statement of problem: the effectiveness of fluoride dentifrices in reducing dental caries is well documented. however, not all fluoride dentifrices are equally effective purpose: the objective of this experimental study was to compare fluoride uptake from pooneh pediatric toothpaste and an ada-approved pediatric dentifrice, in sound enamel of primary teeth. materials and methods: in an in vitro...

Background & Aims: The present study compared fluoride uptake into enamel from sodium fluoride 0.05% gel and American Dental Association approved fluoride gel (Stannous fluoride 0.4% , Sultan Co.) when used on healthy enamel of the intact teeth. Methods: In an experimental study, 30 intact teeth extracted for orthodontic purposes were randomly assigned into two groups of 15 teeth. The teeth wer...

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...

Enamel is the outermost layer of tooth and has no ability to regenerate after eruption. Its mineral composition likely be responsible for enamel resistance any agents that appear in oral cavity. The objective this study was compare content Ca, Mg, Zn Cu specific layers healthy worn enamel. Three groups dental samples were analyzed. amounts Mg bioptates established using atomic absorption spectr...

An in vivo acid etch biopsy method was developed by Hotz et al (1970) to determine fluoride uptake and re­ tention in the outer 5 pm to 15 pm of enamel. This technique was evaluated by means of scanning electron microscopy and planimetry. Because of the difficulty experienced in controlling the areas etched, a modifi­ cation was introduced by defining the biopsy areas with annular adhesive disc...

Objectives The objectives of the study were to evaluate the content of copper and zinc in individual layers of tooth enamel and to analyze the relationships between the study minerals in individual layers of tooth enamel. Patients and methods Fifteen human permanent teeth were cut off every 150 μm alongside the labial surface. Acid biopsy of each layer was performed. The zinc content was dete...

The in vitro fluoride uptake by dental enamel from two conventional acidulated phosphate fluoride gels was compared to a thixotropic acidulated phosphate fluoride gel. The fluoride concentration and enamel biopsy depths were determined using an acid-etch biopsy method based on calcium determinations. A significant fluoride uptake by dental enamel from a thixotropic topical fluoride agent follow...

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 METHO...