Investigation of antibacterial efficacy of Acacia nilotica against salivary mutans streptococci: a randomized control trial

Self-Instruction Exercise No. 361
Member Information
Required for AGD members
Required for non-members
Are you an AGD member?
Yes    No 		If Yes, please enter your AGD Number:
Full Name (First & Last):
Address:
Address 2:
City:
State/Province:
ZIP/Postal Code:
Country:
E-mail:
Promotional Code


Payment Information

Enroll me for Self-Instruction so that I can submit this exercise. My credit card information is entered below. I understand that my card will be charged $30 if I am an AGD member and $50 if I am a non-member.

I am currently enrolled in the Self-Instruction program. (If you are unsure of your enrollment status, please call 888.243.3368, ext. 4336.)
 
Card Type  
Visa          MasterCard    American Express   
Card Number  
Expiration Date    


Exercise No. 361
Subject Code: 013
Microbiology

The 15 questions for this exercise are based on the article, Investigation of antibacterial efficacy of Acacia nilotica against salivary mutans streptococci: a randomized control trial, on pages 23-27. This exercise was developed by Jean Carlson, DDS, FAGD, in association with the General Dentistry Self-Instruction committee.

Reading the article and successfully completing this exercise will enable you to:

  • identify the physical properties of Acacia nilotica (AN);
  • recognize the action of AN against mutans streptococci (MS); and
  • understand the efficacy of chlorhexidine mouthrinses compared with AN mouthrinses.

Answers for this exercise must be received by December 31, 2015.
  1. Dental caries results from the interplay of all the following factors except one. Which is the exception?

    A. bacteria in dental plaque
    B. dietary carbohydrates
    C. physiologic age
    D. susceptible tooth surfaces

  2. Chlorhexidine has all of the following inherent side effects except one. Which is the exception?

    A. burning sensation
    B. altered taste
    C. staining of teeth
    D. mucosal sloughing

  3. An AN mouthrinse exhibits antibacterial effects against halitosis-inducing bacteria on the tongue. The efficacy of AN against MS remains unproven in in vitro studies.

    A. Both statements are true.
    B. The first statement is true; the second is false.
    C. The first statement is false; the second is true.
    D. Both statements are false.

  4. Volunteers in Group 1 were given _____% AN mouthrinse for use in the study.

    A. 40
    B. 50
    C. 60
    D. 70

  5. Study participants were instructed to rinse their mouths with ____ ml of solution for ____ seconds.

    A. 5; 30
    B. 10; 30
    C. 5; 60
    D. 10; 60

  6. In subjects using the AN mouthrinse, the MS colony count was decreased by _____% at 30 days.

    A. 85
    B. 83
    C. 65
    D. 63

  7. The most common adverse reaction reported was altered taste sensation in both the AN and chlorhexidine groups. Brown staining was not observed in the AN group.

    A. Both statements are true.
    B. The first statement is true; the second is false.
    C. The first statement is false; the second is true.
    D. Both statements are false.

  8. In the placebo control group, a slight variation in MS colony count was reported. There was a slight increase in colony count at 30 days with a slight decrease at 60 days.

    A. Both statements are true.
    B. The first statement is true; the second is false.
    C. The first statement is false; the second is true.
    D. Both statements are false.

  9. AN stem bark extracts contain all of the following components except one. Which is the exception?

    A. free radicals
    B. tannins
    C. saponins
    D. flavonoids

  10. Mean compliance of mouthrinse use in the AN group was ____%.

    A. 91.2
    B. 93.6
    C. 95.2
    D. 97.6

  11. Mean compliance of mouthrinse use in the chlorhexidine group was _____%.

    A. 81.2
    B. 83.6
    C. 91.2
    D. 93.6

  12. The cost for 100 ml 0.2% chlorhexidine mouthrinse ranges between ____ Indian rupees.

    A. 55-100
    B. 105-150
    C. 155-200
    D. 205-250

  13. A quantity of 500 g AN powder is priced at _____ Indian rupees.

    A. 20
    B. 30
    C. 40
    D. 50

  14. The average age of participants in the placebo control group was ______ years.

    A. 21.16
    B. 21.42
    C. 22.16
    D. 22.74

  15. The placebo group was given _______ to use as a mouthrinse.

    A. ethanol
    B. saline water
    C. hydrogen peroxide
    D. chlorhexidine

Evaluation
Please respond to the statements below, using the following scale:
1 Poor; 2 Below average; 3 Average; 4 Above average; 5 Excellent
Practicality of the content 1 2 3 4 5
Benefit to your clinical practice 1 2 3 4 5
Quality of illustrations 1 2 3 4 5
Clarity of objectives 1 2 3 4 5
Clarity of exercise questions 1 2 3 4 5
Relevance of exercise questions 1 2 3 4 5
 
Did this exercise achieve its objectives? Yes No
Did this article present new information? Yes No
How much time did it take you to complete this exercise? mins

Cancel   
Facebook   Twitter AGD Advocacy   Linked In   AGD Blogger   YouTube   Google+