Long-Term Fluoride Exchanges at Restoration Surfaces and Effects on Surface Mechanical Properties

Table 1

Description of analyzed materials.

Material	Key contents	Manufacturer
Tetric EvoCeram; Lot L24180	Filler particles consisting of barium glass, ytterbium trifluoride, mixed oxide and prepolymer, and unspecified dimethacrylate monomers (17 wt%)	Ivoclar Vivadent, Schaan, Liechtenstein
Gradia Direct X; Lot 0805142	Fluoroaluminosilicate glass, prepolymerised filler, silica, UDMA, and unspecified dimethacrylate comonomers (23 wt%).	GC Co., Tokyo, Japan
Beautifil II; Lot 060854	S-PRG glass filler, fluoride containing fluoro-boro-alumino silicate glass filler particles, TEGDMA, and Bis-GMA (17 wt%)	Shofu Inc., Kyoto, Japan
Fuji IX Extra; Lot 0804151	Fluoroaluminosilicate glass, copolymer of acrylic and maleic acid, tartaric acid, and water	GC Co., Tokyo, Japan

S-PRG filler: surface reaction-type prereacted glass ionomer; Bis-GMA: 2,2-bis [4-(2^′-hydroxy-3^′-methacryloxypropoxy)phenyl]propane; TEGDMA: triethylene glycol dimethacrylate; UDMA: urethane dimethacrylate.