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Register a new userEffect of Cement Color on The Final Color of All Glass Ceramic System IPS e.max® (In vitro study)
تأثير لون إسمنت الإلصاق في اللون النهائي لنظام الخزف الكامل الزجاجي IPS e.max دراسة مخبرية
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إن الحصول على التطابق اللوني النهائي مع الأسنان الطبيعية عند الترميم بالخزف الكامل الزجاجي صعب التحقيق في أغلب الأحيان، و لكنه مهم جداً لنجاح هذا النوع من الترميمات تجميلياً. هدف هذا البحث إلى تقييم تأثير لون إسمنت الإلصاق في اللون النهائي للتاج المصنوع من الخزف الكامل الزجاجي لنظام IPS e.max.
Usually, it's hard to reach the final color identity with normal teeth when using full glass ceramic, but this matter is very important for the cosmetic successful of these restorations. This in vitro study evaluated the effect of cement color on the final color of full crown glass ceramic of system IPS e.max.
References used
Joiner A. Tooth Color: A review of The Literature. J Dent 2004; 32: 3-12
Nagai S, Yoshida A, Sakai M, Kristiansen J. Clinical evaluation of perceptibility of color differences between natural teeth and all-ceramic crowns, Elsevier Ltd, United States, 2009, p58
O'Brien WJ. Dental Materials and Their Selection, 3rd Ed., Quintessence Publishing, Michigan, 2002, p58
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Porcelain has a long history of fixed prosthodontics to achieve optimum beauty by color. However, there is a lack of information on how the color of different thicknesses of ivory porcelain is affected by repeated exposure to baking.
Objective: is to study the effect of colored (non-opaque) adhesive resin cement and opaque adhesive resin cement on color matching of full ceramic crowns set on severe discolored abutments.
Materials and Methods: Sample consisted of 15 full cerami
c (IPS e-max press) crowns (A1 Vita Classical Guide) set on severe discolored abutments (ND9) and divided into 3 equal groups (1) left without adhesive (2) adhered with colored Adhesive Resin Cement (3) adhered with opaque Adhesive Resin Cement. The color of these full ceramic crowns was analyzed in the cervical, medium and incisal third using digital color analyzer (Easy Shade Compact); and the values of color change (∆E) were studied and compared with (∆E) of one full ceramic (IPS e-max press) crown (A1 Vita Classical Guide) set on non-discolored abutment (ND1).
Results: showed that White Opaque (WO) Adhesive Resin Cement improved the ∆E values in the full ceramic crowns bonded on severe discolored abutments, were relatively better than the colored cement. However, both kinds of the cements did not reach a color matching level that we can clinically accept.
This study aims to recognize the effect of Variolink Veneer (V.V) cement colors used in luting thin veneers fabricated from (IPS e-max) porcelain on the final resulting color. A sample of (30) thin veneers in (A1-A2-A3-A3,5( colors is used. The venee
rs were equally divided into two subgroups; the first was manufactured with(Press) technique and the second was manufactured with(CAD-CAM) techniques. The changes between the desired and resulting color are measured for without luting by the(Easyshade Compact) device. Each third of every subgroupwasthen luted with one of the colors of (V.V) (+3),(0),(-3), changes in color were re-measured. Results showed that (V.V-3) presents the favoredresults, while (V.V+3) offers the less favoredresultsfor the desired color. A comparison between the two techniques,showed that (IPS e-max CAD) provides the most favored result more than (IPS e-max press), that is why, (CAD) with (V.V-3) is the best in all combinations
Color stability is an important factor to ensure the long-term of esthetic success
of ceramic restoration, there are several factors affect color stability, such as repeated firing.
Aim of Study: Color Difference comparison between two types of cer
amic fused to metal after repeat
firing by using spectrophotometer (Vita Easy Shade).
An appropriate bond between glass‑ionomer and the superficial
resin materials is very important for the success of sandwich
technique. The aim of the present in vitro study was to evaluate the
effect of three surface treatments of conventional glass‑ionomer on
its shear bond strength to giomer
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