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العنوان
Flexural Strength of Two Different Ceramic Materials Bonded to CAD/CAM Titanium ( An in Vitro Study) /
المؤلف
Ahmed, Lamiaa Hamdy mahmoud.
هيئة الاعداد
باحث / لميس حمدى محمد احمد
مشرف / يسرية عطية شلبى
مشرف / دولت مصطفى احمد
مناقش / محمد محمود الخطيب
الموضوع
Department of Fixed Prosthodontics.
تاريخ النشر
2020.
عدد الصفحات
80p+1. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
طب الأسنان
تاريخ الإجازة
1/1/2000
مكان الإجازة
جامعة الاسكندريه - كلية طب الاسنان - Department of Conservative Dentistry
الفهرس
Only 14 pages are availabe for public view

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Abstract

imestigate the flexural strength of low fa.mg ... materials bonded to CADICAM titanium by the etTect of sandblast,. wt. ,thaninum oside and appli.tion of bonding agent. A CAD/CAM machine wm used to mill 36 ...um.’ .P.’imens of Grade 2 titanium in the Mmensions of (25.0 mm 3.0 rnm 0.5 nun, The speeimens were divided into nvo equal grottl.,D0 and sandblasting was performed (0 ,thesc groups using 500m aluminum oxide. Each of thesc groups (Sandblmtixt and non-were further sub grouped into two equal gmups according veneering material porcelain or CAD/CAM zirconia. A universal testing machine was 3-point bending test. The titanium-porcelain and tiumium-zirconia interihccs subjected to ...microscopic ns well as scanning electron microscopic analysis. The bond wur, data ,,,,,,vere anal,. using the Student t-tcst. The debonding test showed that ,andblasted sub...1. veneered ,vith either low fusing porcelain or zirconia resulted in the bond (29.09 ± 2.69 MPa and 32.4, 1, Ml’a, Whereas., non-,andblastoi .4=P, veneered with both low fusing porcelain and Arconia resuhed in band strength (13.14± 1.93 and 1227 1.94 ’I. photonncrographs of the titanium sar,.. debonding demonstrated more residual porcelain retained on the mewl airface for sandbi.cd subgrot, Conclusions: Sandblasting with alumina produced a significant increase Mc bond strength between titanium and the veneering material, while the application of bonding agent alone without sandblasting resulted in insufficient bond strength. Bondi, beturen zirconia and titanium using a bonding agent in the presence of sandblasting showet signiticannusults comp...me to that of low fusing porcelain.