| 000 | 02545cam a2200313 a 4500 | ||
|---|---|---|---|
| 003 | EG-GiCUC | ||
| 008 | 160118s2015 ua dh f m 000 0 eng d | ||
| 040 |
_aEG-GiCUC _beng _cEG-GiCUC |
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| 041 | 0 | _aeng | |
| 049 | _aDeposite | ||
| 097 | _aM.Sc | ||
| 099 | _aCai01.09.09.M.Sc.2015.Mo.E | ||
| 100 | 0 | _aMohamed Ahmed Mohamed Elmorsy | |
| 245 | 1 | 0 |
_aEffect of different repair techniques and aging on shear bond strength of repaired resin nano ceramic / _cMohamed Ahmed Mohamed Elmorsy ; Supervised Lamia Sayed Kheiralla , Maha Ahmed Taymour |
| 246 | 1 | 5 | _aتأثير مختلف تقنيات الإصلاح و التعميرعلى قوة الربط القصية بين مادة الإصلاح و الراتنج نانو سيراميك |
| 260 |
_aCairo : _bMohamed Ahmed Mohamed Elmorsy , _c2015 |
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| 300 |
_a84 P. : _bcharts , facsimiles ; _c25cm |
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| 502 | _aThesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics | ||
| 520 | _aThe aim of the study is to evaluate the effect of different repair techniques and aging on the bond strength of the composite resin repair to composite nano ceramic material. A total of 30 samples were constructed from lava ultimate blocks (resin nano ceramic) for this study with standardized dimensions (7 X 7 X 2 mm3). Samples were divided according to surface treatment into 3 groups: Group I: Surface treatment using silica blasting (Cojet) technique. Group II: Surface treatment using sandblasting technique (50 æm alumina). Group III: No treatment (control) . Then surface roughness was measured by profilometer and a random selected sample from each group was scanned by electron microscope. Then repair layer was applied in accordance with the manufacturers{u2019} recommendations. All samples were stored in distilled water at 370c for 24 hours. Each group was further sub divided into 2 subgroups according to aging. Subgroup 1: Not subjected to aging. Subgroup 2: Subjected to aging. Then subgroups were aged by being subjected to thermo cycling for 500 cycles between 5 and 550C with interval time of 30 second. Each sample was subjected to a shear force at a crosshead speed of 0.5 mm / min using a universal testing machine until failure | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aCeramic | |
| 653 | 4 | _aComposite | |
| 653 | 4 | _aResin nano ceramic | |
| 700 | 0 |
_aLamia Sayed Kheiralla , _eSupervisor |
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| 700 | 0 |
_aMaha Ahmed Taymour , _eSupervisor |
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| 905 |
_aNazla _eRevisor |
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| 905 |
_aSamia _eCataloger |
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| 942 |
_2ddc _cTH |
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| 999 |
_c54569 _d54569 |
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