نتایج جستجو برای: dental amalgam

تعداد نتایج: 162563  

Journal: :JAMA 2006
Timothy A DeRouen Michael D Martin Brian G Leroux Brenda D Townes James S Woods Jorge Leitão Alexandre Castro-Caldas Henrique Luis Mario Bernardo Gail Rosenbaum Isabel P Martins

CONTEXT Dental (silver) amalgam is a widely used restorative material containing 50% elemental mercury that emits small amounts of mercury vapor. No randomized clinical trials have determined whether there are significant health risks associated with this low-level mercury exposure. OBJECTIVE To assess the safety of dental amalgam restorations in children. DESIGN A randomized clinical trial...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان فارس - دانشکده دندانپزشکی 1380

چکیده ندارد.

2011
Neda Bahremandi Tolou Mohammadhossein Fathi Ahmad Monshi Vajihesadat Mortazavi Farzaneh Shirani

BACKGROUND Many attempts have been performed and continued for improvement of dental amalgam properties during last decades. The aim of present research was fabrication and characterization of amalgam/titania nano composite and evaluation of its corrosion behavior. MATERIALS AND METHODS In this experimental research, nano particles of titania were added to initial amalgam alloy powder and the...

2012
Irfan Ahmad

adhesive (green). _Besides the physical and mechanical properties of dental amalgam, one of the main reasons for its success is its clinical simplicity and forgiving technique. The derisory “drill and fill” slogan associated with dental treatment pertinently describes the provision of an amalgam restoration. The usual protocol for amalgam restorations is a single-stage procedure. Following deca...

Journal: :journal of dentistry, tehran university of medical sciences 0
mh. fathi v. mortazavi

statement of problem: many attempts have been made in order to evaluate the amalgam corrosion behavior as an indicator of biocompatibility. purpose: the aim of this study was to evaluate and compare the initial corrosion of four different brands of dental amalgams. materials and methods: four different types of commercial high copper dental amalgam were studied. a special mold was used and twen...

2017
Aditya Mitra

Use of mercury as a component of restorative material is continuing to generate controversy. There is no doubt that dental amalgam is a very good restorative material. However, at the same time, there are serious health issues with mercury. Whether the amount of mercury in the mouth can cause any serious effect is still very much controversial. Composite resin, the popular alternative material ...

Journal: :Journal of dental research 1980
S J Marshall G W Marshall

Although the corrosion characteristics of dental amalgam have been of considerable interest to dental researchers, it has been difficult to identify the products which form in vivo. This report demonstrates that Sn4(OH)6Cl2 and SnO are formed in vivo and in vitro. The Sn-Cl product is the predominant phase formed by corrosion-induced changes of the Sn8Hg phase of amalgam. It is present in conve...

ژورنال: مجله دندانپزشکی 2002
موسوی نسب, مصطفی, اسماعیلی پور, فرامرز ,

Dental amalgam is one of the oldest restorative materials, used in dentistry, which has undergone a lot of quality changes since its advent. Copper is one of the major elements in dental amalgam. Dental amalgam is classified as low and high cooper group based on the percentage of this element. Cinaluy is an Iranian product, a product of Shahid Faghihi's factory and its particles are spherical w...

Journal: :Journal of Medical Case Reports 2008
Fabrizia Bamonti Gianpaolo Guzzi Maria Elena Ferrero

INTRODUCTION Sudden fever of unknown origin is quite a common emergency and may lead to hospitalization. A rise in body temperature can be caused by infectious diseases and by other types of medical condition. This case report is of a woman who had fever at night for several days and other clinical signs which were likely related to cracked dental mercury amalgam. CASE PRESENTATION A healthy ...

2016
Ning Zhang Mary A.S. Melo Michael D. Weir Mark A. Reynolds Yuxing Bai Hockin H.K. Xu

A long-time drawback of dental composites is that they accumulate more biofilms and plaques than amalgam and glass ionomer restorative materials. It would be highly desirable to develop a new composite with reduced biofilm growth, while avoiding the non-esthetics of amalgam and low strength of glass ionomer. The objectives of this study were to: (1) develop a protein-repellent composite with re...

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