| 000 | 03140cam a2200325 a 4500 | ||
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| 003 | EG-GiCUC | ||
| 005 | 20250223032228.0 | ||
| 008 | 190316s2018 ua dh f m 000 0 eng d | ||
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_aEG-GiCUC _beng _cEG-GiCUC |
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| 041 | 0 | _aeng | |
| 049 | _aDeposite | ||
| 097 | _aM.Sc | ||
| 099 | _aCai01.09.09.M.Sc.2018.Al.F | ||
| 100 | 0 | _aAlaa Abdelzaher Abdelhamid Omara | |
| 245 | 1 | 0 |
_aFracture resistance of endodontically treated premolar teeth restored with CAD/CAM lithium disilicate endocrowns and H-shaped post : _bAn in vitro study / _cAlaa Abdelzaher Abdelhamid Omara ; Supervised Lamiaa Sayed Kheiralla |
| 246 | 1 | 5 |
_aH مقاومه الكسر للاسنان لضواحك المعالجه لبيا المستعاضه بالتيجان الجذرية المصنعة من الكاد كام ليثيوم ديسليكات (اندوكرون) و الدعامات الجزريه علي شكل حرف : _bدراسه معمليه |
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_aCairo : _bAlaa Abdelzaher Abdelhamid Omara , _c2018 |
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| 300 |
_a101 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 purpose of this in-vitro study was to compare the fracture resistance of lithium disilicate endocrowns with circular post and endocrowns with H-shaped short post when bonded to endodontically treated premolar teeth. In the present study 22 extracted single rooted premolars (specimens), were divided into two equal groups (11 specimens in each group). Group H : restored with endocrowns with H- shaped post. Group C: restored with endocrowns with circular post.To facilitated standardization of the teeth position during endocrown preparation and during test procedures, all teeth were mounted in epoxy resin blocks were positioned in the center of the blocks, parallel to its long axis and perpendicular to thier bases.Teeth were decapitated 2 mm above the cementoenamel junction from the proximal surfaces , then endodontically treated.Teeth were prepared to recieve either endocrown with H- shaped post or endocrown with circular post.Teeth were scanned with DOF scanner and restorations were designed with EXOCAD software. All restorations were milled with imes-icore machine. All endocrowns were checked on their corresponding teeth for cracking, proper seating and marginal accuracy .The endocrowns were cemented on their corresponding teeth using BisCem (Bisco Inc.,Schaumburg, IL, USA)dual-cure adhesive resin cement following total etch technique protocol.The endocrowns were seated into the prepared teeth with finger pressure and excess cement was removed with a microbrush.Then, the samples were maintained under a constant load of 3 Kg using aspecially designed loading device to standardize the load applied during bonding procedure | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aCAD/CAM | |
| 653 | 4 | _aEndocrowns | |
| 653 | 4 | _aLithium disilicate | |
| 700 | 0 |
_aLamiaa sayed kheiralla , _eSupervisor |
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| 856 | _uhttp://172.23.153.220/th.pdf | ||
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_aNazla _eRevisor |
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_aShimaa _eCataloger |
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| 942 |
_2ddc _cTH |
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_c70881 _d70881 |
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