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


METHODS
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.


RESULTS
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.


CONCLUSIONS
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.
Lin
Yi-Na
YN
Department of Dental Materials, West China School of Stomatology, Sichuan University, Chengdu 610041, China.
Wang
Ke
K
Jia
Fang
F
Liu
Xiao-Qing
XQ
D001713:Biphenyl Compounds / Q000737:chemistry*; D003188:Composite Resins / Q000737:chemistry*; D003764:Dental Materials / Q000737:chemistry*; D006847:Hydrocarbons, Iodinated / Q000737:chemistry*; D055115:Light-Curing of Dental Adhesives; D009861:Onium Compounds / Q000737:chemistry*
D001713:Biphenyl Compounds; D003188:Composite Resins; D003764:Dental Materials; D006847:Hydrocarbons, Iodinated; D009861:Onium Compounds; C031291:diphenyliodonium