Effect of Cavity Configuration (C Factor) on the Marginal Adaptation of Low-Shrinking Composite: A Comparative Ex Vivo Study

Table 1

Specification, constituent, and manufacturers for adhesives and composite resins used in the study.

Material	Specification	Constituent	Manufacturer
Filtek Silorane posterior restorative	Visible light activated silorane based restorative composite	(i) Silorane resin	3M ESPE Dental Product St. Paul, MN, USA
		(ii) Initiating system: camphorquinone, iodonium salt, electron donor
		(iii) Fillers: Quartz filler
		(iv) Yttrium fluoride with Average Particle Size (μm) 0.47 Filler Load by Weight (%) 76%
		(v) Stabilizers
		(vi) Pigments
Silorane Adhesive Bond System	Silorane Self-etch Primer:	Phosphorylated methacrylates	3M ESPE Dental Products St. Paul, MN, USA
		(i) Vitrebond copolymer
		(ii) BisGMA
		(iii) HEMA
		(iv) Water
		(v) Ethanol
		(vi) Silane-treated silica filler
		(vii) Initiators
		(viii) Stabilizers
	Silorane Adhesive Bond:	(i) Hydrophobic dimethacrylate	3M ESPE Dental Products St. Paul, MN, USA
		(ii) Phosphorylated methacrylates
		(iii) TEGDMA
		(iv) Silane-treated silica filler
		(v) Initiators
		(vi) Stabilizer
Filtek Z250	Visible light activated methacrylate-based restorative composite	(i) The filler is zirconia/silica	3M ESPE Dental Products St. Paul, MN, USA
		(ii) The inorganic filler loading is 60% by volume “without silane treatment” with particle size range of 0.01 and 3.5 microns.
		(iii) It contains Bis-GMA and TEGDMA resins.
Adper Prompt L-Pop	Self-etch one-step bonding agent	Liquid 1 (red blister):	3M ESPE Dental Products St. Paul, MN, USA
		(i) Methacrylated phosphoric esters
		(ii)Bis-GMA
		(iii) Initiators based on camphorquinone
		(iv) Stabilizers
		Liquid 2 (yellow blister):
		(i) Water
		(ii) 2-Hydroxyethyl methacrylate (HEMA)
		(iii) Polyalkenoic acid
		(iv) Stabilizers