The brittleness of dental amalgam limits its use to sites in which tensile stresses can be kept at a minimum. If the cause for the brittleness could be ascertained, then an approach to correct this problem could be devised. Physical properties of metals are ultimately manifested in, and can be explained by, their microstructure. Through the work of several researchers,1-3 means of identifying t...

For many years, amalgam was the preferred repair material; however, because of worries about aesthetics, mercury toxicity, and development lichenoid diseases, its use has decreased. The oral mucosa a reaction known as lesion (OLL). Dental materials, particularly amalgam, medications, graft-versus-host disease (GVHD), are among backgrounds OLL. When restorative most frequently come into close to...

Submit Manuscript | http://medcraveonline.com J Dent Health Oral Disord Ther 2015, 2(3): 00052 researched mercury poisoning and identified through his research that silver amalgam fillings in the mouth were a source of mercury vapor. More recently, many studies reported that amalgam may constitute potential toxic hazards to patients through mercury release and absorption, surface corrosion, and...

The results of this study indicate that proper amalgam removal and, in some cases, removal of all the other metals and replacement with biocompatible composites can eliminate or reduce 80% of the classic symptoms of chronic mercury poisoning. These results also show that the strength of an individual’s serum-globulin reaction, to many metals used in dentistry, especially the five metals present...

objective: bleaching of the teeth is considered as a safe, effective, and conservative procedure to treat discolored teeth. the aim of the present study was to compare the amount of mercury and silver released from amalgam after applying two brands of carbamide peroxide 16% bleaching gel. materials and methods: for this experimental study, 384 amalgam tablets were prepared. the samples were kep...

Introduction: Presence of dental filling material (DFM) such as amalgam in treatment patient with nasopharyngeal cancer (NPC) is common. Streaking artifact Arising from this high density material in computed tomography (scan), may lead to perturbation in dose calculation and dose delivery. Widespread performance of intensity-modulated radiotherapy (IMRT) for NPC using anterior...

BACKGROUND Dental waste can be hazardous to humans and the environment. OBJECTIVE To determine the current status of dental waste management in private and public dental clinics and private dental offices in Shiraz, southern Iran. METHODS This cross-sectional study was conducted at the Shiraz University of Medical Sciences from February through June 2013. A stratified random sampling method...

BACKGROUND The main forms of mercury (Hg) exposure in the general population are methylmercury (MeHg) from seafood, inorganic mercury (I-Hg) from food, and mercury vapor (Hg0) from dental amalgam restorations. While the distribution of MeHg in the body is described by a one compartment model, the distribution of I-Hg after exposure to elemental mercury is more complex, and there is no biomarker...

Aim: To compare marginal seal at tooth-material and material-material interfaces in the proximal box in combined amalgam/composite resin restorations. Methods: Mesio-occlusal-distal (MOD) cavities were prepared in 35 premolars and permanent molars with carbide bur. The distal proximal box was restored with amalgam (Permite, SDI) until reaching the height of pulpal floor. Dental tissues were etc...