Approaches to managing asymptomatic enamel and dentin cracks

Self-Instruction Exercise No. 358
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Exercise No. 358
Subject Code: 259
Fissurotomy (Micro) Dentistry

The 15 questions for this exercise are based on the article, “Approaches to managing asymptomatic enamel and dentin cracks”, on pages 58-62. This exercise was developed by Daniel S. Geare, DMD, in association with the General Dentistry Self-Instruction committee.

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

  • the nature of symptomatic and asymptomatic cracks;
  • the causes of symptomatic and asymptomatic cracks; and
  • treatment options for cracked teeth.

Answers for this exercise must be received by October 31, 2015.
  1. Pathological consequences of cracked teeth include all of the following except one. Which is the exception?

    A. caries
    B. periodontal involvement
    C. pulpal pathology
    D. temporomandibular dysfunction

  2. Tooth fractures are the ______ most common cause of tooth loss.

    A. fifth
    B. fourth
    C. third
    D. second

  3. There is a universally agreed upon protocol for treating cracked teeth. This is true for both symptomatic and asymptomatic cracks.

    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. Enamel and dentin cracks are classified according to the

    A. severity of symptoms.
    B. location in the mouth.
    C. direction of the crack.
    D. progression over time.

  5. ____________ percent of dentists studied recommended removing fillings as part of cracked tooth therapy.

    A. Seventy-three
    B. Seventy-five
    C. Eighty-eight
    D. Ninety-two

  6. The technique used for detecting vertical enamel cracks was

    A. methylene blue dye.
    B. bite stick.
    C. methyl red dye.
    D. water refraction.

  7. Asymptomatic cracks can be evaluated by all of the following except one. Which is the exception?

    A. transillumination
    B. chewing ice
    C. staining with dyes
    D. microscopy

  8. A high-risk crack includes

    A. a brown halo.
    B. wedge-shaped ditching.
    C. intersecting lines.
    D. veering off anatomic grooves.

  9. External fracture lines that are detectable with an explorer are an indicator of high-risk cracks. This is because dramatic enamel cracks are strong indicators of pathology.

    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.

  10. Occlusal coverage is indicated in all of the following cases except one. Which is the exception?

    A. One cusp is cracked.
    B. Two or more cusps are cracked.
    C. There are enamel and dentin cracks.
    D. There are enamel cracks only.

  11. Initial treatment of cracked tooth syndrome includes

    A. filling the cracked area with composite.
    B. root canal therapy.
    C. occlusal adjustment.
    D. a full coverage crown.

  12. Direct composite restorations were found to eliminate cracked tooth symptoms in _____% of cases.

    A. 90
    B. 80
    C. 77
    D. 75

  13. Techniques in crown prep design that minimize external forces include all of the following except one. Which is the exception?

    A. apical crown margins
    B. beveling cusp tips
    C. internal pulp caps
    D. minimal wall reduction

  14. One of the most common etiologic factors in teeth cracks is

    A. traumatic occlusal forces.
    B. aging amalgam restorations.
    C. the age of the individual.
    D. recurrent decay.

  15. For oblique dentin cracks, the most recommended course of treatment was

    A. indirect occlusal coverage.
    B. direct bonded composite.
    C. occlusal adjustment.
    D. full crown restoration.

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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