This document provides a history of fluoride use and water fluoridation. It discusses key events like the discovery of fluoride's benefits for dental health in the early 1900s. It also summarizes debates around optimal fluoride levels and risks of dental and skeletal fluorosis. The National Academy of Sciences concluded the maximum contaminant level should be lowered and that water fluoridation's risks and benefits need re-evaluating given new evidence on other potential effects.
IRJET- A Review on Removal of Fluoride in WaterIRJET Journal
This document reviews various methods for removing fluoride from drinking water. It begins by discussing the sources and health effects of fluoride contamination in water supplies. Fluoride occurs naturally but can also come from industrial and agricultural sources, and too much fluoride intake can cause dental and skeletal fluorosis in humans as well as health issues in animals. The document then examines several techniques for defluoridation, including coagulation/precipitation, reverse osmosis, nanofiltration, electrodialysis, ion exchange, electrocoagulation, and adsorption. Coagulation/precipitation involves adding chemicals to form fluoride precipitates and is commonly used but has low removal efficiency. Other methods like ion exchange and adsorption can more effectively reduce
11.a review of what is known about impacts of coastal pollution on childhood ...Alexander Decker
This document reviews what is known about the impacts of coastal pollution on childhood disabilities and adverse pregnancy outcomes. It discusses how coastal pollution, including heavy metals, chemicals, and radioactive substances from industrial waste and other sources, can accumulate in seafood and soils and enter the human food chain. Children and pregnant women are especially vulnerable to these environmental pollutants due to the developing physiology of fetuses and children. Epidemiological studies have found associations between coastal pollution exposures and increased risks of neurological impairments in children as well as unexpected pregnancy outcomes, but the evidence is still limited and inconclusive. Further research is needed to better understand these relationships.
A review of what is known about impacts of coastal pollution on childhood dis...Alexander Decker
This document reviews what is known about the impacts of coastal pollution on childhood disabilities and adverse pregnancy outcomes. It discusses how coastal pollution, including heavy metals, chemicals, and radioactive substances from industrial waste and other sources, can accumulate in seafood and the food chain and pose long-term health risks, especially for children and pregnant women. Over 60% of the world's population lives in coastal areas and faces these risks. The review examines evidence that heavy metal and chemical pollution has been linked to conditions like Minamata disease and Itai-itai disease, as well as increased risks of neurological and developmental issues in children whose mothers were exposed during pregnancy. However, more epidemiological studies are still needed to better understand these impacts.
This document provides an overview of fluorides in dentistry. It discusses the chemistry and sources of fluoride, including water, food, air and consumer products. It describes the metabolism and distribution of fluoride in the body, including deposition in bones and teeth. The historical evidence supporting the role of fluoride in preventing dental caries is presented. The mechanisms of action are explained, such as fluoride incorporation into dental tissues and its cariostatic effects. Methods of delivering fluoride to the population to prevent tooth decay are covered, including water fluoridation and professionally or self-applied topical fluorides. Potential toxicity at high levels is also mentioned.
Fluoride is a mineral that is naturally present in varying amounts in water sources. Studies from the early 20th century found correlations between fluoride levels in water and rates of dental caries as well as dental fluorosis. This led to further research demonstrating that optimal levels of fluoride in community water supplies could reduce rates of dental caries. Several large-scale studies in the 1940s-1960s provided strong evidence that water fluoridation at levels around 1 part per million can reduce dental caries by around 25% on average. Fluoride works both systemically during tooth development before eruption and topically on tooth surfaces after eruption to strengthen enamel and make it more resistant to decay.
This document discusses fluorides and their role in preventing dental caries. It begins with a brief history of fluoride research from the early 20th century and describes how fluoride strengthens tooth enamel and inhibits the cariogenic bacteria. It then discusses various methods of fluoride administration including water fluoridation, salt fluoridation, milk fluoridation and topical fluoride applications. Water fluoridation at 0.7-1.2 ppm is described as the most effective method for community-wide caries prevention, while topical fluorides provide localized protection when applied directly to the teeth. The document outlines the metabolism, mechanisms of action, and non-dental benefits of systemic fluoride intake.
Fluoride helps prevent tooth decay through several mechanisms. It inhibits demineralization, promotes remineralization, alters the action of plaque bacteria, and improves enamel crystallinity and reduces solubility. Both pre-eruptive and post-eruptive exposure to fluoride provides caries prevention benefits, with maximal effects seen from high exposure both before and after tooth eruption. Community water fluoridation was first introduced in the 1940s and has been shown to reduce tooth decay rates by 40-59% in both primary and permanent teeth.
Presentation on Health and Environmental Impacts of water fluoridation 2012Declan Waugh
This presentation examines why several European countries stopped fluoridating their drinking water supplies. Denmark banned fluoridation when its environmental agency pointed out long-term effects of low fluoride intake were unknown. Sweden also rejected fluoridation on the recommendation of a commission that found combined long-term environmental effects of fluoride were insufficiently known. Studies in Sweden, Germany, and the US have found that excessive fluoride intake can cause dental and skeletal fluorosis, and may increase risks of bone fractures and joint stiffness. Risks are greater for babies and young children, as fluoride is more readily absorbed and retained in developing bones. Total fluoride intake from all sources needs further study to properly assess risks versus benefits.
IRJET- A Review on Removal of Fluoride in WaterIRJET Journal
This document reviews various methods for removing fluoride from drinking water. It begins by discussing the sources and health effects of fluoride contamination in water supplies. Fluoride occurs naturally but can also come from industrial and agricultural sources, and too much fluoride intake can cause dental and skeletal fluorosis in humans as well as health issues in animals. The document then examines several techniques for defluoridation, including coagulation/precipitation, reverse osmosis, nanofiltration, electrodialysis, ion exchange, electrocoagulation, and adsorption. Coagulation/precipitation involves adding chemicals to form fluoride precipitates and is commonly used but has low removal efficiency. Other methods like ion exchange and adsorption can more effectively reduce
11.a review of what is known about impacts of coastal pollution on childhood ...Alexander Decker
This document reviews what is known about the impacts of coastal pollution on childhood disabilities and adverse pregnancy outcomes. It discusses how coastal pollution, including heavy metals, chemicals, and radioactive substances from industrial waste and other sources, can accumulate in seafood and soils and enter the human food chain. Children and pregnant women are especially vulnerable to these environmental pollutants due to the developing physiology of fetuses and children. Epidemiological studies have found associations between coastal pollution exposures and increased risks of neurological impairments in children as well as unexpected pregnancy outcomes, but the evidence is still limited and inconclusive. Further research is needed to better understand these relationships.
