نتایج جستجو برای: fluoride syndrome

تعداد نتایج: 641464  

Journal: :Journal of dental research 1990
K R Phipps B A Burt

This study investigated the relationship between cortical bone mass in an older female population and their ingestion of fluoride from community water supplies. The study was conducted among lifelong female residents in Lordsburg (3.5 ppm fluoride) and Deming (0.7 ppm fluoride), NM. A total of 151 postmenopausal women ranging in age from 39 to 87 years took part; 69 were residents of the optima...

Journal: :Journal of oral science 2017
Sumalee Boonviriya Sissada Tannukit Suwanna Jitpukdeebodintra

This in vitro study aimed to investigate the efficacy of tannin-fluoride and milk-fluoride mixtures on human enamel erosion after exposure to inappropriately chlorinated pool water. Enamel specimens were immersed in swimming pool water (pH 2.7) for 30 min and in each test reagent for 4 min once a day for 60 consecutive days (group I: control, group II: tannin-fluoride, group III: milk-fluoride,...

Journal: :Nuclear medicine communications 2012
Yuxin Li Gholam R Berenji Wisam F Shaba Bashir Tafti Ella Yevdayev Simin Dadparvar

OBJECTIVE The feasibility of a fluoride positron emission tomography/computed tomography (PET/CT) scan for imaging atherosclerosis has not been well documented. The purpose of this study was to assess fluoride uptake of vascular calcification in various major arteries, including coronary arteries. METHODS We retrospectively reviewed the imaging data and cardiovascular history of 61 patients w...

بذرافشانی, محمدرضا, جهانی مقدم, فاطمه, حالی, هاله,

Background and purpose: Several factors are involved in caries prevention in children. One of the most effective factors is the appropriate use of fluoride. Fluoride induces its main effects in caries prevention through antibacterial effects and topical contact with enamel. In this study the inhibitory effects of sodium fluoride (NaF) and acidulated phosphate fluoride (APF) gels on cariogenic m...

2007
Lennart Krook

Since serum alkaline phosphatase increases in fluoride therapy for osteoporosis, it is generally accepted that fluoride stimulates bone formation. However, histochemical studies have shown that alkaline phosphatase is also increased in resorbing osteocytes. Fluoride is toxic to metabolically active bone cells, alkaline phosphatase is released, and serum alkaline phosphatase increases. We propos...

2011
Marian Kjellevold Malde Ruth Scheidegger Kåre Julshamn Hans-Peter Bader

CONTEXT Dental and skeletal fluorosis is endemic in the Ethiopian Rift Valley. Children are especially vulnerable to excessive fluoride intake because their permanent teeth are still being formed. Strategies to reduce the total fluoride intake by children are thus warranted. CASE PRESENTATION By combining the results of field studies in Ethiopia, the relevant pathways for fluoride intake have...

Journal: :Infection and immunity 1984
J S van der Hoeven H C Franken

The aim of this study was to measure the effect of fluoride on the production of organic acids by Streptococcus mutans in dental plaque. The effect was studied in a simplified model of dental plaque with gnotobiotic rats monoinfected with S. mutans Ny341. Adaptation of S. mutans to fluoride was induced by feeding one group of the rats on fluoride-containing diet and drinking water. No differenc...

Journal: :European journal of orthodontics 2007
Song Li Ross S Hobson Yuxing Bai Zhuoqun Yan Thomas E Carrick John F McCabe

The aim of this study was to manufacture and test, in vitro, a novel modification to provide fluoride-releasing orthodontic brackets. Thirty-two orthodontic brackets were drilled to produce a recess (approximately 1.3 mm in diameter and 0.7 mm in depth) at the centre of the bracket base. Four materials, with and without the addition of sodium fluoride, a glass ionomer cement (Ketac Cem micro), ...

2013
Vikas C. Desai Rajendra Reddy Hussain Saheb Shaik

Dental caries is the most common oral disease seen in children and adolescents. This study was conducted to assess prevalence of dental caries at different water fluoride levels in Nalgonda district of Andhra Pradesh. A total of 1800 school children aged 12-15 years were selected by stratified cluster sampling from three areas with different levels of natural fluoride concentrations in drinking...

2012
P.V. Kotecha S.V. Patel K.D. Bhalani D. Shah V.S. Shah K.G. Mehta

BACKGROUND & OBJECTIVES Endemic fluorosis resulting from high fluoride concentration in groundwater is a major public health problem in India. This study was carried out to measure and compare the prevalence of dental fluorosis and dental caries in the population residing in high and normal level of fluoride in their drinking water in Vadodara district, Gujarat, India. METHODS A cross-section...

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