Browse > Article
http://dx.doi.org/10.5395/JKACD.2011.36.4.313

Optimal combination of 3-component photoinitiation system to increase the degree of conversion of resin monomers  

Kim, Chang-Gyu (Department of Conservative Dentistry, Dankook University College of Dentistry, Institute of Dental Science)
Moon, Ho-Jin (Department of Conservative Dentistry, Dankook University College of Dentistry, Institute of Dental Science)
Shin, Dong-Hoon (Department of Conservative Dentistry, Dankook University College of Dentistry, Institute of Dental Science)
Publication Information
Restorative Dentistry and Endodontics / v.36, no.4, 2011 , pp. 313-323 More about this Journal
Abstract
Objectives: This study investigated the optimal combination of 3-component photoinitiation system, consisting of CQ, p-octyloxy-phenyl-phenyl iodonium hexafluoroantimonate (OPPI), and 2-dimethylaminoethyl methacrylate (DMAEMA) to increase the degree of conversion of resin monomers, and analyze the effect of the ratio of the photoinitiator to the co-initiator. Materials and Methods: Each photoinitiators (CQ and OPP) and co-initiator (DMAEMA) were mixed in three levels with 0.2 wt.% (low concentration, L), 1.0 wt.% (medium concentration, M), and 2.0 wt.% (high concentration, H). A total of nine groups using the Taguchi method were tested according to the following proportion of components in the photoinitiator system: LLL, LMM, LHH, MLM, MMH, MHL, HLH, HML, HHM. Each monomer was polymerized using a quartz-tungsten-halogen curing unit (Demetron 400, USA) for 5, 20, 40, 60, 300 sec and the degree of conversion (DC) was determined at each exposure time using FTIR. Results: Significant differences were found for DC values in groups. MMH group and HHM group exhibited greater initial DC than the others. No significant difference was found with the ratio of the photoinitiators (CQ, OPPI) to the co-initiator (DMAEMA). The concentrations of CQ didn't affect the DC values, but those of OPPI did strongly. Conclusions: MMH and HHM groups seem to be best ones to get increased DC. MMH group is indicated for bright, translucent color and HHM group is good for dark, opaque colored-resin.
Keywords
Camphoroquinone; Concentration; Degree of conversion; DMAEMA; OPPI; Photoinitiator;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Dewaele M, Truffier-Boutry D, Leloup G, Devaux J. Volume contraction in photocured dental resins: the shrinkage-conversion relationship revised. Dent Mater 2006;22:359-365.   DOI   ScienceOn
2 Silikas N, Eliades G, Watts DC. Light intensity effects on resin-composite degree of conversion and shrinkage strain. Dent Mater 2000;16:292-296.   DOI   ScienceOn
3 Shin DH, H. Rawls RL. Degree of conversion and color stability of the light curing resin with new photoinitiator systems. Dent Mater 2009;25:1030-1038.   DOI   ScienceOn
4 Brandt WC, Schneider LF, Frollini E, Correr-Sobrinho L, Sinhoreti MA. Effect of different photo-initiators and light curing units on degree of conversion of composites. Braz Oral Res 2010;24:263-270.   DOI   ScienceOn
5 Yoshida K, Greener EH. Effect of photoinitiator on degree of conversion of unfilled light-cured resin. J Dent 1994;22:296-299.   DOI   ScienceOn
6 Schneider LF, Consani S, Sakaguchi RL, Ferracane JL. Alternative photoinitiator system reduces the rate of stress development without compromising the final properties of the dental composite. Dent Mater 2009;25:566-572.   DOI   ScienceOn
7 Lin CL, Chang WJ, Lin YS, Chang YH, Lin YF. Evaluation of the relative contributions of multi-factors in an adhesive MOD restoration using FEA and the Taguchi method. Dent Mater 2009;25:1073-1081.   DOI   ScienceOn
8 Park HJ, Son SA, Hur B, Kim HC, Kwon YH, Park JK. Effect of the difference in spectral outputs of the single and dual-peak LEDs on the microhardness and the color stability of resin composites. J Kor Acad Cons Dent 2011;36:108-113.   과학기술학회마을   DOI   ScienceOn
9 Peutzfeldt A, Asmussen E. In vitro wear, hardness, and conversion of diacetyl-containing and propanal-containing resin materials. Dent Mater 1996;12:103-108.   DOI   ScienceOn
10 Brandt WC, de Moraes RR, Correr-Sobrinho L, Sinhoreti MA, Consani S. Effect of different photo-activation methods on push out force, hardness and cross-link density of resin composite restorations. Dent Mater 2008;24:846-850.   DOI   ScienceOn
11 Carmichael AJ, Gibson JJ, Walls AW. Allergic contact dermatitis to bisphenol-A-glycidyldimethacrylate (Bis-GMA) dental resin associated with sensitivity to epoxy resin. Br Dent J 1997;183:297-298.   DOI   ScienceOn