A review of what is known about impacts of coastal pollution on childhood dis...Alexander Decker
This document reviews what is known about the impacts of coastal pollution on childhood disabilities and adverse pregnancy outcomes. It discusses how coastal pollution, including heavy metals, chemicals, and radioactive substances from industrial waste and other sources, can accumulate in seafood and the food chain and pose long-term health risks, especially for children and pregnant women. Over 60% of the world's population lives in coastal areas and faces these risks. The review examines evidence that heavy metal and chemical pollution has been linked to conditions like Minamata disease and Itai-itai disease, as well as increased risks of neurological and developmental issues in children whose mothers were exposed during pregnancy. However, more epidemiological studies are still needed to better understand these impacts.
This document provides an overview of fluorides in dentistry. It discusses the chemistry and sources of fluoride, including water, food, air and consumer products. It describes the metabolism and distribution of fluoride in the body, including deposition in bones and teeth. The historical evidence supporting the role of fluoride in preventing dental caries is presented. The mechanisms of action are explained, such as fluoride incorporation into dental tissues and its cariostatic effects. Methods of delivering fluoride to the population to prevent tooth decay are covered, including water fluoridation and professionally or self-applied topical fluorides. Potential toxicity at high levels is also mentioned.
Fluoride is a mineral that is naturally present in varying amounts in water sources. Studies from the early 20th century found correlations between fluoride levels in water and rates of dental caries as well as dental fluorosis. This led to further research demonstrating that optimal levels of fluoride in community water supplies could reduce rates of dental caries. Several large-scale studies in the 1940s-1960s provided strong evidence that water fluoridation at levels around 1 part per million can reduce dental caries by around 25% on average. Fluoride works both systemically during tooth development before eruption and topically on tooth surfaces after eruption to strengthen enamel and make it more resistant to decay.
This document discusses fluorides and their role in preventing dental caries. It begins with a brief history of fluoride research from the early 20th century and describes how fluoride strengthens tooth enamel and inhibits the cariogenic bacteria. It then discusses various methods of fluoride administration including water fluoridation, salt fluoridation, milk fluoridation and topical fluoride applications. Water fluoridation at 0.7-1.2 ppm is described as the most effective method for community-wide caries prevention, while topical fluorides provide localized protection when applied directly to the teeth. The document outlines the metabolism, mechanisms of action, and non-dental benefits of systemic fluoride intake.
Fluoride helps prevent tooth decay through several mechanisms. It inhibits demineralization, promotes remineralization, alters the action of plaque bacteria, and improves enamel crystallinity and reduces solubility. Both pre-eruptive and post-eruptive exposure to fluoride provides caries prevention benefits, with maximal effects seen from high exposure both before and after tooth eruption. Community water fluoridation was first introduced in the 1940s and has been shown to reduce tooth decay rates by 40-59% in both primary and permanent teeth.
Presentation on Health and Environmental Impacts of water fluoridation 2012Declan Waugh
This presentation examines why several European countries stopped fluoridating their drinking water supplies. Denmark banned fluoridation when its environmental agency pointed out long-term effects of low fluoride intake were unknown. Sweden also rejected fluoridation on the recommendation of a commission that found combined long-term environmental effects of fluoride were insufficiently known. Studies in Sweden, Germany, and the US have found that excessive fluoride intake can cause dental and skeletal fluorosis, and may increase risks of bone fractures and joint stiffness. Risks are greater for babies and young children, as fluoride is more readily absorbed and retained in developing bones. Total fluoride intake from all sources needs further study to properly assess risks versus benefits.
This document provides an overview of fluorides and oral health in developed and developing countries. It discusses the historical evolution of fluoride and how it relates to reducing dental caries. Different methods of fluoride delivery are examined, including water fluoridation, salt fluoridation, and fluoridated toothpaste. The global scenarios of water fluoridation and excess fluoride in drinking water are also reviewed. The document evaluates the role of fluoride in dental caries prevention, remineralization, periodontal health, and orthodontic anomalies. Both community-based and professionally applied topical fluoride are discussed in relation to developed and developing countries.
Fluoride is: natural mineral that helps build strong teeth and prevent cavities
Fluoride treatment; is typically professional treatment containing high concentration of fluoride that dentist or hygienist will apply to a person’s teeth to improve health and reduce the risk of cavities
Benefits of fluoride treatment:
1- Slow or reverse the development of cavities by harming bacteria that cause cavities.
2- Join into tooth structure when tooth develop to strengthen the enamel surface
3- Helps body, better use mineral such as Ca and phosphate, the teeth reabsorb these mineral to repair weak tooth enamel
Side effect of fluoride:
1- Tooth discoloration
2- Allergies or irritation
3- Toxic effect: if person apply it incorrectly or at high doses: nausea, diarrhea, excessive sweating
Common source of dietary fluoride:
Tea, water, sea food, fish eaten with their bones
Grape juice, food cooked in water.
