000 03130cam a2200337 a 4500
003 EG-GiCUC
005 20250223031523.0
008 160619s2015 ua do f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.09.09.M.Sc.2015.La.M
100 0 _aLamiaa Said Zaki Abdelsalam
245 1 0 _aMinimally invasive management of compromised molar site with different implant designs and superstructures :
_bIn vitro study /
_cLamiaa Said Zaki Abdelsalam ; Supervised Lamiaa Sayed Kheiralla , Mona Atteya Alagroudy
246 1 5 _aالحد الأدنى من التدخل فى معالجة مقر الضرس المنقوص بتصميمات غرس و بنية فوقية مختلفة :
_bدراسة فى المختبر
260 _aCairo :
_bLamiaa Said Zaki Abdelsalam ,
_c2015
300 _a140 P. :
_bcharts , photographs ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics
520 _aThe aim of this study was to evaluate the biomechanical response of the peri-implant bone to standard, short wide and double mini implants replacing missing molar supporting either hybrid ceramic crowns (Lava Ultimate restorative) or full metal crowns under 2 different loading conditions (axial and off axial loading ) using strain gauge analysis. 3 single molar implant designs: (1) single, 3.8 mm (regular) diameter implant, (2) single, 5.8 mm (wide) diameter implant, and (3) two 2.5 mm diameter (double) implants connected through a single-molar crown were embedded in epoxy resin by the aid of a surveyor to ensure their parallelism. Each implant supported full metal crowns made of Ni-Cr alloy and hybrid ceramic with standardized dimensions. Epoxy resin casts were prepared to receive 4 strain gauges around each implant design, on the buccal, lingual, mesial, and distal surfaces. Results were analyzed statistically. Results showed that implant design has statistically significant effect on peri implant microstrains; where the standard implant showed the highest mean microstrain values followed by double mini implants, while the short-wide implant showed the lowest mean microstrain values. Concerning the superstructure material, implants supporting lava ultimate crowns had statistically significant higher mean microstrain values than those supporting full metal crowns. Concerning the load direction, off-axial loading caused uneven distribution of load with statistically significant higher microstrain values on the site of off axial loading (distal surface) than the axial loading. Implant design, superstructure material and load direction significantly affect peri-implant microstrains.
530 _aIssued also as CD
653 4 _aMini implants
653 4 _aShort wide implants
653 4 _aStandard implants
700 0 _aLamiaa Sayed Kheiralla ,
_eSupervisor
700 0 _aMona Atteya Alagroudy ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aSamia
_eCataloger
942 _2ddc
_cTH
999 _c56968
_d56968