Posted by : Razib smile Friday, July 12, 2013

About Fluoride

Though the mechanism  of clinical effect of fluoride is still debated but fluoride has been used widely in dentistry from many years in terms of caries prevention .
Fluoride therapy for the prevention of dental caries is considered under two main headings....

                            1. Systemic Fluoridation 
                            2. Topical Fluoridation 

Systemic Fluoridation :

 a) Fluoridation of communal water :  An optimal level of fluoride in the water supply provides significant protection  against  caries. The optimal concentration depends on the annual average temperature of the community as temperature influences the amount of daily water intake. Temperature ranging between 14.7d c to 17.7d c the optimal level of fluoride is 1.00 p.p.m.In a warmer climate slightly less than 1ppm is  sufficient.The  effect of fluoride  in drinking water persists in adulthood if fluoridated water is consumed in between 8 to 18 years of age 
-i.e during tooth formation and mineralization .
b) Fluoride supplements like tablet, drops , lozenges, table salt , vitamin , etc  offer an alternative source of systemic fluoridation where water fluoridation is not feasible. These suppliments are usually administerd continuously on a daily basics front birth to the pre-erruptive maturation of permanent teeth .

Topical fluoridation:

These are the mouth washes , water soluble gels , pastes , chewinggum etc. It is thought that enhanced protection occurs if the teeth are exposed to fluoride shortly after erruption because  the enamel  surface is very much reactive in this time and absorbs additional fluoride rapidly. A number of fluoride salts and formulation  containing fluoride have been assessed including fluoride of stannous , lead and Vanadium as well as mono fluro phosphate  (MFP) and fluorides. 

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Ii is a chemical bacterial and mechanical irritation but usually due to bacterial invasion from death pulp tissue.

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