It is well established that fluoride plays an important role in the prevention of dental caries. Fluoridation of drinking water has been a successful public health measure in reducing the prevalence of tooth decay.' Beneficial results have also ensued from incorporation of stannous fluoride into a dentifrice.2 Wellock and Brudevold3 and others4,5 have reported a reduction in carious surfaces, a...

background and aims. the use of fluoride mouthrinses has been proved to be one of the most effective ways to prevent tooth decay. a community based program using f+ rinse at school has also proved to be well-controlled and efficient. the aim of this investigation was to evaluate fluoride uptake level of a locally prepared naf rinse used in iran’s school program during 2005. materials and method...

Calcium fluoride-like materials ("CaF2") formed on dental surfaces after professional fluoride application are unstable in the oral environment but can be retained longer with a daily NaF mouthrinse. We tested the effect of twice daily 0.05% NaF rinses on the retention of "CaF2" formed on enamel and dentine after applying acidulated phosphate fluoride (APF). "CaF2" formed on enamel/dentine by A...

The first fluoride varnishes were developed during the 1960s (Duraphat) sodium fluoride varnish) and 1970s (Fluor Protector) silane fluoride varnish) to prolong the contact time between fluoride and enamel. Fluoride varnishes adhere to enamel, and calcium fluoride formed after application acts as a long-term reservoir of fluoride. Currently Duraphat varnish is the most widely used topical fluor...

The review of this article is focusing on role of chemical nature of fluoride on human health and environment. Fluoride has both positive and negative effects on human health and environment. However this positive effect is felt when the fluoride concentration is low. At higher concentration the negative affects of fluoride far out way its positive effects. Millions of people all over the world...

OBJECTIVES This study aimed to assess the effect of applying casein phosphopeptide- amorphous calcium phosphate (CPP-ACP) paste, casein phosphopeptide-amorphous calcium phosphate fluoride (CPP-ACPF) paste and sodium fluoride gel on surface microhardness of enamel after microabrasion. MATERIALS AND METHODS Thirty freshly extracted human premolars were selected. All samples were subjected to ha...

The effects of different Ca-addition rates on calcium fluoride (CaF2) precipitation and deposition were investigated in 12 mmol/L sodium fluoride solutions to which 0.1 mol/L calcium chloride solution was continuously added at average rates of (5, 7.5, 10, 12.5, 15 or 20) mmol L(-1) min(-1). The changes in ionic fluoride and calcium concentrations, as well as turbidity, were continuously record...

Magnesium slag is a valuable resource when proper disposal and utilization are adopted. The main pollution of magnesium caused dust fluorine pollution. Formation mechanism fine investicated. Alike steel slag, phase transition dicalcium silicate in around 500 °C brings volume expansion, which causes the disintegration powdering slag. Chamical stabilization experiments were carried out. effects p...