[Effects of diaryliodonium on the properties of light-curing composite resin].

To test the effects of two kinds of diaryliodonium on the degree of conversion (DC), the compressive strength (CS) and the cure depth (CD) of the light-curing composite resin. BisS-GMA was used as reisin matrix, with TEGDMA as diluent and SiO2 as inorganic filler. CQ, DMAEMA and two different kinds of diaryliodonium (diphenyliodonium hexafluorophosphate and bis (p-tolyl) iodonium hexafluorophosphate) were used as photoinitiator, respectively. The DC, CS, CD were measured and compared by the FTIR spectroscopy, and the tensile strength of machine et al. Diaryliodonium led to greater DC, CS, and CD of the light-curing composite resin. The DC, CS, and CD of the light-curing composite resin increased more with bis (p-tolyl) iodonium hexafluorophosphate than with diphenyliodonium hexafluorophosphate. Diaryliodonium can improve the DC, CS, and CD properties of light-curing composite resin. Bis (p-tolyl) iodonium hexafluorophosphate has better performance than diphenyliodonium hexafluorophosphate in improving photosensibility and solubility of the photoinitiator system.