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Evaluation of marginal discrepancy and microleakage of lava ultimate (resin nano ceramic) versus lithium disilicate IPS E.max CAD endocrowns : In vitro study / Ayah Ahmed Aboulezz ; Supervised Jylan Elguindy , Rana Elsherif

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Ayah Ahmed Aboulezz , 2015Description: 109 P. : photographs ; 25cmOther title:
  • تقييم التباين الحافى و التسريب الميكرونى لتيجان الجذورمن مادة الللفا ألتيمات مقابل تيجان الجذور من مادة الأى بى أس إى ماكس كاد : دراسة معملية [Added title page title]
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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics Summary: This study was conducted to evaluate the effect of using two different remeniralizing agents prior to the use of adhesive system on shear bond strength of the nano-hybrid composite resin. A total of 84 extracted molar teeth used maximally two months after extraction. The exclusion criteria for selection of the samples were the teeth with caries, cracks, erosion, fluorosis or hypo-calcification, and restorations. A flat dentin surface was prepared perpendicular to the longitudinal axis of each tooth using a low speed Isomet diamond saw under water cooling. Teeth were randomly divided into three main groups; each group had 28 tooth randomly selected. First group (A1) (control group) had no re-mineralizing agent. Second group demonstrated fluoride varnish (A2 group). The third group demonstrated tri- calcium phosphate varnish (A3 group). Acid etching applied to all groups, also self-etch adhesive system. A metal mold was used to build up composite resin buttons of 2mm thickness and 2mm in diameter, light cured for 40 sec to all groups according to the manufacturer instructions. Each group subdivided into two other groups according to the time of testing; (T1, T2 groups) after one week and three months respectively. All samples were tested by universal testing machine
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Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.09.09.M.Sc.2015.Ay.E (Browse shelf(Opens below)) Not for loan 01010110070256000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.09.09.M.Sc.2015.Ay.E (Browse shelf(Opens below)) 70256.CD Not for loan 01020110070256000

Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics

This study was conducted to evaluate the effect of using two different remeniralizing agents prior to the use of adhesive system on shear bond strength of the nano-hybrid composite resin. A total of 84 extracted molar teeth used maximally two months after extraction. The exclusion criteria for selection of the samples were the teeth with caries, cracks, erosion, fluorosis or hypo-calcification, and restorations. A flat dentin surface was prepared perpendicular to the longitudinal axis of each tooth using a low speed Isomet diamond saw under water cooling. Teeth were randomly divided into three main groups; each group had 28 tooth randomly selected. First group (A1) (control group) had no re-mineralizing agent. Second group demonstrated fluoride varnish (A2 group). The third group demonstrated tri- calcium phosphate varnish (A3 group). Acid etching applied to all groups, also self-etch adhesive system. A metal mold was used to build up composite resin buttons of 2mm thickness and 2mm in diameter, light cured for 40 sec to all groups according to the manufacturer instructions. Each group subdivided into two other groups according to the time of testing; (T1, T2 groups) after one week and three months respectively. All samples were tested by universal testing machine

Issued also as CD

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