Optimal fluoride intake:
Birth to 3 years: ---- 0.1 to 1.5 mg
4 years of age: ------1 to 2,5mg
7 years of age: ------ 1.5 to 2.5mg
Adolescent and adult: --- 1.5 to 4mg
History:
1802: Sir James Crichton Browne, the 1st hint of possible connection of fluoride and dental health
1901: Fredrek Mckay: present in permanent stains on teeth known as mottled enamel
1902: J.M Eager: stains on teeth
1916: Green Vardmin Black: support the Mckay work with histologic evidence, reported as endemic imperfection of enamel
Fluoride application procedures:
1- Fluoride prophylaxis pastes:
The use of cleaning and polishing pastes (pumic, zircate) and other comparable abrasive pastes before cementing orthodontic bands may lead to removal of significant amount of surface enamel which has more resistant layer and provide a significant amount of fluoride to support enamel surface.
2- Topical fluoride solution:
The most commonly used topical solutions are;
Sodium fluoride –2% neutral
Acidulated sodium fluoride at PH3 and 1.2 fluoride
8% --10% stannous fluoride.
3- Fluoride gel:
Are available in; sodium fluoride, acidulated sodium fluoride, stannous fluoride
4- Fluoride mouth rinse
5- Fluoride tablets:
Fluoride administration as pills or tablets (0.5 ---1mg/day) according to age show caries reduction in permanent teeth of 20 --- 40% when started at 6 –9 years of age
6- Fluoride dentifrices:
There are large number of dentifrices in market as, sodium fluoride, stannous fluoride, amine fluoride
Sodium monofluorophosphate
The regular use of fluoride dentifrices should be recommended to all patients undergoing orthodontic treatment in addition to other forms of fluoride administration
7- Fluoride cements:
Silicate cements restoration slowly release fluorides and protect surrounding enamel from secondary caries
8- Fluoride varnish:
Topical application of fluoride predisposes to the formation of readily soluble Ca fluoride crystals on the enamel surface
9- Other methods: as elastic containing 10% sodium fluoride.
Some studies:
1- Good oral hygiene was the only
This document discusses the historical evolution and use of fluorides for dental caries prevention. It begins with early discoveries of fluoride in enamel in 1805 and the isolation of fluorine as an element in 1771. It then covers fluoride chemistry, sources of fluoride intake from water, food, beverages and air. The document discusses fluoride metabolism, distribution in tissues, and excretion. It also addresses water fluoridation, which began in 1945 in Grand Rapids, USA and defines water fluoridation as the controlled adjustment of fluoride in communal water to maximize caries prevention with minimal fluorosis risk.
Food and drinking water typically contain at least small amounts of fluorides. They occur in the environment both naturally and as a result of human activities.
Fluorides are commonly added to dental products – and sometimes to tap water – to prevent cavities.
Under what conditions can fluoride exposure be beneficial or detrimental to human health?
Effect of Magnesium on Fluoride RemovalIJRES Journal
Fluorides in drinking water are known for both beneficial and detrimental effects on health. The fact that the problems associated with the excess fluorides in drinking water is highly endemic and widespread in countries like India prompted many researchers to explore quite a good number of both organic and inorganic materials adopting various processes from coagulation, precipitation through adsorption, Ion exchange etc. for fluoride removal. Some are good under certain conditions while others are good in other conditions. Leaching of Fluoride from the earth crust is the chief source of fluoride content in ground water; however the other sources like food items also add to increase the overall ingestion of fluoride into the human body. The soil at foot of the mountains is particularly likely to be high in fluoride from the weather and leaching of bed rock with a fluoride. The present paper aims to encompass the work carried out by various researchers in various fluoride affected areas and to access the effectiveness of using magnesium for fluoride removal.\
learning objectives
Introduction
History Of Water Fluoridation
How Does Fluoride Act In Dental Caries Prevention?
Goals Of F Administration
Fluoride Administration
Appropriate Levels Of Fluoride in Drinking Water
Methods of water fluoridation
--------------------------------------------------------------------
Efficacy Of topical fluorides
Range Of therapeutic fluoride concentrations used to prevent caries
Recommended doses
HISTORY & MECHANISM OF ACTION SYSTEMIC FLUORIDES.pptxRUCHIKA BAGARIA
EVERYTHING YOU NEED TO KNOW ABOUT SYSTEMIC FLUORIDES.
HISTORY, MECHANISM OF ACTION, METABOLISM, DIETARY SUPPLEMENTS AND RECENT ADVANCES.
LETS STUDY SYSTEMIC FLUORIDE TOGETHER.
LETS LEARN AND SHARE OUR KNOWLEDGE.
This document discusses various methods for preventing dental caries. It describes topical protection measures like fissure sealants, fluoride varnish, and preventive resin restoration. Fissure sealants involve sealing pits and fissures with resin to make the surfaces non-retentive. Fluoride varnish is painted on teeth to allow remineralization and reduces smooth surface caries by 18-70%. Preventive resin restoration minimally removes decay and seals remaining pits and fissures. The document also discusses atraumatic restorative treatment, laser light applications, and systemic fluoride administration through water fluoridation or supplements to strengthen enamel and inhibit bacteria.
The document discusses several theories on how fluoride reduces dental caries. The pre-eruptive theory states that fluoride taken during tooth formation can change tooth composition and morphology by replacing hydroxyl groups in tooth enamel with fluoride. The post-eruptive theory explains that fluoride in saliva and plaque reacts with tooth enamel to enhance remineralization and form calcium fluoride or fluorapatite crystals. Topically applied fluoride at high concentrations can also interfere with bacterial growth and metabolism. Fluoride reduces caries by increasing enamel resistance, promoting remineralization of early lesions, and interfering with cariogenic plaque bacteria.
Dental caries is a multifactorial disease caused by an interaction between cariogenic microbes, susceptible tooth surfaces, and fermentable carbohydrates. The document summarizes the epidemiology of dental caries globally and in Nepal. It describes that dental caries prevalence has decreased in western countries but increased in developing nations. In Nepal, 58% of children ages 5-6 have caries and 64% of adults have tooth decay. Environmental factors like climate, fluoride levels, and socioeconomic status also impact caries rates between different geographic locations.
