The effects of different shades of resin luting cement on the color of ceramic veneers

Abstract

The purpose of this study was to quantitatively evaluate the effects of different shades of light-polymerized resin cement on the color of two different thicknesses (0.5 mm and 0.7 mm) of three different ceramic materials (Esthetic, e.max, and ZirPress). A spectrophotometer (Color Eye 7000A -CIE (L*a*b*) was used to measure the color of specimens on the control substrate without cement, and then on (Translucent, White Opaque, B0.5, A1, and A3 of RelyX™ Veneer cement). The mean values of color difference (∆E) were higher for Esthetic, followed by ZirPress, with the lowest values for e.max. The mean values of ∆E decreased when the thickness of ceramic increased from 0.5 mm to 0.7 mm. It was observed that the White Opaque had significantly increased ∆E values when compared with (TR, B0.5, A1, and A3), whereas no significant difference between B0.5 and TR, and between B0.5 and A3.

Influence of shade, curing mode, and aging on the color stability of resin cements

“…After 30 and 90 days of laboratory aging, ∆E values were also higher than acceptable. These results are related to the used method, because the uncovered resin disks used in this study, similar to those used in previous reported ageing tests [20][21][22] , have increased exposure to potentially damaging environmental factors. .…”

“…Alternatively, environmental damage can cause a color change by affecting the retention and/or stability of pigments and other additives in the polymer formulations. The aesthetic performance of porcelain laminates can be affected by the color of the resin cements used to bond them to teeth 22 . The current results indicate that lighter resin cements presented significantly more color change after aging.…”

Factors Affecting the Final Colour of Laminate Veneers: Review

“…Her sistemin kimyasal yapısı o sisteme özgü bir optik özellik oluşturmaktadır. 8 Örnek olarak; lösit içerikli bir cam seramik olan IPS Empress sisteminin (IvoclarVivadent, Schaan, Liechtenstein) başlıca bileşenleri %63 silisyum dioksit ve %19 alüminyum oksit içeren feldspatik seramik ve tetragonal lösit kristalleridir. Lösit kristalleri, lösit ile güçlendirilmiş feldspatik cam seramik hacminin %30-40'ını kapsamaktadır ve 1-5 μm boyutlarındadır.…”

The influence of colored zirconia on the optical properties of all-ceramic restorations

“…Its opaque nature and masking ability have demonstrated that TZP restorations require less tooth reduction than traditional feldspathic porcelain to sufficiently mask undesirable tooth colors [11][12][13] . The optical properties of ceramic restorations could be influenced by thickness, surface texture, brands, batches, and number of firings of the porcelain, in addition to properties of the luting agent and abutment 9,[11][12][13][14][15][16][17][18][19][20][21] . Light transmittance and reflectance have important roles in the aesthetics of restorations and translucency is a property that is dependent on light scattering and absorbing characteristics as it contributes to the lifelike and natural appearance to ceramic restorations 22,23) .…”