Influence of periodontal biotype on the presence of interdental papilla

Self-Instruction Exercise No. 337
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Exercise No. 337
Subject Code: 490
Periodontics

The 15 questions for this exercise are based on the article, “Influence of periodontal biotype on the presence of interdental papilla”, on pages 20-24. This exercise was developed by Gustav Gates, DDS, MAGD, in association with the General Dentistry Self-Instruction Committee.

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

  • how the absence of the interdental papillae can be a negative influence on dental esthetics;
  • how periodontal biotype can influence the presence or absence of the interdental papilla; and
  • how periodontal biotype, presence of interdental papilla, loss of papillary height, and the distance between the contact point and bone crest were evaluated.

Answers for this exercise must be received by August 31, 2014.
  1. The study evaluated all of the following factors that can influence the presence or absence of the interdental papilla except one. Which is the exception?

    A. distance between the base of the contact point and the bone crest
    B. loss of papilla height
    C. buccal lingual width of the teeth
    D. periodontal biotype

  2. Loss of the interdental papilla caused by severe periodontal disease can usually be reconstructed. If the loss of papilla is related to soft tissue damage only, the papilla is difficult to reconstruct.

    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.

  3. Patients were excluded from the study for all of the following reasons except one. Which is the exception?

    A. smoking
    B. posterior restorations
    C. uncontrolled systemic disease
    D. transplantation

  4. All of the following measurements were recorded during the study except one. Which is the exception?

    A. distance between contact point and incisal edge
    B. periodontal biotype
    C. loss of papillary height
    D. presence of interdental papilla

  5. When evaluating the presence of interdental papilla, the papilla was considered present if there was ____ % visible space present.

    A. 0
    B. 10
    C. 20
    D. 30

  6. A papilla was present ____ % more frequently in the thin biotype group than the thick biotype in the lateral incisor-canine position.

    A. 15.4
    B. 26.7
    C. 31.6
    D. 38.3

  7. The loss of papilla height classification showed that most papillae were classified as normal ____ % of the time.

    A. 51.6
    B. 59.7
    C. 65.3
    D. 67.4

  8. In the loss of papilla height classification, Class ____ was found to be significantly more numerous in the thick biotype group.

    A. I
    B. II
    C. III
    D. IV

  9. When tooth regions were compared by periodontal biotype for 6 mm contact point-bone crest distance, only the __________ region showed a statistically significant difference between groups.

    A. central-central
    B. central-lateral
    C. lateral-canine
    D. canine-premolar

  10. At a 6 mm contact point-bone crest distance, the thick biotype group presented a papilla in ____ % of the sites.

    A. 15.7
    B. 36.8
    C. 55.4
    D. 77.5

  11. According to the authors, esthetic periodontal techniques are considered successful for all of the following reasons except one. Which is the exception?

    A. quality of postoperative symptoms
    B. lack of scarring
    C. predictability of results
    D. no tooth mobility

  12. The thin bone/gingival pattern provides more resistance to tissue injury. It also has a more predictable surgical result.

    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.

  13. The thick bone/gingival pattern has all of the following characteristics except one. Which is the exception?

    A. less bone remodeling
    B. less resistant to injuries
    C. more predictable surgical procedures
    D. more predictable tissue positioning

  14. The thin bone/gingival pattern is characterized by all of the following except one. Which is the exception?

    A. scalloped topography
    B. broad band of keratinized tissue
    C. very thin bone
    D. delicate tissue

  15. Maintaining papilla contour in severe bone loss cases can be related to __________.

    A. fibrotic configuration
    B. oval-shaped teeth
    C. more coronal contact point
    D. small band of keratinized tissue

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
 
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