Systemic fluoride was used as early as 1874 to prevent dental caries. Fluoride ions are absorbed in the gut and nearly all retained fluoride is incorporated into developing bones and teeth, making enamel crystals larger and more stable. This affects crown morphology by making pits and fissures shallower, less likely to cause decay. Systemic fluoride intake can cause dental fluorosis if intake is too high during tooth development between ages 1-4. Topical fluoride is now recognized as more important for caries prevention than systemic fluoride.
Systemic fluoride was used as early as 1874 to prevent dental caries. Fluoride ions are absorbed in the gut and nearly all retained fluoride is incorporated into developing bones and teeth, making enamel crystals larger and more stable. This affects crown morphology by making pits and fissures shallower, less likely to cause decay. Systemic fluoride includes water fluoridation, supplements, and adding fluoride to salt, milk, mineral water and sugar. Topical fluoride is most important for preventing decay by inhibiting demineralization and promoting remineralization in the mouth. Excessive fluoride can cause dental and skeletal fluorosis.
This document discusses fluorides and their role in dental health. It notes that dental caries is a major dental disease globally. It then outlines several key points about fluorides: they are classified as an essential nutrient; they are naturally present in rocks, soil, water, air, and foods; and water fluoridation is the process of adjusting fluoride levels in water to prevent tooth decay. The document also reviews the history of discoveries around fluoride and dental health and summarizes several major studies that demonstrated the effectiveness of water fluoridation in reducing tooth decay.
1. Fluoride has been used extensively to prevent dental caries since the early 1900s. Both systemic and topical fluoride administration are effective ways to reduce caries risk.
2. Current recommendations include community water fluoridation at 0.7 ppm, fluoride toothpaste in rice-sized amounts for young children, and professionally applied topical fluoride treatments every 3-6 months for those at high risk.
3. New advancements like silver diamine fluoride show promise in arresting cavitated caries lesions and may provide an alternative to conventional restorative techniques.
This document provides information about fluorine and its compounds. It discusses the properties of hydrogen fluoride, sodium fluoride, and fluorosilicic acid. It describes the major uses of inorganic fluorine compounds in industry and for municipal water fluoridation. The document also discusses how fluoride prevents dental caries by enhancing remineralization and inhibiting demineralization of tooth enamel. It provides facts about water fluoridation in the United States.
1. The document discusses fluorosis, a disease caused by excessive fluoride ingestion. It is most common in areas where groundwater has high natural fluoride levels.
2. In Bankura district of West Bengal, 17 of 22 blocks are affected by dental and skeletal fluorosis. Common symptoms seen are joint pain and back pain.
3. The main sources of fluoride exposure are drinking water, food, dental products, and industrial occupations. Groundwater becomes fluoridated when it passes through fluoride-containing rocks underground.
Book lets sensitization pdf_cmoh_bankura_NPPCF_Fluorosis_Medical Officer Boio...drdduttaM
Dear Consultants
Rajsthan
As per your request , I am uploading MO training booklets on NPPCF_Study Materials
I recommend Dr. Susheela Mam book for M.O. training .
Systemic fluoridation through water is effective in reducing dental caries. Excessive fluoride intake during tooth development can cause dental fluorosis. The optimal fluoride level is 1 ppm, reducing caries in 10% of the population with very mild fluorosis. Alternatives to water fluoridation include school water fluoridation, fluoride tablets, drops or lozenges, and fluoridated salt or milk. These provide systemic fluoride benefits when water fluoridation is not available.
The National Programme for Prevention and Control of Fluorosis (NPPCF) aims to prevent and control fluorosis cases across India. Fluorosis is caused by excessive fluoride intake and results in dental, skeletal, and non-skeletal health disorders. The NPPCF was initiated in 2008 and has expanded to cover 100 districts across 17 states. Key strategies include surveillance of fluorosis, capacity building, establishing diagnostic facilities, and managing cases through treatment, surgery, and rehabilitation. Activities involve community diagnosis, mapping diagnostic and treatment facilities, identifying gaps, public health interventions, training, and providing assistance to state governments. The overall goal is comprehensive management of fluorosis in endemic areas.
This document provides an overview of fluorides and oral health in developed and developing countries. It discusses the historical evolution of fluoride and how it relates to reducing dental caries. Different methods of fluoride delivery are examined, including water fluoridation, salt fluoridation, and fluoridated toothpaste. The global scenarios of water fluoridation and excess fluoride in drinking water are also reviewed. The document evaluates the role of fluoride in dental caries prevention, remineralization, periodontal health, and orthodontic anomalies. Both community-based and professionally applied topical fluoride are discussed in relation to developed and developing countries.
Fluoride is: natural mineral that helps build strong teeth and prevent cavities
Fluoride treatment; is typically professional treatment containing high concentration of fluoride that dentist or hygienist will apply to a person’s teeth to improve health and reduce the risk of cavities
Benefits of fluoride treatment:
1- Slow or reverse the development of cavities by harming bacteria that cause cavities.
2- Join into tooth structure when tooth develop to strengthen the enamel surface
3- Helps body, better use mineral such as Ca and phosphate, the teeth reabsorb these mineral to repair weak tooth enamel
Side effect of fluoride:
1- Tooth discoloration
2- Allergies or irritation
3- Toxic effect: if person apply it incorrectly or at high doses: nausea, diarrhea, excessive sweating
Common source of dietary fluoride:
Tea, water, sea food, fish eaten with their bones
Grape juice, food cooked in water.
Optimal fluoride intake:
Birth to 3 years: ---- 0.1 to 1.5 mg
4 years of age: ------1 to 2,5mg
7 years of age: ------ 1.5 to 2.5mg
Adolescent and adult: --- 1.5 to 4mg
History:
1802: Sir James Crichton Browne, the 1st hint of possible connection of fluoride and dental health
1901: Fredrek Mckay: present in permanent stains on teeth known as mottled enamel
1902: J.M Eager: stains on teeth
1916: Green Vardmin Black: support the Mckay work with histologic evidence, reported as endemic imperfection of enamel
Fluoride application procedures:
1- Fluoride prophylaxis pastes:
The use of cleaning and polishing pastes (pumic, zircate) and other comparable abrasive pastes before cementing orthodontic bands may lead to removal of significant amount of surface enamel which has more resistant layer and provide a significant amount of fluoride to support enamel surface.
