Question 74 · LDEK · Restorative treatment of primary teeth
In the case of planning a glass-ionomer restoration in a small cavity, class II by Black in a milk tooth:
- A. preparation should extend occlusally and include sound fissures.
- B. outline of the preparation should correspond strictly with the size of caries.
- C. retention should be increased by preparation of the so called “dove tail” on the occlusal surface.
- D. margins of preparation should be beveled in order to increase adhesion to enamel.
- E. B and C are correct.
Hint
Glass ionomer bonds chemically to tooth tissue, so consider whether mechanical retention or extension is needed.
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