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Participants must answer at least 12 of 15 questions correctly (80%) to earn CE credit.

Note: Exercise 994 is a special edition of the Self-Instruction Exercises and is only available to those members/nonmembers who attended the 2017 Scientific Session in Las Vegas. If you submit exercise 994 but did not attend the Scientific Session, the exercise will not be processed and your payment will be returned.

AGD - Self-Instruction Exercise No. 419 - Oral Medicine, Oral Diagnosis, Oral Pathology
Use of trichloroacetic acid for management of oral lesions caused by human papillomavirus

Self-Instruction Exercise No. 419
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Exercise No. 419
Subject Code: 730
Oral Medicine, Oral Diagnosis, Oral Pathology

The 15 questions for this exercise are based on the article Use of trichloroacetic acid for management of oral lesions caused by human papillomavirus on pages 47-49. This exercise was developed by Thomas J. Boyle, DMD, MAGD, ABGD, in association with the General Dentistry Self-Instruction committee.

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

  • understand the etiology, prevalence, and distribution of human papillomavirus (HPV) infections;
  • implement a successful treatment protocol for oral HPV infection; and
  • anticipate predictable treatment periods.

Answers for this exercise must be received by February 28, 2019.

  1. HPV has an affinity for epithelial cells present in all the following areas except one. Which is the exception?

    A. nasal
    B. oral
    C. axillary
    D. genital

  2. Different HPV pathoses include all the following except one. Which is the exception?

    A. verruca vulgaris
    B. verruciform xanthoma
    C. Heck disease
    D. papilloma

  3. The prevalent diagnosis in the population studied was __________.

    A. common wart
    B. condyloma acuminatum
    C. focal epithelial hyperplasia
    D. squamous cell papilloma

  4. A characteristic of HPV is its __________.

    A. encapsulation
    B. tetrahedral structure
    C. double circular DNA
    D. Parvoviridae family membership

  5. __________ are sessile, asymptomatic, cauliflower-like verrucosities.

    A. Verrucae
    B. Condylomata acuminata
    C. Heck lesions
    D. Hyperplasias

  6. Verrucae vulgares are benign tumors of the stratified epithelium. They occur only in adults.

    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.

  7. All of the following are effects of trichloroacetic acid (TCA) except one. Which is the exception?

    A. denaturation
    B. precipitation
    C. desiccation
    D. coagulation

  8. In gynecology, ___% TCA has been widely used.

    A. 20
    B. 40
    C. 60
    D. 80

  9. Which type of study was described in this article?

    A. randomized clinical
    B. prospective cohort
    C. cross-sectional
    D. case control

  10. In the study sample, the duration of TCA application was ____ seconds.

    A. 30-60
    B. 70-90
    C. 100-120
    D. 130-150

  11. Which of the following was used to neutralize the pH after application?

    A. sterile H2O
    B. H2O/NaHCO3
    C. H2O/alcohol
    D. H2O/NaClO

  12. Repeat applications were performed every ________.

    A. week
    B. 2 weeks
    C. 3 weeks
    D. month

  13. The highest prevalence of focal epithelial hyperplasia was found in patients aged _____ years.

    A. 0-10
    B. 11-21
    C. 33-43
    D. 44-54

  14. The therapeutic effect of TCA depends on all of the following except one. Which is the exception?

    A. application time
    B. technique of operator
    C. type of condition
    D. sufficient number of applications

  15. The use of 80% TCA caused the disappearance of HPV-associated lesions over a period ranging from ___ days to ___ month(s).

    A. 7; 1
    B. 15; 4
    C. 30; 6
    D. 45; 12


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