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Continuing Education Program — July 2013

Article 1: A practitioner's guide to developing critical appraisal skills: what is the difference between clinical and statistical significance?

1. If investigators report a P value of less than .05 for the difference in mean scores between two study groups, how should a reader interpret this?

2. On the basis of a reported P value of greater than .05 for the difference in mean scores, a reader could conclude each of the following as a reasonable possibility except which one?

3. Though each of the following can be considered in drawing conclusions regarding a minimal clinically important difference (MCID), which one did the authors recommend as the highest priority?

4. On the basis of a study reporting a 95 percent confidence interval that includes the MCID, which one of the following conclusions would be most appropriate?

Article 2: Dietary supplement interactions with medications used commonly in dentistry

1. What percentage of survey respondents 50 years or older indicated that they did not discuss complementary and alternative medicine with their health care providers?

2. Which one of the following dietary supplements has been reported to inhibit platelet aggregation?

3. Which one of the following dietary supplements has been reported to induce metabolism of many benzodiazepines and may reduce their effectiveness?

4. Which one of the following drugs has an interaction rating of "D" when combined with evening primrose?

Article 3: An adverse event trigger tool in dentistry: a new methodology for measuring harm in the dental office

1. What was the positive predictive value for occurrence of an adverse event within a patient's record in which one or more of the triggers were identified?

2. What was the positive predictive value for occurrence of an adverse event within a patient's record that was selected randomly?

3. Which type of adverse event was identified most frequently among all of the patients' records examined for the study?

4. How many of the triggered patients' records contained an adverse event that was rated as "E," or temporary harm to the patient that required intervention?

Article 4: The effects of beverages on plaque acidogenicity after a sugary challenge

1. What was the lowest level of daily sucrose intake beyond which the authors suggested an adult or teenager would face an increased caries rate?

2. What was the mean length of time after cereal was consumed alone that plaque pH remained below 6.0?

3. Which participants had returned to approximately their mean baseline pH levels within 35 minutes of eating the sugary cereal?

4. Which one of the following was associated with the largest maximum pH drop?

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