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
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 / تأثير زاوية الميل عند تحضير السن على التطابق الداخلى ودقة الحواف للتعويضات المهجنة الاينمك بالتعويضات المعدنية المخزفة : دراسة معملية Heba Mustafa Mahroos ; Supervised Rabab Mohamed Ibrahim , Gehan Alnagar - Cairo : Heba Mustafa Mahroos , 2015 - 96 P. : charts , facsimiles ; 25cm
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 and 18 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. The vertical marginal gap of PFM showed better result with decreasing convergence angle of the preparation to 12.
Hybrid ceramic Internal fit Marginal gap
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 / تأثير زاوية الميل عند تحضير السن على التطابق الداخلى ودقة الحواف للتعويضات المهجنة الاينمك بالتعويضات المعدنية المخزفة : دراسة معملية Heba Mustafa Mahroos ; Supervised Rabab Mohamed Ibrahim , Gehan Alnagar - Cairo : Heba Mustafa Mahroos , 2015 - 96 P. : charts , facsimiles ; 25cm
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 and 18 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. The vertical marginal gap of PFM showed better result with decreasing convergence angle of the preparation to 12.
Hybrid ceramic Internal fit Marginal gap