2- Topical fluoride solution:
The most commonly used topical solutions are;
Sodium fluoride –2% neutral
Acidulated sodium fluoride at PH3 and 1.2 fluoride
8% --10% stannous fluoride.
3- Fluoride gel:
Are available in; sodium fluoride, acidulated sodium fluoride, stannous fluoride
4- Fluoride mouth rinse
5- Fluoride tablets:
Fluoride administration as pills or tablets (0.5 ---1mg/day) according to age show caries reduction in permanent teeth of 20 --- 40% when started at 6 –9 years of age
6- Fluoride dentifrices:
There are large number of dentifrices in market as, sodium fluoride, stannous fluoride, amine fluoride
Sodium monofluorophosphate
The regular use of fluoride dentifrices should be recommended to all patients undergoing orthodontic treatment in addition to other forms of fluoride administration
7- Fluoride cements:
Silicate cements restoration slowly release fluorides and protect surrounding enamel from secondary caries
8- Fluoride varnish:
Topical application of fluoride predisposes to the formation of readily soluble Ca fluoride crystals on the enamel surface
9- Other methods: as elastic containing 10% sodium fluoride.
Some studies:
1- Good oral hygiene was the only
This document discusses the historical evolution and use of fluorides for dental caries prevention. It begins with early discoveries of fluoride in enamel in 1805 and the isolation of fluorine as an element in 1771. It then covers fluoride chemistry, sources of fluoride intake from water, food, beverages and air. The document discusses fluoride metabolism, distribution in tissues, and excretion. It also addresses water fluoridation, which began in 1945 in Grand Rapids, USA and defines water fluoridation as the controlled adjustment of fluoride in communal water to maximize caries prevention with minimal fluorosis risk.
Food and drinking water typically contain at least small amounts of fluorides. They occur in the environment both naturally and as a result of human activities.
Fluorides are commonly added to dental products – and sometimes to tap water – to prevent cavities.
Under what conditions can fluoride exposure be beneficial or detrimental to human health?
Effect of Magnesium on Fluoride RemovalIJRES Journal
Fluorides in drinking water are known for both beneficial and detrimental effects on health. The fact that the problems associated with the excess fluorides in drinking water is highly endemic and widespread in countries like India prompted many researchers to explore quite a good number of both organic and inorganic materials adopting various processes from coagulation, precipitation through adsorption, Ion exchange etc. for fluoride removal. Some are good under certain conditions while others are good in other conditions. Leaching of Fluoride from the earth crust is the chief source of fluoride content in ground water; however the other sources like food items also add to increase the overall ingestion of fluoride into the human body. The soil at foot of the mountains is particularly likely to be high in fluoride from the weather and leaching of bed rock with a fluoride. The present paper aims to encompass the work carried out by various researchers in various fluoride affected areas and to access the effectiveness of using magnesium for fluoride removal.\
learning objectives
Introduction
History Of Water Fluoridation
How Does Fluoride Act In Dental Caries Prevention?
Goals Of F Administration
Fluoride Administration
Appropriate Levels Of Fluoride in Drinking Water
Methods of water fluoridation
--------------------------------------------------------------------
Efficacy Of topical fluorides
Range Of therapeutic fluoride concentrations used to prevent caries
Recommended doses
HISTORY & MECHANISM OF ACTION SYSTEMIC FLUORIDES.pptxRUCHIKA BAGARIA
EVERYTHING YOU NEED TO KNOW ABOUT SYSTEMIC FLUORIDES.
HISTORY, MECHANISM OF ACTION, METABOLISM, DIETARY SUPPLEMENTS AND RECENT ADVANCES.
LETS STUDY SYSTEMIC FLUORIDE TOGETHER.
LETS LEARN AND SHARE OUR KNOWLEDGE.
This document discusses various methods for preventing dental caries. It describes topical protection measures like fissure sealants, fluoride varnish, and preventive resin restoration. Fissure sealants involve sealing pits and fissures with resin to make the surfaces non-retentive. Fluoride varnish is painted on teeth to allow remineralization and reduces smooth surface caries by 18-70%. Preventive resin restoration minimally removes decay and seals remaining pits and fissures. The document also discusses atraumatic restorative treatment, laser light applications, and systemic fluoride administration through water fluoridation or supplements to strengthen enamel and inhibit bacteria.
The document discusses several theories on how fluoride reduces dental caries. The pre-eruptive theory states that fluoride taken during tooth formation can change tooth composition and morphology by replacing hydroxyl groups in tooth enamel with fluoride. The post-eruptive theory explains that fluoride in saliva and plaque reacts with tooth enamel to enhance remineralization and form calcium fluoride or fluorapatite crystals. Topically applied fluoride at high concentrations can also interfere with bacterial growth and metabolism. Fluoride reduces caries by increasing enamel resistance, promoting remineralization of early lesions, and interfering with cariogenic plaque bacteria.
Dental caries is a multifactorial disease caused by an interaction between cariogenic microbes, susceptible tooth surfaces, and fermentable carbohydrates. The document summarizes the epidemiology of dental caries globally and in Nepal. It describes that dental caries prevalence has decreased in western countries but increased in developing nations. In Nepal, 58% of children ages 5-6 have caries and 64% of adults have tooth decay. Environmental factors like climate, fluoride levels, and socioeconomic status also impact caries rates between different geographic locations.
Systemic fluoride was used as early as 1874 to prevent dental caries. Fluoride ions are absorbed in the gut and nearly all retained fluoride is incorporated into developing bones and teeth, making enamel crystals larger and more stable. This affects crown morphology by making pits and fissures shallower, less likely to cause decay. Systemic fluoride intake can cause dental fluorosis if intake is too high during tooth development between ages 1-4. Topical fluoride is now recognized as more important for caries prevention than systemic fluoride.
