Question 92 · LDEK · Restorations — technique and errors
What distance should be kept between the tip of a light-curing unit and a resin composite restoration surface to ensure effective light curing of the material?
- A. 1-2 mm.
- B. more than 6 mm.
- C. 1-2 cm.
- D. recommended distance depends on the fiberoptic bundle surface.
- E. light-curing unit distance from the surface doesn’t matter.
Hint
Light intensity falls sharply with distance from the guide tip; consider how close the tip should be without touching the material.
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