ArticleBiomaterial investigations in dentistry2026
The impact of delayed placement and resin matrix composition on adhesion between layers of resin composites.
Article in Biomaterial investigations in dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: To investigate the effect of delay time in resin composite placement and resin matrix composition on interlayer adhesion between two successive composite layers. Materials and methods: Three experimental resin composites were prepared by mixing 79 wt.% particulate filler with 21 wt.% dimethacrylate-based resin matrices (urethane dimethacrylate/triethylene glycol dimethacrylate [UDMA/TEGDMA]; ethoxylated bisphenol-A-dimethacrylate/urethane dimethacrylate/triethylene glycol dimethacrylate [Bis-EMA/UDMA/TEGDMA]; bisphenol A-glycidyl methacrylate/triethylene glycol dimethacrylate [Bis-GMA/TEGDMA]). Fifteen groups of specimens were prepared ( Results: SBS values ranged from 10.3 ±2.4 to 24.5 ±3.0 MPa. Both placement delay time and resin matrix composition significantly affected SBS ( Conclusion: Both incremental application timing and resin matrix composition significantly influenced composite interlayer adhesion. Short delays (10-60 minutes) enhanced interlayer adhesion, whereas prolonged delays (24-72 hours) resulted in a reduction in interlayer adhesion.
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