Systemic fluoride was used as early as 1874 to prevent dental caries. Fluoride ions are absorbed in the gut and nearly all retained fluoride is incorporated into developing bones and teeth, making enamel crystals larger and more stable. This affects crown morphology by making pits and fissures shallower, less likely to cause decay. Systemic fluoride includes water fluoridation, supplements, and adding fluoride to salt, milk, mineral water and sugar. Topical fluoride is most important for preventing decay by inhibiting demineralization and promoting remineralization in the mouth. Excessive fluoride can cause dental and skeletal fluorosis.
This document discusses fluorides and their role in dental health. It notes that dental caries is a major dental disease globally. It then outlines several key points about fluorides: they are classified as an essential nutrient; they are naturally present in rocks, soil, water, air, and foods; and water fluoridation is the process of adjusting fluoride levels in water to prevent tooth decay. The document also reviews the history of discoveries around fluoride and dental health and summarizes several major studies that demonstrated the effectiveness of water fluoridation in reducing tooth decay.
1. Fluoride has been used extensively to prevent dental caries since the early 1900s. Both systemic and topical fluoride administration are effective ways to reduce caries risk.
2. Current recommendations include community water fluoridation at 0.7 ppm, fluoride toothpaste in rice-sized amounts for young children, and professionally applied topical fluoride treatments every 3-6 months for those at high risk.
3. New advancements like silver diamine fluoride show promise in arresting cavitated caries lesions and may provide an alternative to conventional restorative techniques.
This document provides information about fluorine and its compounds. It discusses the properties of hydrogen fluoride, sodium fluoride, and fluorosilicic acid. It describes the major uses of inorganic fluorine compounds in industry and for municipal water fluoridation. The document also discusses how fluoride prevents dental caries by enhancing remineralization and inhibiting demineralization of tooth enamel. It provides facts about water fluoridation in the United States.
1. The document discusses fluorosis, a disease caused by excessive fluoride ingestion. It is most common in areas where groundwater has high natural fluoride levels.
2. In Bankura district of West Bengal, 17 of 22 blocks are affected by dental and skeletal fluorosis. Common symptoms seen are joint pain and back pain.
3. The main sources of fluoride exposure are drinking water, food, dental products, and industrial occupations. Groundwater becomes fluoridated when it passes through fluoride-containing rocks underground.
Book lets sensitization pdf_cmoh_bankura_NPPCF_Fluorosis_Medical Officer Boio...drdduttaM
Dear Consultants
Rajsthan
As per your request , I am uploading MO training booklets on NPPCF_Study Materials
I recommend Dr. Susheela Mam book for M.O. training .
Systemic fluoridation through water is effective in reducing dental caries. Excessive fluoride intake during tooth development can cause dental fluorosis. The optimal fluoride level is 1 ppm, reducing caries in 10% of the population with very mild fluorosis. Alternatives to water fluoridation include school water fluoridation, fluoride tablets, drops or lozenges, and fluoridated salt or milk. These provide systemic fluoride benefits when water fluoridation is not available.
The National Programme for Prevention and Control of Fluorosis (NPPCF) aims to prevent and control fluorosis cases across India. Fluorosis is caused by excessive fluoride intake and results in dental, skeletal, and non-skeletal health disorders. The NPPCF was initiated in 2008 and has expanded to cover 100 districts across 17 states. Key strategies include surveillance of fluorosis, capacity building, establishing diagnostic facilities, and managing cases through treatment, surgery, and rehabilitation. Activities involve community diagnosis, mapping diagnostic and treatment facilities, identifying gaps, public health interventions, training, and providing assistance to state governments. The overall goal is comprehensive management of fluorosis in endemic areas.
Fonts play a crucial role in both User Interface (UI) and User Experience (UX) design. They affect readability, accessibility, aesthetics, and overall user perception.
Discovering the Best Indian Architects A Spotlight on Design Forum Internatio...Designforuminternational
India’s architectural landscape is a vibrant tapestry that weaves together the country's rich cultural heritage and its modern aspirations. From majestic historical structures to cutting-edge contemporary designs, the work of Indian architects is celebrated worldwide. Among the many firms shaping this dynamic field, Design Forum International stands out as a leader in innovative and sustainable architecture. This blog explores some of the best Indian architects, highlighting their contributions and showcasing the most famous architects in India.
Maximize Your Content with Beautiful Assets : Content & Asset for Landing Page pmgdscunsri
Figma is a cloud-based design tool widely used by designers for prototyping, UI/UX design, and real-time collaboration. With features such as precision pen tools, grid system, and reusable components, Figma makes it easy for teams to work together on design projects. Its flexibility and accessibility make Figma a top choice in the digital age.
Practical eLearning Makeovers for EveryoneBianca Woods
Welcome to Practical eLearning Makeovers for Everyone. In this presentation, we’ll take a look at a bunch of easy-to-use visual design tips and tricks. And we’ll do this by using them to spruce up some eLearning screens that are in dire need of a new look.
Architectural and constructions management experience since 2003 including 18 years located in UAE.
Coordinate and oversee all technical activities relating to architectural and construction projects,
including directing the design team, reviewing drafts and computer models, and approving design
changes.
Organize and typically develop, and review building plans, ensuring that a project meets all safety and
environmental standards.
Prepare feasibility studies, construction contracts, and tender documents with specifications and
tender analyses.
Consulting with clients, work on formulating equipment and labor cost estimates, ensuring a project
meets environmental, safety, structural, zoning, and aesthetic standards.
Monitoring the progress of a project to assess whether or not it is in compliance with building plans
and project deadlines.
Attention to detail, exceptional time management, and strong problem-solving and communication
skills are required for this role.
1. SOT – Fluoride - History – 02/11/10
Fluoride in your drinking
water: History, Science, and
Policy
ENV H 472 A - ENVIRONMENTAL RISK
AND SOCIETY
Class 12
Steven G. Gilbert, PhD, DABT
www.toxipedia.org
2. SOT – Fluoride - History – 02/11/10
Mild fluorosis
Issues
Severe fluorosis
Should public water be fluoridated?
