Clinical Dentistry and Research, cilt.48, sa.3, ss.116-124, 2024 (Hakemli Dergi)
Background and Aim: The aim of this in vitro study is to compare the flexural strength, modulus of elasticity, degree of conversion, and surface characteristics of recently introduced dental composites with the composites widely used in clinical practice. Materials and Methods: Pergamon, Parion, and Parion-Flow composites (Dentac) were compared with Ruby (Incidental), Charisma Classic (Kulzer), and Z250 (3M). Flexural strength (FS) and modulus of elasticity (EM) were measured using 10 samples (25x2x2 mm), and three cylindrical samples (8x2 mm) were used for Fourier transform infrared spectroscopy (FTIR) (Jasco Atr Pro-One). A Valo (Ultradent) light-curing device was used for polymerization at 1000 mW/cm2 power intensity. Samples were examined with a scanning electron microscope (SEM) (Zeiss EVO MA10). The Kruskal–Wallis test, Dunn’s test, Tamhane’s T2 test, and one-way ANOVA analysis were used for statistical analysis (significance level p<0.05). Results: The highest Fs was obtained with Z250 (142.72 MPa) and the lowest with Parion Flow (77.10 MPa) (p<0.001). The EM values of Z250 (5.3 GPa) were significantly higher than those of Parion Flow (1.64 GPa) (p<0.001). The highest degree of conversion was obtained with Pergamon (86.50) and the lowest with Charisma (50.54) (p<0.001). Surface structure differed depending on the filler and matrix type under SEM examination. Conclusion: FS, EM, and conversion degrees of Parion, Pergamon, and Ruby composites fell within the clinically acceptable ranges.