Effect of shading technique and thickness on color stability and translucency of new generation translucent zirconia

Alp, Gülce; Subaşı, Meryem Gülce; Seghi, Robert R.; Johnston, William M.; Yılmaz, Burak

doi:10.1016/j.jdent.2018.03.011

Cited by 50 publications

(47 citation statements)

References 30 publications

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“…Additionally, only one side of the restorative material is exposed to mouthwash in the actual oral cavity, while the opposite side is cemented to the tooth surface. Thus, in an actual patient, only one side of the restoration will be affected by oral cleaning solutions; however, in this study, both sides were likely to be affected by the oral rinsing agent, which may have actually increased the colour tone change .…”

Section: Discussionmentioning

confidence: 77%

“…Therefore, the optical and surface properties of these materials can change within the oral cavity. Several studies have reported that acidic solutions, including cola, orange juice, red wine, coffee, and gastric acid, can change the optical properties and surface roughness of toothcoloured dental restorative materials (10)(11)(12)(13)(14)(15). In addition, several oral hygiene solutions currently on the market can also affect the colour of dental restoration materials (16)(17)(18).…”

mentioning

confidence: 99%

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Colour stability and surface properties of high‐translucency restorative materials for digital dentistry after simulated oral rinsing

Lee

Kim

Yoon

et al. 2020

European J Oral Sciences

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High‐translucency restorative materials are commonly used in the restoration of anterior teeth where aesthetics is a critical factor. In this in vitro study, the impact of mouthwash on the colour stability and surface characteristics of high‐translucency computer‐aided design and computer‐aided manufacturing (CAD‐CAM) dental restorative materials was evaluated. Two‐hundred specimens were fabricated from five high‐translucency CAD‐CAM materials: a resin nano ceramic; a polymer‐infiltrated ceramic network; a feldspathic ceramic; a lithium disilicate glass ceramic; and high‐translucency zirconia. Each group of ceramic specimens was then divided into four subgroups: conventional mouthwash (LISTERINE); whitening mouthwash (LISTERINE Healthy White); chlorhexidine gluconate; and distilled water. Oral rinsing was simulated at 100 rpm for 180 h, representing 15 yr of clinical simulation. The specimens were then evaluated for colour, translucency, gloss, roughness, and surface morphology. Two‐way ANOVA and linear mixed models were used for intergroup comparisons (α = 0.05). The polymer‐infiltrated ceramic network and feldspathic ceramic became brighter, more opaque, less glossy, and rougher after rinsing with the whitening mouthwash. The long‐term use of specific mouthwashes can cause deterioration of the optical and surface properties of high‐translucency CAD‐CAM dental restorations.

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Section: Discussionmentioning

confidence: 77%

mentioning

confidence: 99%

Colour stability and surface properties of high‐translucency restorative materials for digital dentistry after simulated oral rinsing

Lee

Kim

Yoon

et al. 2020

European J Oral Sciences

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“…Glazing is a laboratory procedure aimed to provide natural gloss, color stability and to reduce the plaque retention and antagonist tooth wear. After glazing, the ceramic surface becomes stronger, smoother, more glossy, and stable in color and translucency …”

Section: Introductionmentioning

confidence: 99%

“…After glazing, the ceramic surface becomes stronger, smoother, more glossy, and stable in color and translucency. [39][40][41] It was shown that the color of monolithic zirconia restorations may change, if their external surface are glazed, 42 by decreasing opalescence and lightness 43 in addition, glazing can alter the surface texture. 44 However, there is little information regarding the effect of thickness and glazing upon the optical properties of new brands of monolithic zirconia.…”

Section: Introductionmentioning

confidence: 99%

Effect of glazing on translucency, color, and surface roughness of monolithic zirconia materials

Manziuc

Gasparik

Burde

et al. 2019

J Esthet Restor Dent

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Objectives To assess the effect of material, thickness and glazing upon the color, translucency, and roughness of monolithic zirconia. Materials and methods Sixty discs (0.8, 1.5, and 2 mm thickness) were fabricated from A1 translucent zirconia (IPS e.max ZirCAD/MT, Katana/HT, Vita YZ/HT, Cercon/HT) and glazed. Roughness (Ra) was assessed with a profilometer and color coordinates were measured with a spectrophotometer on a black, white, and tooth‐shaded background before and after glazing. Relative translucency parameter (RTP), color differences (CIEDE2000) and differences in translucencies between materials, before and after glazing were calculated. RTP, Ra, color differences were statistically analyzed using ANOVA. Any significant interaction between factors was further analyzed using Tukey's HSD. Results RTP values were significantly different between materials (P < .001) and thicknesses (P < .001), with the interaction effect between material type and thickness, also significant (P < .001). However, glazing did not have a significant effect on RTP values (P = .782). Color differences resulted after glazing were significantly different between materials (P < .001), and thicknesses (P < .001) with the interaction effect also significant (P < .001). Glazing influenced roughness, Ra decreasing for all materials (P < .001). Conclusions As a result of glazing, only color changes were statistically significant. Translucency varied among brands of precolored monolithic zirconia; the differences increased for greater thicknesses. Clinical significance Glazing is an important step in the technological process of ceramic restorations; however, it can influence the final optical appearance of the restoration as color changes could be expected after the application of the glaze.

