Dent. J., Volume 12, Issue 6 (June 2024) – 43 articles
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Bulk fill composites allow applications in layers of 4–5 mm. Different layering and polymerization techniques can be used depending on the polymerization shrinkage of the materials. The introduction of different light curing modes, the intensity and orientation of light during light curing affect the shrinkage of the material. This study aimed to identify the most favorable curing mode and layering strategy for bulk fill dental composites to reduce shrinkage stress and cuspal deflection. Measurement of cuspal tip deflection is one of the methods used to test internal stresses resulting from polymerization shrinkage. Simulated aluminum cavities were used to test different curing modes and two types of layering. The light curing mode showed a greater effect on material shrinkage than the layering technique. View this paper
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