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At least 649 records · Page 36Linked to original sources
PubMed1977

Influence of the topical application of fluoride on the in vitro adhesion of fissure sealants.

The adhesion of four polymeric sealant materials to enamel treated with a topical application of fluoride has been assessed by tensile bond strength tests. The ultraviolet light-activated resin, Nuva Seal, was found to bond adequately to stannous fluoride-treated teeth. The tensile bond strength of Espe 71730, Alpha Seal, and Epoxylite 9075 to enamel was reduced by treatment of the enamel with stannous fluoride. Treatment of the etched enamel with acidulated phosphate fluoride reduced the bond strength of all four fissure sealants.

Acid Etching, Dental↗
PubMed1997

Fluoride release and shear bond strengths of three light-cured glass ionomer cements.

Little is known about the release of fluoride from light-cured glass ionomer cements when used as orthodontic bonding agents. Fluoride release from three "hybrid" light-cured glass ionomer cements was measured during a 42-day period after initial curing in an in vitro test that simulated their use as orthodontic bonding agents. On day 48, the bonded teeth were exposed for 30 seconds to a stannous fluoride gel and checked for fluoride release during the following week. One cement (BL) released the most fluoride after initial cure and after an exposure to a stannous fluoride gel on day 48. The other two hybrid cements exhibited both significantly less fluoride release than material (BL) and resembled for most of the 55-day duration the composite resin control. After the 55-day duration, shear bond strengths of the composite resin control were significantly higher than the three light-cured glass ionomer cements. The light-cured glass ionomer cements in this study released fluoride after initial curing and after exposure to a topical fluoride gel. This property may help reduce or possibly even prevent enamel decalcifications seen around bracket bases. At present, the shear bond strengths of the light-cured glass ionomer cements tested appear to be too low for routine orthodontic bonding agents.

Analysis of Variance↗
PubMed1994

Review of fluoride exposures and ingestion.

The literature on fluoride intake/ingestion was reviewed critically to determine the current exposure to fluorides for children living in non-fluoridated and fluoridated areas in North America. Fluoride from all sources except mouthrinses and professionally applied topical fluorides was considered, including ingestion from foods and beverages, as well as intake from the use of fluoride dentifrice and dietary fluoride supplements. Data from all of these sources were used to produce estimates of mean daily ingestion. Studies consistently have identified substantial variation in ingestion among individuals. These analyses demonstrated that a substantial proportion of individuals had exposure or ingestion well beyond that of the mean for each source, and often 10-20% received up to several times as much exposure as the mean. Some children probably ingest sufficient fluoride from a single source to exceed the "optimal" fluoride intake recommended from all sources, and are therefore at increased risk of fluorosis. This review highlighted the substantial variation and complexity of fluoride ingestion. Appropriate consideration of these aspects is warranted in efforts to ensure a margin of safety favoring dental caries prevention while limiting objectionable fluorosis.

Child↗
PubMed1990

Recent trends in dental caries in U.S. children and the effect of water fluoridation.

The decline in dental caries in U.S. schoolchildren, first observed nationwide in 1979-1980, was confirmed further by a second national epidemiological survey completed in 1987. Mean DMFS scores in persons aged 5-17 years had decreased about 36% during the interval, and, in 1987, approximately 50% of children were caries-free in the permanent dentition. Children who had always been exposed to community water fluoridation had mean DMFS scores about 18% lower than those who had never lived in fluoridated communities. When some of the "background" effect of topical fluoride was controlled, this difference increased to 25%. The results suggest that water fluoridation has played a dominant role in the decline in caries and must continue to be a major prevention methodology.

Adolescent↗
PubMed2002

[New recommendations concerning the fluoride content of toddler toothpaste - consequences for systemic application of fluoride].

