| 000 | 02615cam a2200313 a 4500 | ||
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| 003 | EG-GiCUC | ||
| 008 | 171223s2016 ua do 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 | _aCai01.09.03.M.Sc.2016.Di.F | ||
| 100 | 0 | _aDina Attia Abdulkareem Mahmoud | |
| 245 | 1 | 0 |
_aFracture resistance of premolars restored with bulk fill resin composite versus incrementally packed resin composite : _bIn vitro study / _cDina Attia Abdulkareem Mahmoud ; Supervised Heba Hamza , Asmaa Aly Yassen |
| 246 | 1 | 5 |
_aمقاومة الكسر فى الضواحك المرممه بالكمبوزيت ذى تقنية الدفعه الواحده مقارنة بالكمبوزيت ذى تقنية الدفعات : _bدراسه مخبريه |
| 260 |
_aCairo : _bDina Attia Abdulkareem Mahmoud , _c2016 |
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| 300 |
_a86 P. : _bcharts , photographs ; _c25cm |
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| 502 | _aThesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Operative Dentistry | ||
| 520 | _aThe present study was conducted to evaluate fracture resistance of premolars restored with either bulk fill resin composite restorative material or incrementally-packed resin composite after 24 hours and or after one month storage in a storage solution. A total of 40 freshly extracted, sound, human maxillary premolars, from an age of 20-35 years extracted for orthodontic purposes were used in this study. A standardized mesio-occluso-distal (MOD) cavity with parallel walls and without proximal step was prepared using a rose head bur for gaining access then a cylinderical fissure bur. The teeth were randomly divided equally into two main groups (20 teeth each) according to the type of resin composite material used. Incrementally-packed resin compositewas applied in group( A1) and bulk-fill resin composite was applied in group (A2). Each group was subdivided into subgroups (S1 and S2) according to storage period which was either 24 hours or one month respectively, making each group formed of 10 specimens (n=10). The fracture resistance values of all test groups were measured with an Instron testing machine machine. A crosshead speed of 0.5 mm/min. was used and the loads required to fracture the teeth in KG were recorded | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aBulk fill resin composite | |
| 653 | 4 | _aFracture resistance | |
| 653 | 4 | _aPremolars restored | |
| 700 | 0 |
_aAsmaa Aly Yassen , _eSupervisor |
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| 700 | 0 |
_aHeba Hamza , _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 |
_c64171 _d64171 |
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