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“…Birçok araştırmacı, sinterleme sıcaklığı ve sinterleme sıcaklığındaki bekletme süresi ve sıcaklığındaki değişikliklerin zirkonya kor seramiğinin optik özellikleri üzerine etkilerini araştırmalarına rağmen bu değişikliklerin monolitik zirkonya üzerindeki etkileri hâlâ soru işaretidir. [6][7][8] Bu çalışmada, sinterleme parametrelerinden ısıtma hızının monolitik zirkonyanın translüsensi ve opasitesi üzerine etkisinin değerlendirilmesi amaçlanmıştır. Çalışmamızın sıfır hipotezi; "Isıtma hızı değişiklikleri monolitik zirkonyanın optik özellikleri üzerine etkili değildir" olarak belirlenmiştir.…”

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Evaluation of the Effect of Heating Rate on the Optical Properties of Monolithic Zirconia

Çelik¹,

Öztürk²

2019

Turkiye Klinikleri J Dental Sci

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Sinterleme parametrelerinden ısıtma hızının monolitik zirkonyanın translüsensi ve opasitesi üzerine etkisini değerlendirmektir. G Ge er re eç ç v ve e Y Yö ön nt te em ml le er r: : Kırk adet başlangıç boyutları 10x8x1,4 mm olan presinterize monolitik zirkonya örnekler bilgisayar destekli tasarım yazılımında tasarlanıp ardından bilgisayar destekli üretim cihazı kullanılarak üretildi. Örnekler, sinterleme fırınının ısıtma hızına göre (Grup 1: 15°C/dk, Grup 2: 20°C/dk ve Grup 3: 40°C/dk) ve kontrol grubu ile birlikte her grupta 10 örnek olacak şekilde dört alt gruba ayrıldı. Kontrol grubu üretici firmanın direktifleri doğrultusunda, diğer gruplar sinterleme fırının ısıtma hızı göz önüne alınarak, sinterleme sıcaklığı 1.500°C ve sinterleme sıcaklığında bekleme süresi 90 dk olacak şekilde sinterleme fırını kullanılarak sinterlendi ve final boyutları 8x6,4x1 mm olan örnekler elde edildi. Örneklerin L*, a* ve b* değerleri, D65 illuminant aydınlatma koşulları altında sırasıyla siyah ve beyaz zemin üzerinde spektrofotometre cihazı kullanılarak ölçüldü. Her grup için translusensi parametresi ve opalesans parametresi hesaplandı, elde edilen veriler tek yönlü varyans analizi testi kullanılarak p<0,05 anlamlılık düzeyinde değerlendirildi. B Bu ul lg gu ul la ar r: : Yapılan istatistiksel analiz sonucuna göre kontrol grubu ile diğer gruplardan elde edilen translusensi parametresi ve opalesans parametresi değerleri arasında istatistiksel olarak anlamlı bir fark saptanmadı. Diğer gruplardan elde edilen translusensi parametresi ve opalesans parametresi değerleri arasındaki farkların ise yine istatistiksel olarak anlamlı olmadığı belirlendi. S So on nu uç ç: : Zirkonyanın translusensi parametresi ve opalesans parametresi değerleri üzerinde sinterleme parametrelerinden ısıtma hızının anlamlı bir etkisi bulunmamaktadır. Isıtma hızı arttırılarak zirkonya materyalinin optik özellikleri değişmeden daha kısa toplam sinterleme sürelerinde restorasyonlar üretilebilmektedir.

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Effect of shading technique and thickness on color stability and translucency of new generation translucent zirconia

Cited by 50 publications

References 30 publications

Colour stability and surface properties of high‐translucency restorative materials for digital dentistry after simulated oral rinsing

Colour stability and surface properties of high‐translucency restorative materials for digital dentistry after simulated oral rinsing

Effect of glazing on translucency, color, and surface roughness of monolithic zirconia materials

Evaluation of the Effect of Heating Rate on the Optical Properties of Monolithic Zirconia

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