رغم التفوق الكبير لخصائص التعويضات الخزفية الكاملة التجميلية مقارنة مع مثيلاتها
الخزفية المعدنية لا بد من مراعاة عدد من الشروط في اختيار اللون السني
لتحقيق أفضل محاكاة لونية مع الأسنان الطبيعية المجاورة و من أهم هذه الشروط هو لون
الدعامة المحضرة. أجريت هذه الدراسة المخبرية لمعرفة تأثير اختلاف لون الدعامة على
اللون النهائي للتيجان الزيركونية المغطاة قبل إلصاقها على دعامات بلونين مختلفين.
several factors should be considerate when
fabricating zirconia-based crowns to achieve maximum shade
symmetry with adjacent natural teeth. Abutment color is one of the
before most important factors due to its effect on the final restoration
cementation. Therefore, this study aims to detect the effect of different
abutment shades on zirconia-based crown color.
References used
Baldissara, P, Lukacej, A, Ciocca, L2010 Translucency of zirconia copings made with different CAD/CAM systems J Prosthet Dent, vol. 104.6-12
Chang, J, Da Silva, JD, Sakai, M 2009 the optical effect of composite luting cement on all ceramic crowns J Dent, Vol. 37.937-943
Chaiyabutr Y, Kois JC, Lebeau D, Nunokawa G 2011 Effect of abutment tooth color, cement color, and ceramic thickness on the resulting optical color of a CAD/CAM glass-ceramic lithium disilicate reinforced crown. J Prosthet Dent, Vol. 105(2):83-90
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.
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.
Background& Objective: This study was carried out to test fracture resistance of crowns with Zirconia
core made by CAD/CAM of two thicknesses, and test the influence of decreasing the core thickness on its
fracture resistance, and study the patterns of failure.
It was recently noted that there are
serious trials to develop dental materials used in the prosthodontics.
As a result of this development, some veneering ceramic systems
used in metal-ceramic crowns have been appeared. In view of the
major impo
This study aims to evaluate zirconia bond strength bonded with resin cement
after deferent surface treatments.