000 02575cam a2200313 a 4500
003 EG-GiCUC
008 150506s2013 ua o f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.09.09.M.Sc.2013.Al.E
100 0 _aAla{u2019}a Basel khafash
245 1 0 _aEvaluation of marginal accuracy, fracture resistance and mode of fracture of translucent zirconia bridges using machinable CAD / CAM technique /
_cAla{u2019}a Basel khafash ; Supervised Hesham Katamish , Ahmed Kamal Ebeid
246 1 5 _aتقييم الدقة الحافية و قوة و طريقة الكسر للجسور المصنوعة من الزركونيا الشفافة باستخدام الكاد / كام
260 _aCairo :
_bAla{u2019}a Basel khafash ,
_c2013
300 _a98 Leaves :
_bphotographs ;
_c30cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics
520 _aThe purpose of the present study was to investigate fracture resistance, marginal accuracy and mode of fracture of the CAD / CAM translucent zirconia three unit posterior bridges. The number of models used for this study were 20. All 20 models were constructed into a three unit FPD bridge with full coverage retainers on both abutments, restoring the maxillary second permanent premolar. The constructed 20 models, were divided prior to construction into two different groups, according to the material used in model construction. Each of the studied groups consisted of 10 models. The first group of FPDs was constructed using veneered zirconia cores. The second group of FPDs was constructed using Zirconia full anatomical bridge. The bridges were made using the cerec in Lab 3.88 CAD/CAM system, which is one of the best systems used in FPD construction owed to its highly accurate scanning, design and milling.Marginal accuracy, fracture resistance and mode of fracture were determined for the bridge models. Marginal accuracy was conducted using digital optical microscopy, while fracture resistance of the FPDs was tested using an electronic compressive strength measuring machine followed by SEM scanning to assess the effect of mode of fracture
530 _aIssued also as CD
653 4 _aFracture resistance
653 4 _aMarginal accuracy
653 4 _aMode of fracture
700 0 _aAhmed Kamal Ebeid ,
_eSupervisor
700 0 _aHesham Katamish ,
_eSupervisor
905 _aNazla
_eRevisor
905 _aSamia
_eCataloger
942 _2ddc
_cTH
999 _c50804
_d50804