نتایج جستجو برای: silver mercury amalgam

تعداد نتایج: 87541  

Journal: :journal of dental research, dental clinics, dental prospects 0
mahmoud bahari assistant professor, dental and periodontal research center, faculty of dentistry, tabriz university of medical sciences parnian alizadeh oskoee 3- associate professor, department of operative dentistry, school of dentistry, tabriz university of medical sciences, tabriz, iran. siavash savadi oskoee 4- professor, dental and periodontal research center, tabriz university of medical sciences, tabriz, iran. firoz pouralibaba assistant professor, department of oral medicine, tabriz university of medical sciences, tabriz, iran. ali morsal ahari 6- postgraduate student, department of endodontics, isfahan azad university of medical sciences, isfahan, iran

background and aim(s): since it is possible for carbamide peroxide (cp) bleaching agent to contact with amalgam restorations in the oral cavity, the present in vitro study evaluated the amount of dissolved mercury released from amalgam restorations with various percentages of silver content subsequent to the use of 15% cp. materials and methods: thirty ana 2000 amalgam disks with 43.1% silver c...

2016
Mahmoud Bahari Parnian Alizadeh Oskoee Siavash Savadi Oskoee Firoz Pouralibaba Ali Morsali Ahari

Background. Since it is possible for carbamide peroxide (CP) bleaching agent to contact old amalgam restorations, the present in vitro study evaluated the amount of dissolved mercury released from amalgam restorations with various percent-ages of silver content subsequent to the use of 15% CP. Methods. Thirty ANA 2000 amalgam disks with 43.1% silver content and thirty ANA 70 amalgam disks with ...

2017

The largest source of mercury located in dental amalgam fillings people. In this study, mercury level in saliva of amalgam and non-amalgam human were compared as well as the level of α amylase has been detected. Materialsand methods: The concentration of mercury, silver, and activity of amylase in saliva were measured in 55 adult study subjects. The mercury contents were determined by cold–vapo...

Journal: :The Journal of prosthetic dentistry 2001
B I Cohen B Penugonda

STATEMENT OF PROBLEM The use of dental amalgam as a direct restorative material has been a subject of controversy for many years. The potential safety of amalgam has been questioned because of leakage of elements such as mercury, copper, tin, and silver. PURPOSE This study evaluated the elemental leaching from Tytin dental amalgam placed in deionized water for 2 months. Both mercury vapor and...

2011
Djenaine De Souza Lucia H. Mascaro Orlando Fatibello-Filho

This work reports a comparative electrochemical behaviour study and p-nitrophenol analytical detection using silver solid amalgam, hanging dropping mercury, and silver electrodes. For this, square wave voltammetry was employed, where the analytical responses and the redox mechanisms could be compared for reduction processes of 4-nitrophenol by analysis of the voltammetric responses. The analyti...

Journal: :Journal of dental research 1969
S H Wei M J Ingram

The electron microprobe was used to study tooth discoloration caused by old silver amalgam fillings. Oscilloscopic displays were obtained for the distribution of tin, silver, and mercury. In addition, a linear graphic display technic on the Enhancitron was used. The oscilloscopic displays showed the migration of tin from the amalgam into the enamel and dentin as opposed to silver or mercury, or...

2013
Daniel J Dutton Ken Fyie Peter Faris Ludovic Brunel JC Herbert Emery

OBJECTIVE The objective of this study was to quantify the relationship between number of dental amalgam surfaces and urinary mercury levels. METHODS This study uses participant data from a large philanthropic chronic disease prevention program in Calgary, Alberta, Canada. Urine samples were analysed for mercury levels (measured in μg/g-creatinine). T-tests were used to determine if difference...

Journal: :journal of dentistry, tehran university of medical sciences 0
z. khamverdi associate professor, dental research center, hamadan university of medical sciences, hamadan, iran sh. ebadi assistant professor, department of operative dentistry, school of dentistry, hamadan university of m m. movahhed rad dentist, department of operative dentistry, school of dentistry, hamadan university of medical scien sh. kasraei associate professor, dental research center, hamadan university of medical sciences, hamadan, iran

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...

Journal: :The journal of contemporary dental practice 2010
Shahin Kasraei Loghman Rezaei-Soufi Mohaddese Azarsina

AIM The aim of this study was to investigate the effect of 16 percent carbamide peroxide gel on mercury and silver ions released from admixed and spherical dental amalgams. METHODS AND MATERIALS A total of 96 amalgam discs were prepared from two different types and brands of dental amalgam (admixed and spherical). The samples were stored at room temperature in glass tubes containing distilled...

2015
Essam Soussa

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...

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