The influence of core design on fracture resistance of all-ceramic crowns / Eyad Fathi saleem ; Supervised Eman Salah Hamdy , Jylan Fouad Elguindy
Material type: TextLanguage: English Publication details: Cairo : Eyad Fathi saleem , 2011Description: 75 Leaves : charts , facsimiles ; 30cmOther title:- تأثير تصميم اللب على مقاومة الكسر للتيجان الخزفية [Added title page title]
- Issued also as CD
Item type | Current library | Home library | Call number | Copy number | Status | Date due | Barcode | |
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Thesis | قاعة الرسائل الجامعية - الدور الاول | المكتبة المركزبة الجديدة - جامعة القاهرة | Cai01.09.09.M.Sc.2011.Ey.I (Browse shelf(Opens below)) | Not for loan | 01010110065289000 | |||
CD - Rom | مخـــزن الرســائل الجـــامعية - البدروم | المكتبة المركزبة الجديدة - جامعة القاهرة | Cai01.09.09.M.Sc.2011.Ey.I (Browse shelf(Opens below)) | 65289.CD | Not for loan | 01020110065289000 |
Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics
This study was conducted to investigate the influence of core design on fracture resistance for all-ceramics crowns. a stainless-steel metal die was constructed then duplicated to produce stone dies for the construction of all-ceramic crowns, the die was designed to include 1.2mm shoulder finish line, and 60 total wall tapering, a total of fifteen posterior upper first premolar full crown restorations were divided into 3 groups (n=5) each: (1) Group I: core thickness 0.7mm (with 1mm collar all around), and veneer thickness 0.5mm, the core fabricated of all- ceramic zirconia-based crown and veneered with a ceramic (VITA VM®9, Vita zhanfabrik); and (2) Group II: core thickness 0.7mm ( all surface except buccal 0.5mm), and veneer thickness 0.5mm (all surface except buccal 0.7mm), with the same material of group I; and (3) Group III: core thickness 0.5mm (with 3mm palatal collar extended to contact area), and veneer thickness 0.7mm, with the same material of group I and II. Then metal die duplicated to epoxy resin material were used in fracture testing. Specimens were subjected to compressive loading using a universal testing machine at a crosshead speed of 1.0mm/min. A stereomicroscope was used to determined the failure modes of specimens
Issued also as CD
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