تفاصيل الوثيقة نوع الوثيقة : مقال في مجلة دورية  عنوان الوثيقة : FRACTURE RESISTANCE OF THREE DIFFERENT ALL- CERAMIC CROWN SYSTEMS FRACTURE RESISTANCE OF THREE DIFFERENT ALL- CERAMIC CROWN SYSTEMS   لغة الوثيقة : الانجليزية  المستخلص : New dental ceramic materials and techniques have been introduced in the past few years to fabricate all-ceramic restorations, but their strength is still an important issue. The purpose of this study was to evaluate the fracture resistance and the mode of fracture of three different dentin bonded allceramic crown systems constructed by different techniques and materials. The ceramic materials used were Dicor (castable ceramic), JPS Empress (Pressable ceramic) and Hi-Ceram -conventional (powder-slurry) reinforced ceramic. Twenty -one teeth were prepared with minimal crown preparation for all-ceramic crowns, and randomly assigned into three groups. Allceramic crowns were constructed from the three ceramic systems according to the manufacturer’s instructions of each system. The internal surfaces of all the ceramic crowns were etched and silanated prior to cementation with dual polymerising resin cement. The cemented crowns were loaded to fracture and the modes of fracture were also recorded. Results were analyzed using ANOVA test.  ردمد : 0  اسم الدورية : Egyptian Dental journal  المجلد : 47  العدد : 2  سنة النشر : 2001 هـ 2001 م  نوع المقالة : مقالة علمية  تاريخ الاضافة على الموقع : Wednesday, January 2, 2008  الباحثون اسم الباحث (عربي) اسم الباحث (انجليزي) نوع الباحث المرتبة العلمية البريد الالكتروني طارق رشاد Rashad, Tarek باحث رئيسي دكتوراه tabdulrahim@kau.edu.sa الملفات اسم الملف النوع الوصف  25445.pdf pdf   الرجوع إلى صفحة الأبحاث