Mohammed Mohammed Elhifny Elageery <br/><br/>
Influence of different surface treatments  of Y-TZP discs on shear bond strength /  
 تأثير معاملات الأسطح المختلفة على قوة الربط القصية لأقراص الزيركنيوم 
Mohammed M. Elhifny Elageery ; Supervised Lamiaa Sayed Kheirallah , Omnia Mohamed Elshehy 
 - Cairo :   Mohammed Mohammed Elhifny Elageery ,   2014 
 - 91 Leaves :   charts , facsimiles ;   30cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics 
<br/><br/> The purpose of this study was to investigate the influence of applying a thin intermediary coating of acid - etchable glassws on zirconia discs (glaze - on technique), compared to tribochemical silica coating, on the shear bond strength between two types of resin based cement and a ytria - stabilized zirconia dental ceramic substrate. 20 yttria - stabilized tetragonal zirconia discs were constructed with standardized dimensions. Then all dises were sandblasted with 110 pm A₂O₃ particles. All dises were randomly divided into 2 groups: Group 1 (n = 10): zirconia surface was treated with glaze - on technique, in which a thin layer of acid - etchable glazing ceramics was applied to the zirconia surface followed by HF acid etching. Group 2 (n - 10): zirconia surface was treated with cojet tribochemical silica coating of particle size 30 æm 
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<br/><br/><label>Subjects--Index Terms: </label>Glaze-on technique Resin cement  Zirconia surface treatment