Distinguishing and diagnosing contemporary and conventional features of dental erosion

Self-Instruction Exercise No. 350
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Exercise No. 350
Subject Code: 730
Oral Medicine, Oral Diagnosis, Oral Pathology

The 15 questions for this exercise are based on the article, Distinguishing and diagnosing contemporary and conventional features of dental erosion, on pages 46-52. This exercise was developed by Thomas C. Johnson, DMD, MAGD, in association with the General Dentistry Self-Instruction committee.

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

  • recognize and identify fundamental clinical characteristics of contemporary erosion lesions;
  • understand the association of erosion with the modern diet; and
  • understand the importance of a complete exam, the patient’s systemic health profile, dental health, dietary history, and oral hygiene habits.

Answers for this exercise must be received by April 30, 2015.
  1. What is the single most prominent etiology of dental erosion among younger generations?

    A. stomach acids
    B. acidulated carbonated drinks
    C. sweet white wines
    D. citrus fruit and juices

  2. What is the single most prominent etiology of dental erosion among the senior population?

    A. stomach acids
    B. acidulated carbonated drinks
    C. red wines
    D. citrus fruit and juices

  3. All of the following are taken into account by the conventional definition of dental erosion except one. Which is the exception?

    A. gastroesophageal reflux disease
    B. bulimic purge
    C. diverse dietary acids
    D. sucking slices of lemon

  4. All of the following features of mechanical wear defects are shared with conventional erosion lesions except one. Which is the exception?

    A. border
    B. hardness
    C. texture
    D. color

  5. Perimolysis is defined as erosion from

    A. betel leaves.
    B. acidulated drinks.
    C. swimming pool acidity.
    D. regurgitation.

  6. The color changes associated with Type I erosion lesions can be mistaken for dental caries, dental fluorosis, and/or heavy tetracycline staining. Contemporary Types II and III erosion lesions demonstrate uniform topographic changes.

    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. The contemporary Type I erosion lesion is described by the definition of conventional erosion lesions. Contemporary Types II and III erosion lesions differ from Type I by their color, topography, and surface texture.

    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. One clinical difference in appearance of Type II and Type III erosion lesions is a difference in color. The difference in color is due to the enzymatic browning of dentin.

    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. The different clinical appearances of Type II and Type III erosion lesions may be best explained by which of the following?

    A. aggressive toothbrushing
    B. exposure to acidic beverages
    C. high fiber diet
    D. excessive sugar intake

  10. The lightly discolored dental tissue associated with Type II erosion lesions is caused by which of the following?

    A. extrinsic staining
    B. Maillard browning reaction
    C. glycation
    D. enzymatic glycosylation

  11. The darkly discolored dental tissue associated with Type III erosion lesions is caused by which of the following?

    A. extrinsic staining
    B. Maillard browning reaction
    C. intrinsic staining
    D. enzymatic glycosylation

  12. Patients presenting with Type I erosion lesions have all of the following in common except one. Which is the exception?

    A. consumption of acidic beverages
    B. health conscious
    C. high carbohydrate diet
    D. immaculate oral hygiene

  13. All of the following describe abfraction lesions except one. Which is the exception?

    A. combination lesion
    B. cervical segment of the coronal enamel
    C. lightly discolored dental tissues
    D. sign of occlusal disease

  14. All of the following describe toothbrush abrasion lesions except one. Which is the exception?

    A. root surface lesion
    B. molar involvement
    C. natural tooth color
    D. gingival recession

  15. Radiographs can help with diagnosis. Radiographic imaging of __________ demonstrate(s) __________.

    A. calculus; radiolucency
    B. cervical, opaque, lightly discolored dental tissue lesions; radiolucency
    C. erosion lesions; diffuse borders
    D. caries; well defined borders

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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