When curing composite resin with light, how should the light source be positioned relative to the restoration?

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It must be kept just a few millimeters away from the restorationNo protective measures are necessary during its operationIt can cure composite material up to 5 millimeters in thicknessThe device uses fiber optic technology

Explanation

The light source should be maintained at a short distance—typically a few millimeters—from the composite restoration to ensure effective curing. This positioning optimizes polymerization. Protective measures are generally recommended when using curing lights. Additionally, curing depth is usually less than 5 millimeters, and while some devices use fiber optics, this is not a defining characteristic for all curing lights.