Benefits – reduced dental carries
Risks – dental fluorosis – bone disease
Dose - Response
3. SOT – Fluoride - History – 02/11/10
Fundamental Issue
Science meets Policy
Ethical, legal, social, political,
scientific considerations
Engage Public?
Role of government agencies?
Local – National – International?
4. SOT – Fluoride - History – 02/11/10
History of Fluoride
1899 - Sodium Fluoride -- Herbert H
Baldwin reported symptoms of acute
toxicity (e.g. gastrointestinal upset) doses
as low as 0.1-0.3 mg/kg.
1909 – “Colorado stain” (fluorosis) -
Frederick McKay, observed children in the
Pikes Peak region had of stain or mottling
on their teeth but fewer cavities
1931 – G.V. Black (father of modern
dentistry) and others concluded fluoride
ion in the water was the cause
5. SOT – Fluoride - History – 02/11/10
1939 – Gerald J. Cox first publication
recommending the addition of fluoride to
drinking water to improve oral health at 1
ppm level
1940’s - several paired city studies conclude
fluoride in drinking water is beneficial
1945, January 25 - Grand Rapids, Michigan -
first community in the world to add fluoride
to its drinking water to benefit dental health
1940’s Fluorine used in bomb making
(University of Rochester – Harold Hodge)
History of Fluoride
6. SOT – Fluoride - History – 02/11/10
1951, Joseph C. Muhler and Harry
G. Day of Indiana University
reported that stannous fluoride as
a tooth decay preventive and the
university first sold the technology
to Procter & Gamble to use in
Crest toothpaste.
Stannous Fluoride
7. SOT – Fluoride - History – 02/11/10
CDC’s Recommendation
“...fluoride prevents dental caries
predominately after eruption of
the tooth into the mouth, and its
actions primarily are topical for
both adults and children…”
CDC (1999). Achievements in Public Health, 1900-1999: Fluoridation of
Drinking Water to Prevent Dental Caries. MMWR, 48(41); 933-940, October 22.
“Nature's Way to Prevent Tooth Decay”
8. SOT – Fluoride - History – 02/11/10
How Fluoride Works
Teeth are generally composed of
hydroxyapatite and carbonated
hydroxyapatite; when fluoride is present,
fluorapatite is created. Fluorosis cannot
occur once the tooth has erupted into the
oral cavity. Topical fluoride encourages
fluorapatite which is beneficial because it
is more resistant to dissolution by acids
(demineralization).
9. SOT – Fluoride - History – 02/11/10
Dental Fluorosis with “Optimal” Fluoride
• 67% of US people exposed to fluoridated
water – most large cities
• 1997 - 29.9% of US children living in
fluoridated communities have dental
fluorosis on (Heller et al, 1997).
• 2005 - CDC dental fluorosis effects 1 in 3
American kids - up 9% since 1986-87.
• 2006 - ADA & CDC offers interim guidance
on infant formula and fluoride
10. SOT – Fluoride - History – 02/11/10
Ethical Issues
• Individual vs Public Health?
• Fluoridation of public water is
"compulsory mass medication"
• Individual Consent?
• Legal – human rights – choice?
• Improves dental care for low-income
people.
• Not mass medication because fluoride
is natural.
• Similar to fortifying foods with vitamins
11. SOT – Fluoride - History – 02/11/10
MCLG-MCL
• MCLG – maximum contaminant level goal
- level of a contaminant in drinking water
below which there is no know or expected risk
to health
- non-enforceable public health goal
• MCL – maximum contaminant level
- highest level of a contaminant allowed in
drinking water
- enforceable standard
- set as close as feasible to the MCLG;
technology and costs are considered
12. SOT – Fluoride - History – 02/11/10
SMCL
• SMCL – secondary maximum contaminant
level
- non-enforceable guideline for managing
drinking water for aesthetic, cosmetic (e.g.,
tooth discoloration), or technical effects
13. SOT – Fluoride - History – 02/11/10
History
• 1986
– MCLG and MCL set at 4 mg/L to protect against
“crippling” skeletal fluorosis
– SMCL set at 2 mg/L to reduce occurrence and
severity of “objectionable” enamel fluorosis.
• 1993
– MCL reviewed by NRC in 1993
– 4 mg/L is appropriate as an interim MCL
– More research needed on fluoride intake, enamel
fluorosis, bone strength and fractures, and
carcinogenicity.
14. SOT – Fluoride - History – 02/11/10
National Academy of Sciences - Tasks
• Review toxicologic, epidemiologic, and
clinical data on fluoride, particularly data
conducted since 1993 NRC report
• Review exposure data on orally ingested
fluoride from drinking water and other
sources (e.g., food, toothpaste)
• Evaluate the scientific basis of the MCLG and
SMCL and their adequacy to protect children
and others from adverse health effects.
• Consider relative contribution of various
fluoride sources to total exposure.
• Identify data gaps and recommend research
relevant to setting the MCLG and SMCL.
15. SOT – Fluoride - History – 02/11/10
Exposure
Drinking Water Contribution to Total Exposure
• Drinking Water – Natural Sources
- 2.0-3.9 mg/L (1.4 million people exposed)
57% - 90% for average individual
86% - 96% for high-water intake individual
- ≥ 4mg/L (200,000 people exposed)
72% - 94% for average individual
92% - 98% for high-water intake individual
• Drinking Water – Artificial Sources
- PHS recommends 0.7-1.2 mg/L (162 million people exposed)
41% - 83% for average individual
75% - 91% for high-water intake individual
16. SOT – Fluoride - History – 02/11/10
Enamel fluorosis
• Enamel fluorosis is a dose-related mottling
of enamel ranging from mild discoloration to
severe dark stains and pitting in children (0
to 8 years). Permanent condition.
• Historically, condition considered cosmetic
because it is not associated with tooth loss,
loss of tooth function, or psychological,
behavioral, or social problems.
