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Comparison of retentive forces of clasps made from thermoplastic resin and conventional cobalt-chromium : In vitro study =مقارنة بين قوة الاستبقاء للمشابك اللدائن المرنة و المعدنية التقليدية : دراسة معمليه / Noha Yassien Abdelrahman Ali ; Supervised Mohamad Sabry Abdul Aziz Badawy , Nancy Nader Elsherbini

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Noha Yassien Abdelrahman Ali , 2016Description: 100 P. : charts , photographs ; 25cmOther title:
  • مقارنة بين قوة الاستبقاء للمشابك اللدائن المرنة و المعدنية التقليدية : دراسة معمليه [Added title page title]
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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics Summary: Objectives. The objective of this study was to compare the retentive force of clasps made from thermoplastic resin polyether ether ketone (PEEK)and cobalt{u2013}chromium (CoCr) alloy by using the digital force meter.Methods. On an acrylic experimental model showing maxillary kennedy class III, 34 frameworks of unilateral partial denture were made from two different materials, where 17 frameworks were fabricated from Co-Cr alloy and 17 frameworks were fabricated from thermoplastic resins (PEEK-BioHPP). Frame works were standardized with circumferential clasps in undercut of 0.02 of an inch and same thickness (1.0 mm thick) of clasp arms through using the same readymade wax patterns on all.Data management and statistical analysis were performed using Statistical Package for Social Sciences (SPSS) vs. 21. Numerical data were summarized using means and standard deviations and ranges. Comparisons between the 2 groups with respect to normally distributed numeric variables were done using the paired t-test. Results. The results of paired t test for comparison between the retention values of both Group A and Group B showed that the difference between the two groups was statistically significant and p-value {u2264} 0.001. clasps of Cobalt chromium alloys showed higher retention values compared to clasps of polyether ether ketone (PEEK)
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Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.09.09.M.Sc.2016.No.C (Browse shelf(Opens below)) Not for loan 01010110071899000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.09.09.M.Sc.2016.No.C (Browse shelf(Opens below)) 71899.CD Not for loan 01020110071899000
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Cai01.09.09.M.Sc.2016.Mo.R Retention of two types of machine milled Non metallic crowns luted with two adhesive resin techniques / Cai01.09.09.M.Sc.2016.Ne.R Route of cement layer failure under all-ceramic crowns : A finite element study / Cai01.09.09.M.Sc.2016.Ne.R Route of cement layer failure under all-ceramic crowns : A finite element study / Cai01.09.09.M.Sc.2016.No.C Comparison of retentive forces of clasps made from thermoplastic resin and conventional cobalt-chromium : In vitro study =مقارنة بين قوة الاستبقاء للمشابك اللدائن المرنة و المعدنية التقليدية : دراسة معمليه / Cai01.09.09.M.Sc.2016.No.C Comparison of retentive forces of clasps made from thermoplastic resin and conventional cobalt-chromium : In vitro study =مقارنة بين قوة الاستبقاء للمشابك اللدائن المرنة و المعدنية التقليدية : دراسة معمليه / Cai01.09.09.M.Sc.2016.No.E Effect of different denture base materials on the masticatory muscles activity in cases of maxillary single dentures wearers / Cai01.09.09.M.Sc.2016.No.E Effect of different denture base materials on the masticatory muscles activity in cases of maxillary single dentures wearers /

Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Prosthodontics

Objectives. The objective of this study was to compare the retentive force of clasps made from thermoplastic resin polyether ether ketone (PEEK)and cobalt{u2013}chromium (CoCr) alloy by using the digital force meter.Methods. On an acrylic experimental model showing maxillary kennedy class III, 34 frameworks of unilateral partial denture were made from two different materials, where 17 frameworks were fabricated from Co-Cr alloy and 17 frameworks were fabricated from thermoplastic resins (PEEK-BioHPP). Frame works were standardized with circumferential clasps in undercut of 0.02 of an inch and same thickness (1.0 mm thick) of clasp arms through using the same readymade wax patterns on all.Data management and statistical analysis were performed using Statistical Package for Social Sciences (SPSS) vs. 21. Numerical data were summarized using means and standard deviations and ranges. Comparisons between the 2 groups with respect to normally distributed numeric variables were done using the paired t-test. Results. The results of paired t test for comparison between the retention values of both Group A and Group B showed that the difference between the two groups was statistically significant and p-value {u2264} 0.001. clasps of Cobalt chromium alloys showed higher retention values compared to clasps of polyether ether ketone (PEEK)

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