نتایج جستجو برای: marginal areas
تعداد نتایج: 440087 فیلتر نتایج به سال:
According to the CORINE programme, Spain and Portugal are the Mediterranean countries in the European Union facing the greatest risk of erosion (Desir & Marín, 2007). In Portugal, areas at high risk of erosion cover almost one third of the country (Grimm et al., 2002). The main causes of soil erosion are inappropriate agricultural practices, land abandonment, deforestation, overgrazing, forest ...
An evaluation of the marginal integrity of porcelain fused to base metal crowns after extension of porcelain to the border of the margin Dr. Sh. Rokni* - Dr. M. Seifi** - Dr. A. Eizadi *** *- Professor & Head of Prosthodontics Dept. Faculty of Dentistry – Mashhad University of Medical Sciences. **- Assistant Professor of Prosthodontics Dept. Faculty of Dentistry – Mashhad University of Medical ...
Trade-off reviews the rate of marginal substitution of inputs and outputs onto the efficient frontier. On the other hand, marginal rates of substitution (MRS) are important quantities for analysts and managers. In this paper, by changing the method of Asmild (2004), an algorithm is found that it can be used to calculate the marginal rate of the free disposal hull (FDH) model.
Background and Aims: Marginal adaptation is important for the long-term success of full-coverage restorations. Preparation design is one of the important factors influencing the marginal integrity. Therefore, the purpose of this study was to compare the effect of radial shoulder and chamfer finish line designs on the marginal adaptation of all-ceramic Cercon restorations.Materials and Methods: ...
Background and Aims: Marginal gap measurement in all ceramic restorations they are of fundamental important for the successful used. As some studies led to contradiction results, yhe aim of this study is to compare marginal gap restorations between 4 kinds of ceramic restorations Inceram, IPS-e.max Press, Zirconia (CAD/CAM) and PFM. Materials and Methods: In this In-vitro experimental research...
سابقه و هدف: یکی از مهم ترین شاخص های مقبولیت کلینیکی و دوام رستوریشن های ریختگی تطابق مارجینالی آنهاست. عدم وجود آن به اکسپوژر لایه سمان، حل شدن آن، تجمع پلاک باکتریال، عود پوسیدگی و التهاب بافت های لثه منجر می گردد. هدف از انجام این تحقیق ارزیابی تاثیر نوع خط خاتمه تراش بر میزان marginal discrepancy بود. مواد و روش ها: در این مطالعه تجربی آزمایشگاهی، سه عدد دای فلزی به روش شبیه سازی تهیه، یکی...
Introduction: Marginal fit is a key factor for long term clinical success through any dental restorations. Poor marginal adaptation causes cement dissolution. This can lead to dental caries, gingival irritation, periodontal diseases, and finally treatment failure. The aim of this study was measurement and comparison of marginal gap quantities in metal ceramic and all ceramic dental restorations...
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