نتایج جستجو برای: dental amalgam

تعداد نتایج: 162563  

Journal: :Journal 2002
Albert O Adegbembo Philip A Watson Stanley J Lugowski

OBJECTIVE To determine the amount of amalgam entering the waste stream during removal of dental amalgam restorations. METHODS Dental amalgam restorations were removed from anatomic replica teeth and natural teeth by means of a tungsten carbide bur, a high-speed handpiece and a conventional suction system. The weight of amalgam particles trapped in the primary and secondary solids separators w...

Journal: :journal of dental research, dental clinics, dental prospects 0
faezeh ghaderi ali mardani

background and aims. the majority of failures in class ii amalgam restorations occur in the first primary molar teeth; in addition, use of compomer instead of amalgam for primary molar teeth restorations is a matter of concern. the aim of the present study was to compare the success rate of class ii compomer and amalgam restorations in the first primary molars. materials and methods. a total of...

Journal: :iranian journal of radiology 0
ozlem marti akgun department of pediatric dentistry, gulhane medical academy, ankara, turkey; department of pediatric dentistry, gulhane medical academy, ankara, turkey. tel: +90-3123041462 gunseli guvenpolat department of pediatric dentistry, gulhane medical academy, ankara, turkey ahmet turanillca department of radiology, izmir mevki military hospital, izmir, turkey ceren yildirim department of pediatric dentistry, gulhane medical academy, ankara, turkey pervin demir department of biostatistics and medical informatics, yildirimbeyazit university, ankara, turkey feridun basak department of pediatric dentistry, gulhane medical academy, ankara, turkey

conclusions the results of this study suggest that mri does not increase microleakage of amalgam restorations. results in teeth with amalgam filling, there were no significant differences of occlusal and gingival surface microleakage after mri exposure. occlusal and gingival surface microleakages were also similar with and without mri in teeth with bonded amalgam filling. materials and methods ...

2017
Stephen M. Koral

Dentists all over the world remove millions of amalgam fillings every day, with no regard for the possible mercury exposure that can result from grinding them out. Much of the time, a new amalgam filling goes back in place of the old one. The dental establishment claims that amalgam is a stable material, that emits little or no mercury, but then turns around and blames the mercury–free dentists...

2017

Dentists all over the world remove millions of amalgam fillings every day, with no regard for the possible mercury exposure that can result from grinding them out. Much of the time, a new amalgam filling goes back in place of the old one. The dental establishment claims that amalgam is a stable material, that emits little or no mercury, but then turns around and blames the mercury–free dentists...

2017
Hiba S Al-Amodi Heba M Adly Abeer Ahmed ALrefai Amal Zaghloul

Studies showed that dentists and dental staff working with amalgam are chronically exposed to mercury that accumulates in their bodies in higher levels than those individuals not occupational exposed to mercury. Mercury levels in dental staff averaged at least 2 times that of control subjects in hair, nails, urine and blood. This study aimed to review long-standing mercury monitoring concentrat...

Journal: :Community dentistry and oral epidemiology 2018
Po-Yen Lin Jui Wang Yu-Chih Chiang Chen-Yin Lai Hong-Ji Chang Lin-Yang Chi

OBJECTIVES Dental amalgam has been used as a common restorative material since the 1800s, but concerns have been raised regarding its purported neuropsychological effects due to the neurotoxicity of mercury. In this study, a nationwide population-based database was employed to investigate the association of dental amalgam restoration with the risk of attention-deficit/hyperactivity disorder (AD...

2017
Gholam H. Ramezani Mona-Momeni Moghadam Mohammad-Ali Saghiri Franklin Garcia-Godoy Armen Asatourian Mohsen Aminsobhani Mark Scarbecz Nader Sheibani

BACKGROUND To evaluate the effect of dental amalgam and composite restorations on total antioxidant capacity (TAC) and calcium (Ca) ion concentration of unstimulated saliva. MATERIAL AND METHODS Forty-eight children aged 6-10 years selected and divided into three groups of sixteen (8 males, 8 females). In group A and B, samples consisted of two class II dental composite or amalgam restoration...

Journal: :The international journal of occupational and environmental medicine 2014
S M J Mortazavi M Neghab S M H Anoosheh N Bahaeddini G Mortazavi P Neghab A Rajaeifard

Mercury is among the most toxic nonradioactive elements which may cause toxicity even at low doses. Some studies showed release of mercury from dental amalgam fillings in individuals who used mobile phone. This study was conducted to assess the effect of high-field MRI on mercury release from dental amalgam filling. We studied two groups of students with identical tooth decays requiring a simil...

2010
Koufuchi Ryo Atsuko Ito Rie Takatori Yoshinori Tai Junji Tokunaga Kazumune Arikawa Takashi Yamada Keiko Shinpo Hiroshi Yasuda Ichiro Saito

14 To examine possible association between dental amalgam fillings and mercury burden, we measured the mercury concentrations in scalp hair samples from 74 female Japanese subjects aged 26-64 years who had a dietary habit of little fish-consumption. The hair mercury concentrations in the subjects with multiple amalgam fillings were significantly higher than those in the subjects with no amalgam...

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