-Being and Aging Study
1. What percentage of participants reported that they had experienced a decline in oral health during the study?
A. 62.12 percent
B. 48.56 percent
C. 34.90 percent
D. 29.74 percent
2. Which one of the following subgroups had the highest percentage of participants whose total score on the General Oral Health Assessment Index (GOHAI) had become worse during the study period?
A. those with poor self-rated health
B. those with two or more diseases
C. those with 16 or more missing teeth
D. those with a denture
3. Which one of the following characteristics identified the highest percentage of participants whose total GOHAI score had improved during the study period?
B. age 60 to 64 years
C. reported having sufficient income
D. eight or more years of education
4. What was the adjusted odds ratio for having a negative change in GOHAI functional dimension score during the study period for people with 16 or more missing teeth?
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