Cariostatic effect of a two-part fluoride dentifrice in rats. 1999

S A Mundorff-Shrestha, and H M Proskin, and A E Winston, and C W Triol, and G Cornell, and T Sharpe
University of Rochester Eastman Department of Dentistry, NY, USA. sheila_shrestha@urmc.rochester.edu

This study compared the cariostatic effect of a two-part, fluoride-calcium-phosphate-containing prototype dentifrice (containing 1100 ppm F) to a conventional, clinically proven effective "gold standard" (1100 ppm F, USP Standard) and an Enamelon placebo dentifrice (0 ppm F) using a rat model. Three groups of 18 Crl:CDR(SD)BR rats were inoculated with S. sobrinus 27352 and fed MIT-200 for 35 days in a programmed feeder. Double-deionized water (DDW) was given ad libitum. The rats were treated twice daily with one two-part dentifrice. Just prior to treatment, each of the two parts of dentifrice were mixed 1:1 and applied undiluted. The rats were euthanized and their mandibular molars scored for caries using the Keyes quantification method. Shrestha SNP caries scores were then calculated. Non-parametric comparisons were done among treatments at the 0.05 level of significance using analyses based on ranks. The mean Shrestha SNP Caries Scores +/- standard deviations for the prototype dentifrice, USP standard and Enamelon placebo were 84.9 +/- 62.8, 101.3 +/- 66.3, and 181.2 +/- 100.1, respectively. Scores for the 1100 ppm F prototype treatment were significantly lower than the USP Standard and the Enamelon placebo. These results indicate that the new prototype dentifrice, containing fluoride-calcium-phosphate, increased the anti-caries efficacy in a rat model when compared with a fluoride-containing USP Standard dentifrice.

UI MeSH Term Description Entries
D011897 Random Allocation A process involving chance used in therapeutic trials or other research endeavor for allocating experimental subjects, human or animal, between treatment and control groups, or among treatment groups. It may also apply to experiments on inanimate objects. Randomization,Allocation, Random
D002130 Calcium Phosphates Calcium salts of phosphoric acid. These compounds are frequently used as calcium supplements. Phosphates, Calcium
D002327 Cariostatic Agents Substances that inhibit or arrest DENTAL CARIES formation. (Boucher's Clinical Dental Terminology, 4th ed) Cariostatic Effect,Cariostatic Effects,Agent, Cariostatic,Agents, Cariostatic,Cariostatic Agent,Effect, Cariostatic,Effects, Cariostatic
D003731 Dental Caries Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp. Caries, Dental,Carious Lesions,Dental Cavities,Dental Cavity,Dental Decay,Dental White Spots,Carious Dentin,Decay, Dental,Dental White Spot,White Spot, Dental,White Spots, Dental,Carious Dentins,Carious Lesion,Cavities, Dental,Cavity, Dental,Dentin, Carious,Dentins, Carious,Lesion, Carious,Lesions, Carious,Spot, Dental White,Spots, Dental White
D003802 Dentifrices Any preparations used for cleansing teeth; they usually contain an abrasive, detergent, binder and flavoring agent and may exist in the form of liquid, paste or powder; may also contain medicaments and caries preventives. Polishes, Dental,Dental Polishes,Dentifrice
D005459 Fluorides Inorganic salts of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Sodium and stannous salts are commonly used in dentifrices. Fluoride
D000287 Administration, Topical The application of drug preparations to the surfaces of the body, especially the skin (ADMINISTRATION, CUTANEOUS) or mucous membranes. This method of treatment is used to avoid systemic side effects when high doses are required at a localized area or as an alternative systemic administration route, to avoid hepatic processing for example. Drug Administration, Topical,Administration, Topical Drug,Topical Administration,Topical Drug Administration,Administrations, Topical,Administrations, Topical Drug,Drug Administrations, Topical,Topical Administrations,Topical Drug Administrations
D000704 Analysis of Variance A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable. ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000821 Animal Feed Foodstuff used especially for domestic and laboratory animals, or livestock. Fodder,Animal Feeds,Feed, Animal,Feeds, Animal,Fodders

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