000 03093cam a2200313 a 4500
003 EG-GiCUC
008 180909s2016 ua do f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.09.03.M.Sc.2016.Al.F
100 0 _aAlaa Fathi Abdelsalam Abdelsalam
245 1 0 _aFracture resistance of mesio-occluso-distal cavities in maxillary premolars restored with nanohybrid composite or bulk fill composite with and without fiber reinforced bulk fill base :
_bIn vitro study /
_cAlaa Fathi Abdelsalam ; Supervised Mohamed Riad farid , Mohamed Fouad Haridy
246 1 5 _aمقاومة الكسر للضواحك العلوية المعدة تجويفيا و المعبأه بمركبات النانو راتنجية المهجنة او المركبات الكتلية بقاعدة من المركبات الكتلية المعززة بالالياف او بدونها
_bدراسة معملية
260 _aCairo :
_bAlaa Fathi Abdelsalam Abdelsalam ,
_c2016
300 _a96 P. :
_bcharts , photographs ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Operative Dentistry
520 _aThis study was conducted to evaluate the fracture resistance of maxillary premolars weakened by extensive MOD cavities and restored with nanohybrid resin based composite or bulk fill composite with and without a newly introduced fiber reinforced bulk fill base. A total of 60 sound non cavitated human premolar indicated for extraction were anonymously collected. All teeth were free from caries, cracks or restorations. Teeth were randomly allocated into six main groups (n=10) by the researcher. Group 1: Sound premolars. Group 2: Unrestored premolars with MOD cavity preparation. Group 3: Premolars with MOD cavity preparation restored incrementally with nanohybrid composite (Grandio®, Voco{u2122}). Group 4: Premolars with MOD cavity preparation restored by bulk fill composite(x-tra fil®, Voco{u2122}). Group 5: Premolars with MOD cavity preparation restored by 2mm fiber reinforced bulk fill composite (Ever X posterior®, GC{u2122}) and with 2 mm nanohybrid composite veneer (Grandio®, Voco{u2122}). Group 6: Premolars with MOD cavity preparation restored by 2 mm fiber reinforced bulk fill composite base (Ever X posterior®, GC{u2122}) and veneered by 2mm bulk fill composite (x-tra fil®, Voco{u2122}). All prepared teeth received restorations except group 2 2cavity preparation without restorations3 to act as the negative control. After adhesive application, a matrix retainer system, a holder and a metal matrix, (tofflemire, miltex Inc, York, PA, USA) was used to simulate the clinical conditions
530 _aIssued also as CD
653 4 _aFracture resistance
653 4 _aMaxillary premolars restored
653 4 _aMesio-occluso-distal cavities
700 0 _aMohamed Fouad Haridy ,
_eSupervisor
700 0 _aMohamed Riad farid ,
_eSupervisor
905 _aNazla
_eRevisor
905 _aSamia
_eCataloger
942 _2ddc
_cTH
999 _c67388
_d67388