Research Article

Fracture Resistance of Premolars Restored by Various Types and Placement Techniques of Resin Composites

Table 1

Chemical composition and manufacture of bonding agent and restorative materials used in this study.

MaterialCompositionManufacture

Bonding agentSingle bondBis-GMA, HEMA, dimethacrylates, polyalkenoic copolymer, ethanol, water, and photoinitiator3 M ESPE St. Paul, MN, USA
Filtek P60Silane-treated ceramic 61% V, BISEMA6, UDMA, BISGMA, and TEGDM3 M ESPE dental products St. Paul, MN, USA
Restorative materialsNulite FBis-GMA and microrod filler 71% V (fiber-reinforced composite)BDT-biodental technologies Pty limited, Australia
Fiber insertRibbond-THM (polyethylene fiber)Ribbond-THM, Seattle, WA, USA

Bis-GMA: bisphenol-A-glycidyl methacrylate, HEMA: hydroxyethyl methacrylate, BISEMA6: bisphenol A polyethylene glycol diether dimethacrylate, UDMA: diurethane dimethacrylate, and TEGDMA: triethylene glycol dimethacrylate.