background and aims. remineralization of incipient caries is one of the goals in dental health care. the present study aimed at comparing the effects of casein phosphopeptide-amorphous calcium phosphate complex (cpp-acp), remin pro®, and 5% sodium fluoride varnish on remineralization of enamel lesions. materials and methods. in this in vitro study, 60 enamel samples were randomly allocated to s...

The purpose of this investigation was to study the intra-oral rehardening of acid-softened enamel and fluoride uptake from SnF2 gel. Bovine enamel slabs were softened with 0.1 mol/L lactate buffer at pH 4.0 for 14 hrs and then mounted in a mandibular removable Hawley appliance. Control slabs were worn for 96 hrs by seven adult males whose teeth were brushed daily with a fluoride-free dentifrice...

The effect of bleaching treatments containing added calcium and combined with neutral or acidic fluoride gels on tooth enamel was investigated in vitro through Knoop microhardness (KHN) and surface roughness (SR) measurements. A total of 60 bovine incisors were tested, including 30 for SR measurements and 30 for KHN measurements. The specimens were divided into 12 groups and subjected to a blea...

Objective: To compare optical, morphological, chemical, and physical aspects of the sound enamel whitespot lesions (WSL) classified as ICDAS 2. Material Methods: Seventeen human molars with one surfacepresenting WSL a surface (2 x 2 mm window) were characterized by Quantitative light-inducedfluorescence (QLF®), Optical coherence tomography (OCT), microhardness, Raman spectroscopy. The ANOVAand ...

Since in vitro pH-cycling models are widely used to study dental caries, they should allow evaluations of fluoride effect on early stages of caries development. Therefore, acid etching on enamel surface must be avoided, enabling surface microhardness (SMH) analysis. In the present study, the pH-cycling model originally described by Featherstone et al.9 (1986) was modified to preserve the enamel...

OBJECTIVE The time of contact between the product and enamel surface is important in ensuring the efficacy of fluoride varnishes. Thus, some alternatives could avoid fluoride loss to saliva and improve the anticariogenic action of the product. This study evaluated the effect of an experimental coat on the anticariogenic action of fluoride varnishes. MATERIAL AND METHODS Enamel bovine blocks w...

OBJECTIVES The aim of this study was to compare the microhardness of five different resin composites at different irradiation distances (2 mm and 9 mm) by using three light curing units (quartz tungsten halogen, light emitting diodes and plasma arc). METHODS A total of 210 disc-shaped samples (2 mm height and 6 mm diameter) were prepared from different resin composites (Simile, Aelite Aesthet...

The aim of this in vitro study was to compare the remineralization potential of dental products containing calcium on human enamel softened by soft drinks. Fifty sound human premolar teeth were randomly divided into 5 treatment groups (n=10): artificial saliva, 1,000 ppm fluoride toothpaste, CPP-ACP paste, CPP-ACP with 900 ppm fluoride paste and tricalcium phosphate with 950 ppm fluoride paste....

Objective The goal of this study was to evaluate the in vivo effects of a novel mouthwash on enamel remineralization. Materials and Methods Ten healthy volunteers wore removable intra-oral appliances for three study arms with duration of 5 days each. In 1 study arm, subjects used Oral Essentials Sensitivity FormulaR mouthwash; in another arm they used SensodyneR mouthwash, and in the third ar...

This study evaluated in vitro and in situ the potential adverse effects of 10% carbamide peroxide on human enamel using microhardness, calcium loss and surface morphology analysis. Twenty-four enamel slices (4 mm2) were obtained from recently extracted premolars. The specimens were polished under water-cooling down to 1,200-grade sandpaper. After initial microhardness readings (100 g), the spec...