نتایج جستجو برای: bridge abutment

تعداد نتایج: 62223  

Journal: :Journal of King Saud University - Engineering Sciences 2016

ژورنال: مجله دندانپزشکی 2016
سیادت, حکیمه, شمشیری, احمدرضا, عامری, نرگس, علی‌ خاصی, مرضیه,

Background and Aims: Marginal accuracy is a crucial factor influencing the clinical long-term reliability of implant-supported fixed dental prostheses (FDPs). The aim of this in vitro study was to evaluate the marginal fit of three-unit zirconia bridge frameworks fabricated using two different computer-aided design (CAD)/ computer-aided manufacturing (CAM) systems (AmannGirrbach and Zirkonzahn...

2003
Robert Ettema Tatsuaki Nakato

The paper describes the range of scour types that may occur at bridge abutments, and addresses the extensive attendant difficulties confronting accurate estimation of abutment-scour depth. The difficulties, which include similitude aspects of laboratory experiments on scour at bridge abutments, complicate the development of reliable scour-estimation relationships. In a practical sense, the diff...

Journal: :Nihon Hotetsu Shika Gakkai zasshi 1990
S Kataoka K Iwai Y Ishihara M Amari K Ohshima

Stress analysis of bridge abutment teeth having cemented dowels was conducted using a two-dimensional finite element method. The results obtained are as follows: 1. In fixed-fixed bridges, compressive stress was found concentrated within the dowel, on the mesial side of the dowel apex, and in the distocervical part of the crown. 2. In cantilever bridges, tensile stress was found concentrated in...

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