نتایج جستجو برای: fluoride in water

تعداد نتایج: 17085027  

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی مشهد - دانشکده دندانپزشکی 1390

objective: the objective of this study was to investigate the invitro fluoride release of four new self-adhesive resin cements; set (sdi, australia), breeze (pentron, usa), embrace wetbond (pulpdent, usa), g-cem (gc, japan) and to assess the bonding performance of these self-adhesive resin cements for bonding of orthodontic brackets. materials and methods: for fluoride release experiment, six ...

Journal: :jundishapur journal of health sciences 0
afshin maleki department of environmental health, school of health, kurdistan university of medical sciences, sanandaj, ir iran seyyed nad ali alavi bakhtiarvand department of environmental health, school of health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran seyyed nad ali alavi bakhtiarvand department of environmental health, school of health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran mehdi safari department of environmental health, school of health, kurdistan university of medical sciences, sanandaj, ir iran reza rezaee department of environmental health, school of health, kurdistan university of medical sciences, sanandaj, ir iran mohammad ali zazuli department of environmental health, school of health and research centre of health sciences, mazandaran university of medical sciences, sari, ir iran

fluoride is one of the most important elements in the composition of teeth and bones. this element can enter the body via different ways. however, drinking water is the most important way to receive fluoride by a lot of people. an increase in fluoride level in the body causes dental fluorosis and its absence leads to teeth decay. standard rate of fluoride in drinking water is determined by the ...

Journal: :avicenna journal of dental research 0
t massum pedodontist, private practice, iran f mojarrad associate professor, department of pediatric dentistry , faculty of dentistry, ham a dan university of medicalسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) k khodakarami dentist

statement of the problem generally, the main source of fluoride intake is drinking water. excessive consumption of bottled water as a substitute or in addition to the tap water supply may have implications for safe fluoride supplementation. in this study, fluoride contents in six commercial brands of bottled water were measured materials and methods six different brands of bottled drinking wate...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - پژوهشکده مهندسی فرایند 1395

abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...

Journal: :journal of dental research, dental clinics, dental prospects 0
masoumeh moslemi associate professor,pediatric department,faculty of dentistry, shahid beheshti medical science university zahra khalili shahed medicl science university,faculty of dentistry,pediatric department soraya karimi dentist mohammad mostafa shadkar shahid beheshti university,faculty of dentistry

background and aims. as a result of poor quality of public water supply in many countries, people have recently turned to bottled water consumption, the fluoride content of which is not generally consistent among different brands. this study sought to measure the fluoride concentration of public water supply in comparison with commercial brands of mineral bottled water available in tehran, iran...

Journal: :jundishapur journal of health sciences 0
mohammad ali zazuli department of environmental health, school of health and research centre of health sciences, mazandaran university of medical sciences, sari, ir iran nour mohammad beyramnezhad department of environmental health, school of health and research centre of health sciences, mazandaran university of medical sciences, sari, ir iran nour mohammad beyramnezhad department of environmental health, school of health and research centre of health sciences, mazandaran university of medical sciences, sari, ir iran ghorban mohammad onagh health centre of bandar torkman, mazandaran university of medical sciences, bandar torkman, ir iran yousof kor health centre of bandar torkman, mazandaran university of medical sciences, bandar torkman, ir iran mahmoud taghavi department of environmental health, school of health and research centre of health sciences, mazandaran university of medical sciences, sari, ir iran

fluoride is one of the most important elements in the composition of teeth and bones. this element can enter the body via different ways. however, drinking water is the most important way to receive fluoride by a lot of people. an increase in fluoride level in the body causes dental fluorosis and its absence leads to teeth decay. standard rate of fluoride in drinking water is determined by the ...

Journal: :iranian journal of pharmaceutical research 0
m amanlou m hosseinpour h azizian mr khoshayand m navabpoor e souri

fluoride is recognized as an effective agent for dental caries prevention. generally, the main source of fluoride intake is drinking water. in this study, fluoride content in 18 commercial brands of bottled waters was investigated. six samples from each batch of 18 iranian commercial brands of bottled waters were supplied. the fluoride content of samples was analyzed by fluoride ion selective e...

Journal: :iranian journal of toxicology 0
محمد نوری سپهر mohammad noori sepehr department of environmental health engineering, karaj university of medical sciences, karaj, iran هدی امیری hoda amiri department of environmental health engineering, karaj university of medical sciences, karaj, iran

background: the existence of fluoride ion in potable water has distinctive effects on human health. fluoride is attracted by positively charged calcium in teeth and bones due to its strong electro-negativity which results in dental, skeletal, and non-skeletal forms of xuorosis and associated health complaints in children as well as adults. methods: water samples from groundwater used for drinki...

Journal: :iranian journal of public health 0
k. imandel a. mesghali a. khodbandeh

some children of borazjan area have minute white flecks, yellow or brown spot areas scattered irregularly over the tooth surface, the causative factor was attributed to excess of fluoride in water. to verify this matter short chemical examination of water samples from endemic area was carried out. the results of water analysis by colorimetric method, using zirconium a1izarin reagent after disti...

Journal: :international archives of health sciences 0
a.i. amouei post address: departmental of environmental health engineering, babol university of medical sciences, ganjafrouz street, babol, iran h. faraji deputy of health services, babol university of medical sciences, babol, iran a. khalilpour environmental health research center, babol university of medical sciences, babol, iran s.h. fallah environmental health research center, babol university of medical sciences, babol, iran h.a. asgharnia environmental health research center, babol university of medical sciences, babol, iran

abstract aims: fluoride is one of the anions present in soil and water, and determining its level in drinking water is vital for preventing dental and bone diseases in societies. this research aimed to determine fluoride concentrations in drinking water sources of rural and urban areas of babol city, iran. instrument & methods: this descriptive cross-sectional study was conducted in babol city,...

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