A group of experts from 4 European countries who gathered at a convention at Basel in November 1998, arrived at the recommendation to increase the fluoride (= F) content of toddler toothpastes from 250 ppm to 500 ppm. It was recommended to make parents brush the children's teeth with a pea-size piece of this toothpaste once a day, starting when the first deciduous teeth were erupting. Routine application of F-tablets would no longer be routinely prescribed, but restricted to individual indications in special high caries risk cases. This recommendation did not consider previous ones and was based exclusively on new scientific, mainly epidemiological evidence. In April 2000 the recommendation was officially issued by the German scientific dental association DGZMK.A careful case-control study resulted in the analysis of the risk to develop mottling of enamel under the influence of fluoridated water (1 ppm F) and fluoride toothpaste (1000 ppm F) when used in early childhood. It was found that excessive use of the fluoride toothpaste doubled the fluorosis risk, whereas when fluoride supplements (tablets, drops) were given the risk was about 20 times higher than without a fluoride supplement. Experiments in Germany and the Netherlands had shown that remineralisation of enamel under influence of 500 ppm F is achieved much more quickly than under application of 250 ppm F. A panel of WHO experts came to the conclusion that there was no evidence for the effectiveness of toothpastes containing less than 500 ppm. Statistics from the Netherlands have shown that the amount of fluoride tablets sold there is barely sufficient for the use by a quarter of all children 0 to 4 years old. In contrast to this low level of acceptance of fluoride tablets, fluoride toothpastes is widely accepted. It is their extensive use which explains the marked improvement of dentitions among the youth in this country during the last 20 years; the influence of topical fluoride gels, varnishes and other preventive measures was much less, and a reduction of sugar consumption (by the way less than 10 % of what it was in 1970) seems to have been the least important factor. The new recommendations based on topical rather than systemic fluoride application are better for preventive, toxicological, psychological and didactic reasons and should be implemented as soon as possible.

Administration, Oral↗
PubMed1993

Topical application of fluorides on teeth. New concepts of mechanisms of interaction.

Prevention of caries in exposed root surfaces constitutes an important clinical problem. It is thus important that clinicians involved with periodontology have an insight into fluoride prophylaxis. The understanding of the cariostatic mechanism of fluoride has improved during recent years. The aim of the present review is to give a short account of the present concept. Calcium fluoride appears to be the only product which is formed on enamel, dentin or cementum during brief topical treatments with fluoride or use of toothpaste containing fluoride. This calcium fluoride is stable in the oral environment; this is contrary to what was believed until recently. The calcium fluoride constitutes a pH-dependent reservoir of fluoride which releases fluoride when pH drops. The practical consequences of this concept is discussed.

Calcium Fluoride↗
PubMed2006

Dentifrices, mouthwashes, and remineralization/caries arrestment strategies.

While our knowledge of the dental caries process and its prevention has greatly advanced over the past fifty years, it is fair to state that the management of this disease at the level of the individual patient remains largely empirical. Recommendations for fluoride use by patients at different levels of caries risk are mainly based on the adage that more is better. There is a general understanding that the fluoride compound, concentration, frequency of use, duration of exposure, and method of delivery can influence fluoride efficacy. Two important factors are (1) the initial interaction of relatively high concentrations of fluoride with the tooth surface and plaque during application and (2) the retention of fluoride in oral fluids after application. Fluoride dentifrices remain the most widely used method of delivering topical fluoride. The efficacy of this approach in preventing dental caries is beyond dispute. However, the vast majority of currently marketed dentifrice products have not been clinically tested and have met only the minimal requirements of the FDA monograph using mainly laboratory testing and animal caries testing. Daily use of fluoride dental rinses as an adjunct to fluoride dentifrice has been shown to be clinically effective as has biweekly use of higher concentration fluoride rinses. The use of remineralizing agents (other than fluoride), directed at reversing or arresting non-cavitated lesions, remains a promising yet largely unproven strategy. High fluoride concentration compounds, e.g., AgF, Ag(NH3)2F, to arrest more advanced carious lesions with and without prior removal of carious tissue are being used in several countries as part of the Atraumatic Restorative Treatment (ART) approach. Most of the recent innovations in oral care products have been directed toward making cosmetic marketing claims. There continues to be a need for innovation and collaboration with other scientific disciplines to fully understand and prevent dental caries.

Journal Article↗
PubMed1989

Fluoride retention following topical application of a new APF foam.

The oral retention of fluoride (F) following the topical application of a newly developed APF foam was compared with a conventional APF gel. Twenty adults aged 16-26 years participated in the study. Ten of the subjects received the F foam and gel treatments, on separate occasions, with a saliva ejector while another 10 subjects received the same treatment without saliva ejector. Approximately 4 g of the gel, and 0.9 g foam, were dispensed for each treatment. The amounts of fluoride applied, recovered from the mouths, and retained in the mouth were calculated for each treatment.

Acidulated Phosphate Fluoride↗