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Effect of convergence angle of tooth preparation on the internal fit and marginal accuracy of hybrid Enamic restoration compared to ceramo-metallic restoration : An in vitro study / Heba Mustafa Mahroos ; Supervised Rabab Mohamed Ibrahim , Gehan Alnagar

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Heba Mustafa Mahroos , 2015Description: 96 P. : charts , facsimiles ; 25cmOther title:
  • تأثير زاوية الميل عند تحضير السن على التطابق الداخلى ودقة الحواف للتعويضات المهجنة الاينمك بالتعويضات المعدنية المخزفة : دراسة معملية [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: Aim: The aim of this study was to evaluate the effect of convergence angle 12{u00B0} and 18{u00B0} of tooth preparation on the internal fit and marginal accuracy of hybrid Enamic restoration . Results: Irrespective of occlusal taper angle, totally it was found that PFM group recorded statistically non-significant (P>0.05) higher vertical marginal gap mean value (53.66± 6.59æm) than Enamic group which recorded vertical marginal gap mean value (51.95 ±5.98 æm) as indicated by two wayANOVA followed by pair-wise Tukey's post-hoc tests. Conclusions: The vertical marginal gap of hybrid ceramic improved with increasing the convergence angle of the preparation to 18{u00B0}. The vertical marginal gap of PFM showed better result with decreasing convergence angle of the preparation to 12{u00B0}.
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Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.09.09.M.Sc.2015.He.E (Browse shelf(Opens below)) Not for loan 01010110069040000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.09.09.M.Sc.2015.He.E (Browse shelf(Opens below)) 69040.CD Not for loan 01020110069040000

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

Aim: The aim of this study was to evaluate the effect of convergence angle 12{u00B0} and 18{u00B0} of tooth preparation on the internal fit and marginal accuracy of hybrid Enamic restoration . Results: Irrespective of occlusal taper angle, totally it was found that PFM group recorded statistically non-significant (P>0.05) higher vertical marginal gap mean value (53.66± 6.59æm) than Enamic group which recorded vertical marginal gap mean value (51.95 ±5.98 æm) as indicated by two wayANOVA followed by pair-wise Tukey's post-hoc tests. Conclusions: The vertical marginal gap of hybrid ceramic improved with increasing the convergence angle of the preparation to 18{u00B0}. The vertical marginal gap of PFM showed better result with decreasing convergence angle of the preparation to 12{u00B0}.

Issued also as CD

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