Recent work has demonstrated that the physical model approach should greatly aid in understanding enamel demineralization, remineralization, and enamel reactions in general. Such research has already led to a systematic, self-consistent, mechanistic description of the acid demineralization kinetics for dental enamel.' 5 The roles played by the mineral phase, the type and concentration of acid b...

The objective of this study was to determine the effect of demineralization of resected root ends on the temporal and qualitative healing of the dentoalveolar (apical attachment apparatus) and alveolar (osseous) tissues in the excisional wound site created during periradicular surgery. Root end resections to orthograde gutta-percha obturations were performed on the mandibular premolars of six m...

Background: Eggshell (ES) is a rich source of minerals since it contains calcium, phosphorous, magnesium, strontium, and fluoride. This study sought to compare the efficacy of nanohydroxyapatite (NHA) and ES for remineralization of enamel caries-like lesions by pH cycling. Materials and Methods: In this in vitro experimental study, artificial enamel carious lesions were induced in 47 human teet...

Dental caries is a infectious microbiologic disease of the tooth that results in localized dissolution and destruction of calcified tissues. Its seen in all age groups, few preventive agents have been evaluated to prevent the caries. Xylitol, a polysugar, obtained from birch tree has been shown to reduce dental caries when mixed with food, chewing gums and milk. Dental caries are prevalent in a...

This article reports a successful removal of CaCO3 from snail and periwinkle shells for the purpose of producing high quality chitin for possible application as bio-fillers in bone fixation materials. Experiment was designed with varying concentrations of acid and alkali for demineralization, deproteinization and deacetylation of the samples. Thermal characteristics, morphology, degree of de-ac...

During the last decade the physical model approach has been leading to a systematic, selfconsistent, mechanistic understanding of the demineralization kinetics of dental enamel reactions in acidic media.1"2 In recent apatite dissolution studies it has aided greatly in defining the exact roles of solution fluoride and strontium and in elucidating the fluoride-strontium-phosphate synergism in ret...

UNLABELLED In this in vitro study, examination of the morphological changes of enamel surface after topical application of a sodium fluoride solution was performed. Validation of the Fluorostom effectiveness became possible, after 10 years of using for the caries prevention national program. MATERIALS AND METHODS Sound human enamel sections, ware treated with a 0.05% sodium fluoride solution....

Demineralization of bone for collagen extraction is most commonly performed using dilute hydrochloric acid (HCl) despite the fact that little data exists on the effects of differing acid concentration or treatment time on the quantity and quality of collagen extracts and that hydrochloric acid is extremely effective at hydrolyzing peptide bonds. Data on yield, elemental composition, and isotopi...

The resistance of white spot lesions to acid demineralization when etched with phosphoric acid and sealed with a resin material was studied. Artificially created white spot lesions were sealed and re-exposed to an artificial caries medium along with unprotected white spot lesions. Examination with polarized light microscopy revealed continued progression of the unprotected white spot lesions, w...

The objective of this study was to investigate the correlation between CT depth, indentation depth determined by a new hardness tester (Cariotester), and the transverse microradiography (TMR) parameters, i.e., lesion depth and mineral loss. For that purpose, this study evaluated the feasibility of using Cariotester as a root caries diagnostic system and capability of Cariotester to detect effec...