Evaluating the shear bond Strength of 2SR Nexco Paste3 versus 2IPS Inline3 for veneering metal substructure : An in vitro study / Mostafa Mahmoud Saleh Elshabrawy ; Supervised Rana Mahmoud Sherif , Maha Taymour
Material type: TextLanguage: English Publication details: Cairo : Mostafa Mahmoud Saleh Elshabrawy , 2015Description: 110 P. : facsimiles ; 25cmOther title:- تقييم قوة الربط القصية لقشرة "اس ارنكسكو"مقارنة بقشرة 3اى بى اس ان لاين : لبنية معدنية : دراسه معملية [Added title page title]
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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.2015.Mo.E (Browse shelf(Opens below)) | Not for loan | 01010110069045000 | |||
CD - Rom | مخـــزن الرســائل الجـــامعية - البدروم | المكتبة المركزبة الجديدة - جامعة القاهرة | Cai01.09.09.M.Sc.2015.Mo.E (Browse shelf(Opens below)) | 69045.CD | Not for loan | 01020110069045000 |
Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine- Department of Prosthodontics
Purpose: This In-Vitro study compared the shear bond strength between indirect composite and porcelain for veneering a metal substructure. Materials and Methods: twenty-four disks cast in nickel chromium alloy were divided equally into two groups and received different treatments for veneering: Indirect Composite (SR Nexco Paste) was applied on one group of specimens; the control group was veneered using porcelain (IPS Inline). The specimens were tested by a circular interface shear test after 2,500 thermocycles between 5{u00BA}C and 55{u00BA}C water baths with a dwell time of 20 seconds. The fractured specimens were evaluated to determine the mode of failure by a scanning electron microscope. Results: The mean shear bond strength values (in MPa) after thermocycling was 10.06 for the indirect composite group and 34.94 for the porcelain group. The metal-ceramic group exhibited significantly higher bond strength than the indirect composite group. Conclusion: SR Nexco can be considered as a reliable material for veneering a metal substructure according to ISO 1477 and Matsumura
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