Question 309 · LDEK · Restorative treatment of immature permanent teeth
ICON is used in following cases of carious lesions:
1) white spots on the labial enamel surface in permanent teeth, when during probing there is a slight porosity of the enamel at the site of discoloration;
2) surpassing the enamel-dentine margin and extending to 1/3 of the external layer of dentine;
3) radiological classification E1, which means a demineralization extending to ½ thickness of enamel;
4) radiological classification E2, which means that the lesion covers full thickness of the enamel up to DEJ;
5) radiological classification D1; when demineralization covers all of the enamel and extends to 1/3 of the external layer of dentine.
Correct answer is:
2) surpassing the enamel-dentine margin and extending to 1/3 of the external layer of dentine;
3) radiological classification E1, which means a demineralization extending to ½ thickness of enamel;
4) radiological classification E2, which means that the lesion covers full thickness of the enamel up to DEJ;
5) radiological classification D1; when demineralization covers all of the enamel and extends to 1/3 of the external layer of dentine.
Correct answer is:
- A. 1,2.
- B. 1,2,3.
- C. 1,2,3,4.
- D. 2,3,4.
- E. all of the above mentioned.
Hint
Resin infiltration targets non-cavitated lesions; check how deep a proximal lesion may extend radiographically while the surface stays intact.
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