Article 1: Parkinson Disease: Systemic and Orofacial Manifestations, Medical and Dental Management 

1. What percentage of those diagnosed with Parkinson disease are younger than 50 years?
Select answer A. 5 percent B. 10 percent C. 15 percent D. 20 percent

2. Which one of the following medications for treatment of the disease is associated with development of stiff, fibrotic heart valve leaflets?
Select answer A. rasagiline B. pramipexole C. ropinirole D. cabergoline

3. Each of the following is associated with later stages in the disease process except which one?
Select answer A. limitation in upward gaze B. involuntary mandibular movements C. increased rate of eye blinking D. hurried and soft speech

4. Which one of the following medications may result in a toxic interaction with rasagiline that includes hyperthermia, hypertension, and tachycardia?
Select answer A. meperidine B. erythromycin C. levonordefrin D. epinephrine

Article 2: Removing Root Canal Obturation Materials: A Comparison of Rotary File Systems and Re-treatment Agents 

1. Which one of the following was associated with the fastest re-treatment working time?
Select answer A. gutta-percha removed with ProTaper Universal re-treatment files (Dentsply Tulsa Dental, Tulsa, Okla.) and chloroform B. gutta-percha removed with EndoSequence rotary files (Brasseler, Savannah, Ga.) and orange solvent C. resin-based composite removed with EndoSequence rotary files and orange solvent D. resin-based composite removed with ProTaper Universal re-treatment files and chloroform

2. Of the 88 re-treated root canals within the 12 treatment groups, how many experienced complete removal of obturation materials (and smear layer)?
Select answer A. none B. eight C. 27 D. 67

3. What percentage of root canal surfaces in group 4 had 100 percent coverage of obturation material?
Select answer A. 37.4 percent B. 43.3 percent C. 59.7 percent D. 68.2 percent

4. In which one of the following instances was obturation material removal most effective?
Select answer A. removal of gutta-percha from the coronal aspect B. removal of resin-based composite from the coronal aspect C. removal of gutta-percha from the apical aspect D. removal of resin-based composite from the apical aspect

Article 3: The Frequency of Bleeding Complications After Invasive Dental Treatment in Patients Receiving Single and Dual Antiplatelet Therapy 

1. Which one of the following is an intravenous antiplatelet medication?
Select answer A. clopidogrel B. ticlopidine C. cilostazol D. abciximab

2. What was the mean number of medications being taken by each patient in the study?
Select answer A. 3.6 B. 5.1 C. 8.3 D. 9.7

3. What percentage of the extraction visits in the study group included adjunctive perioperative hemostatic measures?
Select answer A. 38 percent B. 59 percent C. 71 percent D. 88 percent

4. How many of the patients in the study had documented episodes of postoperative bleeding complications that resulted in visits or phone calls to dental clinics?
Select answer A. none B. two C. seven D. 10

Article 4: Assessing the Influence of Skin Color and Tooth Shade Value on Perceived Smile Attractiveness 

1. For images in tooth shade 01, which one of the following skin tones was rated highest?
Select answer A. fair skin B. fair/medium skin C. medium/dark skin D. dark skin

2. For images in tooth shade 03, which one of the following skin tones was rated lowest?
Select answer A. fair skin B. fair/medium skin C. medium/dark skin D. dark skin

3. For images in tooth shade 04, which one of the following skin tones was rated lowest?
Select answer A. fair skin B. fair/medium skin C. medium/dark skin D. dark skin

4. For images in tooth shade 05, which one of the following skin tones was rated lowest?
Select answer A. fair skin B. fair/medium skin C. medium/dark skin D. dark skin

To submit your test answers, click the "Submit" button below. The JADA CE payment screen on the University of Colorado Health Sciences Center Web site will open in a new window. Following payment, confirmation of the credits you've earned will be displayed for printing. An additional confirmation will be sent by e-mail and postal mail.

Please note, you will not have the opportunity to revise your answers once you've submitted the test.