Article 1: Length of tooth survival in older adults with complex medical, functional and dental backgrounds
1. What percentage of participants experienced their first tooth loss event within 12 months of enrollment in the study? Select answer A. 21.7 percent B. 18.6 percent C. 11.2 percent D. 9.5 percent
2.What percentage of participants who had five or more carious teeth or retained roots when they first arrived at the clinic experienced their first tooth loss event within 12 months? Select answer A. 21.60 percent B. 17.32 percent C. 14.01 percent D. 11.80 percent
3. Which one of the following was not a characteristic of the group of participants whose first tooth loss event was within the first two years of enrollment compared with those in the group that did not have a first tooth loss event until five or more years had passed? Select answer A. greater percentage were male B. had more medical conditions C. took slightly more medications D. had a reduced capacity to perform oral hygiene care
4. What was the hazard ratio, or risk of tooth loss, for participants with removable prostheses who had three or four carious teeth or retained roots when they first arrived at the clinic compared with that for those who did not wear removable prostheses and did not have any carious teeth or retained roots or caries when they arrived? Select answer A. 3.07 B. 2.16 C. 1.32 D. 0.85
Article 2: The Effects of Home-use and In-office Bleaching Treatments on Calcium and Phosphorus concentrations in tooth Enamel: An in vivo study
1. Participants receiving which one of the following bleaching agents had the lowest median phosphorus concentration on day 14 of treatment? Select answer A. home-use carbamide peroxide 10 percent B. home-use carbamide peroxide 20 percent C. in-office hydrogen peroxide 35 percent D. in-office hydrogen peroxide 38 percent
2. Participants receiving which one of the following bleaching agents had the lowest median phosphorus concentration on posttreatment day 14? Select answer A. home-use carbamide peroxide 10 percent B. home-use carbamide peroxide 20 percent C. in-office hydrogen peroxide 35 percent D. in-office hydrogen peroxide 38 percent
3. Participants receiving which one of the following bleaching agents had a decrease in median calcium concentration between baseline and day 7 of treatment? Select answer A. home-use carbamide peroxide 10 percent B. home-use carbamide peroxide 20 percent C. in-office hydrogen peroxide 35 percent D. in-office hydrogen peroxide 38 percent
4. Participants receiving which one of the following bleaching agents had the greatest decrease in median calcium concentration at posttreatment day 14? Select answer A. home-use carbamide peroxide 10 percent B. home-use carbamide peroxide 20 percent C. in-office hydrogen peroxide 35 percent D. in-office hydrogen peroxide 38 percent
Article 3: Repair or Replacement of Defective Restorations by Dentists in The Dental Practice-Based Research Network
1. What percentage of all treatments was for existing restorations with a diagnosis of secondary caries? Select answer A. 79 persent B. 64 percent C. 56 percent D. 43 percent
2. What percentage of defective restorations originally placed by the diagnosing dentist was treated by repair? Select answer A. 44 percent B. 32 percent C. 21 percent D. 15 percent
3. Which decade of dental school graduation was associated with the lowest percentage of defective restorations having been treated by repair? Select answer A. 1979 or earlier B. 1980 to 1989 C. 1990 to 1999 D. 2000 to 2008
4. Each of the following was associated with significantly greater probability of restoration repair, rather than replacement, except which one? Select answer A. fewer years since dental school graduation B. large group practice C. treating dentist placed existing restoration D. patient had dental insurance
Article 4: The Effect of Training on the Use of Tobacco-use Cessation Guidelines in Dental Settings
1. Which one of the following items from the attitude assessment had the highest mean score among the study’s control group dentists? Select answer A. feel well-prepared to intervene B. feel effective intervening C. feel I know how to assess tobacco use D. feel I have sufficient knowledge of pharmaceutical products
2. Which one of the following behaviors had the highest mean score among those who received training in a study workshop? Select answer A. recommend nicotine therapy B. offer self-help guide C. refer to a community-based cessation program D. refer to telephone quitline
3. Which one of the following attitudes had the greatest positive change from baseline to 12 months for the workshop training group? Select answer A. Intervening is an important part of a dentist’s role. B. I feel quite effective intervening. C. I am confident I know how to assess for tobacco use. D. I am confident I have sufficient knowledge of pharmacology.
4. What percentage of patients who used tobacco recalled having been advised to quit? Select answer A. 73 percent B. 59 percent C. 36 percent D. 22 percent
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