Kıvanç YAMANEL, İsmail BALTACIOĞLU, Yıldırım Hakan BAĞIŞ

Opak renkli kompozit rezinin ışık geçirgenliğine etkisi

Bu çalışmanın amacı, bir üniversal hibrid kompozit Charisma [Heraeus-Kulzer, Germany] ve üç nanofil kompozit rezinin Filtek Supreme XT [3M ESPE, USA, Clearfil Majesty Esthetic [Kuraray Dental, Japan ve Grandio [Voco, Germany opak ve opak olmayan renklerinin ışık geçirgenliklerini %T değerlendirmektir. Bu amaç için, disk şeklinde, 1 ve 2 mm kalınlığında örnekler, paslanmaz çelik kalıp kullanılarak hazırlandı. Hazırlanan kompozit disklere gelen ve kompozit örnekten geçen ışık şiddetleri Radiometer Demetron P/N 10503, Kerr Co., USA cihazı kullanılarak ölçüldü. Daha sonra örneklerin ışık geçirgenlik değerleri hesaplandı. Araştırma sonuçlarımız, opak renklerin ışık geçirgenlik değerlerinin, opak olmayan renklerden daha düşük olduğunu göstermiştir. Tüm renklerin 1 mm’lik örnekleri, 2 mm’lik örneklerinden daha fazla ışık geçirgenliğine sahiptir. Filtek Supreme XT materyalinin opak renginin ışık geçirgenliği, diğer kompozit örneklerinin ışık geçirgenliklerinden daha düşüktür. Her iki kalınlık için en yüksek ışık geçirgenlik değerleri, Filtek Supreme XT’nin opak olmayan rengi ile elde edilmiştir.

Anahtar Kelimeler:

Işık geçirgenliği, kompozit rezin, opak renk

Effect of Opaque Shade Composite Resin for Light Transmission

The purpose of the study was to evaluate the degree of light transmittance %T of opaque and non-opaque shades of an universal hybrid Charisma [Heraeus-Kulzer, Germany] and three nanofill composites Filtek Supreme XT [3M ESPE, USA], Clearfil Majesty Esthetic [Kuraray Dental, Japan] and Grandio [Voco, Germany] . For this aim disc-shaped samples with 1 and 2 mm thickness were prepared using stainless steel mold. Incident and transmitted light intensities of specimens were measured using a radiometer Demetron P/N 10503, Kerr Co., USA . Then light transmittances of specimens were calculated. Results of the study showed that light transmittance of opaque shades were lower than that of nonopaque shades. 1 mm specimens transmitted more light than 2 mm specimens for all colors. Light transmission value of opaque shade Filtek Supreme XT was lower than that of the other composite specimens. The highest light transmission values were obtained with non-opaque shade of Filtek Supreme XT for both thicknesses

Keywords:

Light transmission, composite resin, opaque shade,

PDF

___

Joiner A. Tooth colour: a review of the literature. J Dent 2004; 32: 3–12.
Johnstone WM, Reisbick MH. Color and translucency changes during and after curing of esthetic restorative materials. Dent Mater 1997; 13: 89-97.
Ikeda T, Murata Y, Sano H. Translucency of opaque-shade resin composites. Am J Dent 2004; 17:127-30.
Bağış YH, Yamanel K. Işık ile polimerize olan kompozit rezinin renk farklılıklarının absorbsiyon katsayılarına etkisi. A Ü Diş Hek Fak Derg 2000; 27:151-7.
dos Santos GB, Monte Alto RV, Sampaio Filhoa HR, da Silva EM, Fellows CE. Light transmission on dental resin composites. Dent Mater 2008; 24: 571-6.
Arimoto A, Nakajima M, Hosaka K, Nishimura K, Ikeda M, Foxton RM, Tagami J. Translucency, opalescence and light transmission characteristics of light-cured resin composites. Dent Mater. 2010; 26: 1090-7.
Azzopardi N, Moharamzadeh K, Wood DJ, Martin N, van Noort R. Effect of resin matrix composition on the translucency of experimental dental composite resins. Dent Mater. 2009 ;25: 1564-8.
Hanks CT, Strawn JC, Wataha JC, Craig RG. Cytotoxic effects of resin componentson cultured mammalian fibroblasts. J Dent Res 1991; 70: 1450-5.
Gerzina TM, Hume WR. Effect of dentine on release of TEGDMA from resin composite in vitro. J Oral Rehabil 1994; 21: 463-9.
Masotti AS, Onofrio AB, Conceicao EN, Spohr AM. UV–vis spectrophotometric direct transmittance analysis of composite resins. Dent Mater 2007;23:724–30.
Rueggeberg FA, Caughman WF, Curtis JW. Effect of light intensity and exposure duration on cure of resin composite. Oper Dent 1994; 19: 26-30.
Curtis JW, Rueggeberg FA, Lee AJ. Curing efficiency of turbo tip. General Dent. 1995; 43: 444-50.
Emami N, Sjödahl M, Soderhölm K-JM. How filler properties, filler fraction, sample thickness and light source affect light attenuation in particulate filled resin composites. Dent Mater 2005; 21: 721–30.
Campbell PM, Johnst WM, O’Brien WJ. Light scattering and gloss of an experimental quartz- filled composite. J Dent Res 1986; 65: 892–4.
Lee YK. Influence of filler on the difference between the transmitted and reflected colors of experimental resin composites. Dent Mater 2008; 24: 1243–7.
Lim YK, Lee YK, Lim BS, Rhee SH, Yang HC. Influence of filler distribution on the color parameters of experimental resin composites. Dent Mater 2008; 24: 67–73.
Arikawa H, Kanie T, Fujii K, Takahashi H, Ban S. Effect of filler properties in composite resins on light transmittance characteristics and color. Dent Mater J 2007; 26: 38–44.
McCabe JF, Carrick TE. Output from visible- light activation units and depth of cure of light- activated composites. J Dent Res 1989; 68: 1534-40.
Ferracane JL, Aday P, Matsumoto H, Marker VA. Relationship between shade and depth of cure for light activated dental resin composites. Dent Mater 1986; 2: 80-6.
Kawaguchi M, Fukushima T, Miyazaki K. The relationship between cure depth and transmission coefficient of visible-light-activated resin composites. J Dent Res 1994; 73: 513-6.