أ. نورةبرحيم

قسم الاستعاضة الصناعية كلية طب وجراحة الفم والأسنان

الاسم الكامل

أ. نورة شعبان على برحيم

المؤهل العلمي

ماجستير

الدرجة العلمية

محاضر

ملخص

د. نورة برحيم هي احد اعضاء هيئة التدريس بقسم الاستعاضة الصناعية بكلية طب وجراحة الفم والأسنان. تعمل السيدة نورة برحيم بجامعة طرابلس كـمحاضر مساعد منذ 2014-07-02 ولها العديد من المنشورات العلمية في مجال تخصصها

تنزيل السيرة الذاتية

معلومات الاتصال

روابط التواصل

الإستشهادات

الكل منذ 2017
الإستشهادات
h-index
i10-index

المنشورات

Assessment of Color Difference of Translucent Zirconia Substructure Veneered Using a Layering Technique with Two Different Veneering Thicknesses: An in-vitro study

ABSTRACT Background and objectives. The introduction of zirconia to the dental field created a path for development of new designs and applications, but still, a minimum framework thickness of 0.5 mm with the remaining thickness of the restoration used for building the ceramic veneer was always recommended. This might have possibly affected the final shade of the restoration due to the whitish color of Y-TZP. This in vitro study was designed to assess the color difference of translucent zirconia substructure veneered using a traditional layering technique with two different veneering thicknesses. Methods. A total of twenty translucent Ice zirconia disc samples with standardized dimensions 12 mm in a diameter, 0.5mm in thickness were designed and constructed using zirkonzahn system. The samples were classified into two groups: Group I: (n = 10) veneered by 0.5 mm thickness layering technique using IPS emax Ceram dentin shade A2. Group II (n = 10) veneered by 1 mm thickness layering technique using IPS emax Ceram dentin shade A2. Twenty composite resin discs 12mm in diameter and 5mm in thickness in A3 shade, were fabricated to be bonded to ceramic specimens using Dual-curing translucent rely X Unicem automix Self-Adhesive Resin luting cement. Spectrophotometer was used to measure color parameters L*, a*, b* for all samples. ΔE values were measured to determine color differences between the specimens and the A2 VITA classical shade (target shade). ΔE values were compared with an acceptability threshold (ΔE=3.7). Independent t-test was used to analyze data (P
Noora Berhaim , Nourelhouda Misurati, Milad Eshah, Mohamed Zeglam(7-2022)
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