• Cause: receiving too much fluoride during
tooth development.
• Committee separated severe from moderate
fluorosis.
– Severe: mottling with enamel pitting and/or loss
– Moderate: mottling but no enamel pitting or loss
17. SOT – Fluoride - History – 02/11/10
Severe Enamel Fluorosis
18. SOT – Fluoride - History – 02/11/10
Severe Enamel Fluorosis
Severe Enamel Fluorosis in Children in the United States
Source: Selwitz et al. (1995, 1998)
19. SOT – Fluoride - History – 02/11/10
NAS Recommendations
• New risk assessment should be performed on
fluoride. The assessment should include new data
on health risks, better estimate of total exposure to
fluoride, and updated approaches to risk
assessment. Key end points for the risk
assessment are severe enamel fluorosis, bone
fracture, and stage II skeletal fluorosis.
• Committee’s conclusions about the adverse effects
at the MCLG and SMCL do not address the lower
concentrations of exposure that occur with water
fluoridation.
20. SOT – Fluoride - History – 02/11/10
ADVERSE EFFECTS OF 4ppm FLUORIDE
• Enamel damage with severe fluorosis
PROVEN
• Increased fractures in susceptible groups
PROBABLE
• Skeletal fluorosis (stage II)
POSSIBLE
21. SOT – Fluoride - History – 02/11/10
APPROPRIATE RESPONSE??
• Precautionary principle (Wingspread, 1998)
– 1. Take anticipatory action to prevent harm
– 2. Burden of proof on proponents, not public
– 3. Must examine all alternatives (do nothing)
– 4. Process transparent & stakeholders involved
• Evidence based risk assessment (Guzelian,
2005)
– 1. Research-based evidence vs expert opinion
– 2. Strength of evidence vs weight of evidence
– 3. Hazard, probability and causality. Hill criteria
22. SOT – Fluoride - History – 02/11/10
WHAT’S NEXT??
• A comprehensive analysis of all the
effects of fluoride (adverse, beneficial,
incidence, severity, reversibility etc.)
• Move from “reasonable assurance of
no harm to a risk/benefit analysis
(MOA and dose response).
23. SOT – Fluoride - History – 02/11/10
Effective versus Toxic Conc.
Intake = 2L/day
Safety factor=2.5X
MCL=4ppm
0
1
2
4
?
?
2.5ppm=“threshold” for severe dental fluorosis
1ppm=target level of water fluoridation
LOAEL=20mg/day (crippling skeletal fluorosis)
SCL=2ppm: 4-15% mod. dental fluorosis
Prevalence (%)
Severe Dental
Fluorosis
ppmindrinkingwater
2.5-4ppm IQ deficits in Chinese studies
24. SOT – Fluoride - History – 02/11/10
Effective versus Toxic Dose
4ppm (1L/d, 20 kg child)
0
0.05
0.10
0.20
4ppm (2L/d, 70kg adult)
“Optimal” theraputic
dose range
EPA RfD
Dose(mg/kg/day)
0.15
Average
dietary intake
Age 0-2 yrs
Fluoride 0.7-
1.1 ppm
1ppm adult 1L/d
1ppm adult 2L/d
1ppm child 20 kg 1L/d
1ppm child 10kg 1L/d
STANDARDS THERAPUTIC/DIETARY RANGE TOTAL INTAKES
Crippling Skel. Flsis
at 40 yr (NRC 77)
25. SOT – Fluoride - History – 02/11/10
Figure 2: Tooth Decay Trends for 12 Year Olds: Fluoridated Vs. Unfluoridated Countries. Data from World Health Organization. (Graph by Chris Neurath).
Fluoridated vs. Unfluoridated
26. SOT – Fluoride - History – 02/11/10
More Findings from NAS
• The MCL should be lowered (EPA directed
to do a new risk assessment).
• Bone fluoride concs from lifetime exposure
at 2 ppm (SMCL) fall within or exceed
levels associated with stage II (mod.) or
stage III (sev.) skeletal fluorosis
• The SCML (2ppm) does not completely
protect against moderate enamel fluorosis.
(Moderate enamel fluorosis might have
psychological or social effects.)
27. SOT – Fluoride - History – 02/11/10
More Findings from NAS
• The possibility has been raised by the
studies conducted in China that fluoride
can lower intellectual abilities. (2.5-4 ppm)
• Fluoride affects normal endocrine function
or response; fluoride is an endocrine
disruptor in the broad sense of altering
normal endocrine function or response.
28. SOT – Fluoride - History – 02/11/10
Not for infants
• In November 2006, the American Dental
Association and CDC began
recommending to parents that infants
from 0 through 12 months of age
should have their formula prepared
with water that is fluoride-free, or
contains low levels of fluoride to
reduce the risk of fluorosis
29. SOT – Fluoride - History – 02/11/10
US vs Europe
• The U.S. Centers for Disease Control listed
water fluoridation as one of the ten great
public health achievements of the 20th
century.
• Most European countries have experienced
substantial declines in tooth decay without
its use, primarily due to the introduction of
fluoride toothpaste in the 1970s.
• Fluoridation may be more justified in the
U.S. because of socioeconomic inequalities
in dental health and dental care??
30. SOT – Fluoride - History – 02/11/10
More Information
Web Sites
• Toxipedia – Fluoride
http://www.toxipedia.org/display/toxipedia/Fluoride
• Wikipedia - http://en.wikipedia.org/wiki/Fluoride
• The Controversy -
-http://en.wikipedia.org/wiki/Water_fluoridation_controversy
• Anti fluoridation groups -- Fluoride Action
Network - http://www.fluoridealert.org/ - www.fluorideACTION.net
• Pro fluoridation -- CDC on Water Fluoridation
http://www.cdc.gov/fluoridation/
• American Dental Association Fluoridation Facts
2005 - http://www.ada.org/public/topics/fluoride/facts/fluoridation_facts.pdf
• American Dental Association Fluoridation -
http://www.ada.org/public/topics/fluoride/