Self-applied fluoride gels
Despite safety warnings dating back to the early 1980s (Ekstrand 1981), dentists are still prescribing fluoride gels for home use by patients at high risk of caries, including individuals with reduced salivary flow as a result of of cancer treatment. Patients prescribed self-applied fluoride gels should be aware that this method of fluoride delivery is particularly risky. Although self-applied fluoride gels generally contain less fluoride (5 mg of fluoride per milliliter) than professionally applied gels (12.3 mg/mL), the process of self-applying the gels can result in significantly more ingestion of the product. In one published case report, a 50-year old cancer patient developed fluoride poisoning, as evident by “gastric symptoms, difficulty in swallowing, leg muscle soreness and knee joint soreness.” (Eichmiller 2005). The dentists who authored of the report stated that:
“The combination of gastric problems, difficulty in swallowing, leg muscle pain, and pain in the knee and hip joints is a key indicator of fluoride toxicity, and patients using high-concentration home fluoride treatments should be monitored for these symptoms.”
SOURCE: Eichmiller FC, et al. (2005). Controlling the fluoride dosage in a patient with compromised salivary function. Journal of the American Dental Association 136(1):67-70.
In other research, scientists have found that ingesting small quantities of self-applied gels can significantly erode the gastric mucosa in the stomach (Spak 1990). Not only can self-applied fluoride gels cause systemic fluoride toxicity, there is a notable absence of evidence demonstrating their efficacy. As noted in one review:
“Relatively little information is available to document the efficacy of these self-applied fluoride gels. . . [J]ustification for the use of these self-applied fluoride gels is tenuous. . . . On the other hand, there is evidence to suggest that their use by preschool-age children increases the risk of developing dental fluorosis.”
SOURCE: Stookey GK. (1994). Review of fluorosis risk of self-applied topical fluorides: dentifrices, mouthrinses and gels. Community Dentistry & Oral Epidemiology 22(3):181-6.
Fluoride varnishes are designed to bond fluoride to the surface of the teeth for days or weeks at a time. Most fluoride varnishes contain 5% sodium fluoride, or 22.6 milligrams of fluoride for each milliliter of varnish that is applied. While this is twice the concentration used in professionally applied fluoride gels (12.3 mg per milliliter), less varnish is used per treatment. With fluoride gels, dentists generally apply about 4 to 8 mL of gel per treatment (48 to 96 mg of fluoride). With varnishes, dentists apply about 0.5 to 1.0 mL of varnish (11.3 to 22.6 mg of fluoride). Fluoride varnishes, therefore, introduce less fluoride into the mouth than fluoride gels. Moreover, because of their slow-release quality, varnish does not cause the same severe spike in blood fluoride levels that gels create. Nevertheless, varnishes do expose a child to significant levels of fluoride, as all of the fluoride that is introduced into the mouth with a varnish will be swallowed.
The use of fluoridated salt is becoming increasingly widespread across the globe. While the US & Canada do not yet have salt fluoridation programs, it is currently estimated that more people in the world are exposed to fluoridated salt than fluoridated water. Thus, this source of fluoride exposure is becoming increasingly important and insidious. Fluoridated salt usually contains about 250 ppm fluoride, which would result in a daily intake of 2.5 mg of fluoride per day for people consuming 10 grams of salt. A number of South American Countries allow salt fluoridation programs, including Bolivia, Columbia, Costa Rica, Dominican Republic, Honduras, Jamaica, Nicaragua, Panama, and Venezuela. A number of European countries also allow salt fluoridation, including: Austria, the Czech Republic, France, Germany, Slovakia, Spain, and Switzerland. As shown in the following table, however, the usage rates vary greatly in these countries.
|Salt Fluoridation in Europe|
(% of Household salt)
|SOURCE: Gotzfried F. (2006). Legal aspects of fluoride in salt, particularly within the EU. Schweiz Monatsschr Zahnmed 116: 371–375 (2006)|
The Absurdities of Water Fluoridation
[caption id="attachment_10205" align="alignleft" width="190"] Paul Connett, PhD[/caption] Water fluoridation is a peculiarly American phenomenon. It started at a time when Asbestos lined our pipes, lead was added to gasoline, PCBs filled our transformers and DDT was deemed so "safe and effective" that officials felt no qualms spraying kids in school classrooms
Why I am now officially opposed to adding fluoride to drinking water
https://www.youtube.com/watch?v=iF-hKlIgCuM April, 2000 To whom it may concern: Since April of 1999, I have publicly decried the addition of fluoride, especially hydrofluosilicic acid, to drinking water for the purpose of preventing tooth decay. The following summarize my reasons. New evidence for lack of effectiveness of fluoridation in modern times. [caption id="attachment_10211" align="alignleft" width="150"] Dr. Hardy
50 Reasons to Oppose Fluoridation
Introduction [caption id="attachment_11821" align="alignleft" width="200"] Dr. Paul Connett[/caption] In Europe, only Ireland (73%), Poland (1%), Serbia (3%), Spain (11%), and the U.K. (11%) fluoridate any of their water. Most developed countries, including Japan and 97% of the western European population, do not consume fluoridated water. In the U.S., about 70% of public water supplies are
Fluoride & IQ: The 52 Studies
As of September 2017, a total of 59 studies have investigated the relationship between fluoride and human intelligence, and over 40 studies have investigated the relationship fluoride and learning/memory in animals. Of these investigations, 52 of the 59 human studies have found that elevated fluoride exposure is associated with reduced IQ,
Fluoride's Effect on Fetal Brain
The human placenta does not prevent the passage of fluoride from a pregnant mother's bloodstream to the fetus. As a result, a fetus can be harmed by fluoride ingested pregnancy. Based on research from China, the fetal brain is one of the organs susceptible to fluoride poisoning. As highlighted by the excerpts
Fluoride's Neurobehavioral Effects in Humans & Animals
In addition to studies linking fluoride to reduced IQ in humans, and impaired learning/memory in animals, human and animal studies have also linked fluoride to a variety of other neurobehavioral effects. These studies, which are excerpted below, provide yet further evidence that fluoride is a neurotoxin. The importance of considering other
Email Exchange with FDA re: Fluoride Supplements
Email exchange regarding FDA's reasons for not approving fluoride supplements.
Harvard's Statement on Chester Douglass/Scientific Misconduct
Statement Concerning the Outcome of the Review into Allegations of Research Misconduct Involving Fluoride Research BOSTON-August 15, 2006-The Harvard Medical School and School of Dental Medicine (HSDM) review of Chester Douglass, DMD, PhD, professor of oral health policy and epidemiology at HSDM, has concluded that Douglass did not intentionally omit, misrepresent,
The 'Altered Recommendations' of the 1983 Surgeon General's Panel
"We believe that EPA staff and managers should be called to testify, along with members of the 1983 Surgeon Generals panel and officials of the Department of Human Services, to explain how the original recommendations of the Surgeon Generals panel were altered to allow EPA to set otherwise unjustifiable drinking water standards for fluoride."
Related Miscellaneous Content: