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At least 919 records · Page 51Linked to original sources
PubMed1991

Fluoride dentifrices: current status and prospects.

Toothpastes have developed from the poorly effective formulations using incompatible abrasive systems to the highly effective products now being given credit for the decline in dental caries in most developed countries. The earliest toothpastes used sodium fluoride but this was soon replaced by stannous fluoride, sodium monofluorophosphate and amine fluoride. Monofluorophosphate has the advantage that it is compatible with a wide variety of abrasive systems. Although most toothpastes world-wide currently contain monofluorophosphate, sodium fluoride formulations are growing in availability because of the development of compatible abrasives. Clinical caries trials have indicated that, with proper formulation, there is little or no difference in effectiveness among toothpastes prepared with different fluoride agents, but that increasing the fluoride concentration will enhance the anti-caries effect. The addition of other active agents to fluoride toothpaste has been a relatively recent occurrence, and it is important to be assured that they do not interfere with the anti-caries activity of fluoride. Pyrophosphate, a calculus control agent, is one additive that was considered to be a potential problem; however, human and animal tests have shown that both caries and calculus inhibiting effects can be obtained from a single formulation. With the use of modern methodology to evaluate toothpaste formulations before clinical trials, many new products containing anti-calculus and other agents will probably become available in the coming years.

Dentifrices↗
PubMed1990

[In vitro uptake of fluoride from South African fluoride gel dentifrices].

An increasingly difficult situation in obtaining imported products has led to the development of a locally-manufactured topical fluoride gel. In order to evaluate the anticariogenic potential of the gel an in vitro study was conducted to compare the fluoride (F) uptake into the enamel from the locally-manufactured gel with that of two overseas products. Sound, unerupted third molar teeth were used in the study. One half of the buccal surface of each tooth was used as a control and the remaining half for conducting the experiment. Enamel biopsies (0.5 N HCLO4 3,143 mm2; 15 sec) were conducted prior to the F treatment (control halves) as well as 24 hours after F treatment (experimental halves). The fluoride concentrations ([F]) of the etching solutions were analyzed according to the potentiometric analytical method. The calcium concentrations were determined by means of a flame spectrophotometer. The [F] of the control halves of the teeth were used as a reference to determine the actual F uptake in the experimental halves after F treatment. The results obtained from the study showed that the teeth treated with the locally-manufactured F gel, revealed a significant uptake of fluoride in the enamel as well as an increased resistance to acid dissolution. Only one of the imported products showed a statistically significant higher fluoride uptake than the acidulated South African manufactured phosphate fluoride gel. There was a favourable overall comparison of the locally manufactured F gel with that of the overseas products.

Dentifrices↗
PubMedDate not supplied

Comparative study of effectiveness of strontium chloride and formalin containing dentifrices in relieving dental hypersensitivity.

Dental hypersensitivity is a very distinct and annoying clinical complaint. The treatment of dentinal hypersensitivity can be a serious problem in professional dental practice. Many studies have been undertaken and corresponding treatments suggested resulting in various degrees of relief for the patient who is afflicted and concerned that his pain will be further provoked by eating solid or liquid food or by drinking cold or hot beverages. This concern also may cause psychic tension which can reduce the threshold of tolerance to all external stimuli to lower than normal levels.

Adolescent↗
PubMedDate not supplied

[Abrasivity of dentifrices. Comparative SEM study].

The Authors analyze the abrasivity of seven types of toothpaste by SEM observation. They also give prominence to different microscopical features depending on abrasive system particles.

Dentifrices↗
PubMed1989

[Inhibition of hard dental plaques by reactive components of dentifrices].

Active components of toothpastes which are intended to inhibit plaque mineralization are discussed with their physiological and chemical implications on the formation and calcification of dental plaque. The decisive factors are defined as part of the biocrystallographic reactivity in the oral milieu.

Dental Calculus↗
PubMed1989

Surface changes on dental materials. The influence of two different dentifrices on surface roughness measured by laser reflexion and profilometer techniques.

Surface changes and wear resistance were investigated on eight different dental materials, using a laser reflexion technique and a profilometer. The tested materials were: (table; see text) The materials were subjected to brushing in a brushing machine, containing a toothpaste-water slurry. Two different toothpastes were used separately; Clinomyn and Colgate. The results showed that all the materials were to some extent affected by the brushing. Titanium was the most and SR Isosit N the least wear resistant material. Clinomyn and Colgate influenced the materials in different ways depending on their abrasive properties.

Acrylic Resins↗
PubMed1989

[Choosing a dentifrice].

Actually, there are so many products available on the market and the claims made by the manufacturers are so variable that questioning the choice of a toothpaste became self-evident. In the present article one cannot find "which toothpaste" has to be used. The aim of this review is to describe some groups of toothpastes, notably the fluoride toothpastes, the pastes for hypersensitive teeth and the anti-calculus toothpastes. So, this article gives a lot of information on the development of new products with new active components. Although scientific knowledge has expanded, we have to realize that the consumer makes the choice...

Dentifrices↗
PubMedDate not supplied

The ingestion of fluoride dentifrice by young children.

Through the fluoridation of drinking water, fluorides are becoming an increasing part of the human environment in industrialized countries. Fluoridated toothpastes are widely used in the United States and Canada. The younger a subject is, the greater proportion of toothpaste he or she tends to swallow.

Child, Preschool↗