Table 1:

Composite resins used in the study according to the information provided by the manufacturers

Material (Manufacturer)	Type	Matrix	Average particle size	Filler type	Filler loading vol%	Filler loading wt%	Shade	Batch number
Aelite Aesthetic Enamel (BISCO, Schaumburg, USA)	Nanohybrid composite	Ethoxylated Bis-GMA, TEGDMA	0.5–2μm 0.05μm	Glass filler, amorphous silica	53	73	A2	1600004511
Aelite All Purpose Body (BISCO, Schaumburg, USA)	Microhybrid composite	Ethoxylated Bis-GMA, TEGDMA	0.04–0.7μm	Glass filler, amorphous silica	55	76	A2	1600004474
Grandio (Voco, Cuxhaven, Germany)	Nanohybrid composite	Bis-GMA, dimethacrylate, UDMA, TEGDMA	1μm, 20–50nm	Ba-Al-borosilicate glass filler, nanofiller (SiO2)	71.4	87	A2	1536078
Polofil supra (Voco, Cuxhaven, Germany)	Microhybrid composite	Bis-GMA, TEGDMA, UDMA	0.04–5μm	Glass filler, silica	60	76.5	A2	1408140