Light transmission through lithium disilicate and high-translucency zirconia: spectral behavior of four curing units and implications for resin luting agent polymerization

This dataset contains raw experimental data supporting the manuscript entitled "Light transmission through lithium disilicate and high-translucency zirconia: spectral behavior of four curing units and implications for resin luting agent polymerization". The study evaluated the influence of ceramic type (lithium disilicate vs. high-translucency zirconia), thickness (1.0 and 1.5 mm), and light-curing unit (LCU) characteristics on the polymerization efficiency of a dual-cure resin cement (Variolink Esthetic DC). The dataset includes:- Spectral irradiance and radiant exposure values obtained using an integrating sphere across four LCUs.- Vickers microhardness (HV) measurements for resin cement specimens.- Raman spectroscopy data representing the C=C/1608 cm⁻¹ intensity ratio. All measurements were performed under standardized laboratory conditions. Data are provided in CSV format and include sample identifiers, ceramic type and thickness, LCU used, and corresponding raw values. These data support the statistical analyses and conclusions presented in the manuscript and are shared to promote transparency, reproducibility, and reuse in dental materials research.