نتایج جستجو برای: dental alloy
تعداد نتایج: 212737 فیلتر نتایج به سال:
Previous studies have utilized in vitro alloy cytotoxicity tests to evaluate dental casting alloys. The purposes of this study were to: (1) evaluate the precision of the optical density and visual tests previously used, (2) evaluate a new test measuring absorbance of solubilized formazan dyes, and (3) test the correlation between these tests for cytotoxicity. Balb/c 3T3 cells were plated in 24-...
Introduction: One of scientific concern is increasing of unwanted neutron dose to the patient, in head and neck radiation therapy due to the presence of some isotopes in dental restorations and head of medical linac. The aim of this study is to measure the equivalent dose of thermal and fast neutron due to head of Siemens Primus Linac and a healthy tooth, Amalgam, Ni-Cr alloy a...
T. Puskar, Department of Dentistry, Medical Faculty, University of Novi Sad, Serbia. A. Lapcevic, D. Jevremovic, Clinic for Prosthodontics, School of Dentistry Pančevo, University Business Academy, Novi Sad, Serbia. S. Arandjelovic, S. Radulovic, Institute for Oncology and Radiology of Serbia, Belgrade, Serbia. I. Budak, Dj. Vukelic, Faculty of Technical Sciences, University of Novi Sad, Novi S...
The purpose of this study was to determine the galvanic interaction between pure titanium, a CoCrMo alloy, as well as their galvanic interaction with a high copper and a conventional amalgam at different area ratios. Pure titanium, a CoCrMo alloy and two dental amalgams with different copper compositions were tested in this study in 0.9% NaCl environment of pH 7. Polarization curves were record...
This study evaluated the shear bond strength, failure modes, and confocal microscopy of two different amalgam alloy restorations lined with five adhesive systems. Two regular-set high-copper dental amalgam alloys, Amalcap Plus and Valiant Ph.D, and five commercially available adhesive systems were selected. One hundred and twenty freshly-extracted human third molars were used for the study. The...
INTRODUCTION In the 1960’s Brånemark successfully pioneered the use of transcutaneous implants in the dental field, however subsequent attempts to translate these findings into a solution for amputees have been beset with complications. Infection is the primary failure modality because the skin breach provides a route for pathogens to enter the body. Intraosseous transcutaneous amputation prost...
CaptekTM (capillary technology) is an advanced metallurgic system that was developed to combine optimal natural esthetics of dental porcelain with the strength of ceramometal , to produce accurate restorations on all types of tooth preparation and provide a biocompatible environment for the oral tissues in simple and affordable procedures. CaptekTM restorations include inlays, onlays, crowns, a...
IT HAS been well established that the characteristics of dental amalgams are subject to wide variation as the result of changes in formulae, manufacturing methods, and trituration and packing procedures. Trituration and packing procedures are under the control of the operator. In any given alloy we expect to find that undertrituration will produce low crushing strength, high flow and higher tha...
Dental implants are widely used and are a predictable treatment in various edentulous cases. Occlusal overload may be causally related to implant bone loss and a loss of integration. Stress concentrations may be diminished using a mechanobiologically integrated implant with bone tissue. The purpose of this study was to investigate the biomechanical behavior, biocompatibility and bioactivity of ...
One of the primary reasons for the development of base metal alloys for dental applications has been the escalating cost of gold throughout the 20th century. In addition to providing lower cost alternatives, these nonprecious alloys were also found to provide better mechanical properties and aesthetics for some oral applications. Additionally, certain base metal alloy systems are preferred beca...
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