12 Dart EC, Nemcek J. Photopolymerisable composition. Japanese Patent No. Toku-Kou-Sho 54-10986 (1979).
13 Fujisawa S, Kadoma Y, Masuhara E. Effects of photoinitiators for the visible-light resin system on hemolysis of dog erythrocytes and lipid peroxidation of their components. J Dent Res 1986;65:1186-1190.   DOI   ScienceOn
14 Arikawa H, Takahashi H, Kanie T, Ban S. Effect of various visible light photoinitiators on the polymerization and color of light-activated resin. Dent Mater J 2009;28:454-460.   DOI
15 Neumann MG, Schmitt CC, Ferreira GC, Correa IC. The initiating radical yields and the efficiency of polymerization for various dental photoinitiators excited by different light curing units. Dent Mater 2006;22:576-584.   DOI   ScienceOn
16 Brackett MG, Brackett WW, Browning WD, Rueggeberg FA. The effect of light curing source on the residual yellowing of resin composites. Oper Dent 2007;32:443-450.   DOI
17 Bowen RL, Cobb EN, Rapson JE. Adhesive bonding of various materials to hard tooth tissues: Improvement in bond strength to dentin. J Dent Res 1982;61:1070-1076.   DOI
18 Park YJ, Chae KH, Rawls HR. Development of a new photoinitiation system for dental light-cure composite resins. Dent Mater 1999;15:120-127.   DOI   ScienceOn
19 Tay FR, King NM, Suh BI, Pashley DH. Effect of delayed activation of light-curing resin composites on bonding of all in-one adhesives. J Adhes Dent 2001;3:207-225.
20 Imazato S, Tarumi H, Kobayashi K, Hiraguri H, Oda K, Tsuchitani Y. Relationship between the degree of conversion and internal discoloration of light-activated composite. Dent Mater J 1995;14:23-30.   DOI   ScienceOn
21 Guo X, Wang Y, Spencer P, Ye Q, Yao X. Effects of water content and initiator composition on photopolymerization of a model BisGMA/HEMA resin. Dent Mater 2008;24:824-831.   DOI   ScienceOn
22 Asmussen E, Peutzfeldt A. Influence of UEDMA, BisGMA and TEGDMA on selected mechanical properties of experimental resin composites. Dent Mater 1998;14:51-56.   DOI   ScienceOn
23 Lovell LG, Stansbury JW, Syrpes DC, Bowman CN. Effects of composition and reactivity on the reaction kinetics of dimethacrylate/dimethacrylate copolymerizations. Macromolecules 1999;32:3913-3921.   DOI   ScienceOn
24 Sideridou I, Tserki V, Papanastasiou G. Effect of chemical structure on degree of conversion in light-cured dimethacrylate-based dental resins. Biomaterials 2002;23:1819-1829.   DOI   ScienceOn
25 Angiolini L, Caretti D, Salatelli E. Synthesis and photoinitiation activity of radical polymeric photoinitiators bearing side-chain camphoroquinone moieties. Macromol Chem Phys 2000;201:2646-2653.   DOI   ScienceOn
26 Atai M, Watts DC. A new kinetic model for the photopolymerization shrinkage-strain of dental composites and resins. Dent Mater 2006;22:1-7.   DOI   ScienceOn
27 Stansbury JW. Curing dental resins and composites by photopolymerization. J Esthet Dent 2000;12:300-308.   DOI
28 Kim JH, Shin DH. Microleakage of the experimental composite resin with three component photoinitiator systems. J Kor Acad Cons Dent 2009;34:333-339.   과학기술학회마을   DOI   ScienceOn
29 Dart EC, Nemcek J. Photopolymerisable composition. Great Britain Patent Specification No. 1408265 (1971).
30 Ferracane JL, Greener EH. Fourier transform infrared analysis of degree of polymerization in unfilled resins-methods comparison. J Dent Res 1984;8:1093-1095.
31 Alvim HH, Alecio AC, Vasconcellos WA, Furlan M, de Oliveira JE, Saad JRC. Analysis of camphoroquinone in composite resins as a function of shade. Dent Mater 2007;23:1245-1249.   DOI   ScienceOn
32 De Raaff AM, Marino TL, Neckers DC. Optimized cure efficiency using a fluorone visible light photoinitiator and a novel charge transfer: complex initiating system. In: RAI/TECH Conference. 1996.
33 He JH, Mendoza VS. Synthesis and study of a novel hybrid UV photoinitiator: p-benzoyldiphenyliodonium hexafluorophosphate (PhCOPhl + PhPF). J Polym Sci A: Polym Chem 1996;34:2809-2816.   DOI   ScienceOn
34 Schneider LF, Cavalcante LM, Consani S, Ferracane JL. Effect of co-initoator ratio on the polymer properties of experimental resin composites formulated with camphoroquinone and phenyl-propanedione. Dent Mater 2009;25:369-375.   DOI   ScienceOn
35 Musanje L, Ferracane JL, Sakaguchi RL. Determination of the optimal photoinitiator cencentraction in dental composites based on essential material properties. Dent Mater 2009;25:994-1000.   DOI   ScienceOn
36 Neumann MG, Miranda WG Jr, Schmitt CC, Rueggeberg FA, Correa IC. Molar extinction coefficients and the photon absorption efficiency of dental photoinitiators and light curing units. J Dent 2005;33:525-532   DOI   ScienceOn