نتایج جستجو برای: tooth demineralization
تعداد نتایج: 90560 فیلتر نتایج به سال:
Effect of Proarginine Technology Plus 1450 PPM Fluoride on Enamel Reminerlization: An in Vitro Study
AIM: The objective of this in vitro study was to evaluate the effects of new dentifrices containing 1.5% arginine, an insoluble calcium compound, and fluoride for their ability to promote remineralization of demineralized enamel. Methods: Twenty human premolar extracted for orthodontic reasons were used. The specimens were immersed in demineralization solution followed by application of proargi...
Enamel and dentin are susceptible to acids from food sources leading dental erosion, a global problem affecting millions of individuals. Particulate hydroxyapatite (HAP) on the tooth surface can influence effects acid attacks. Standardized bovine enamel samples with artificial saliva used in an vitro cyclic demineralization–remineralization protocol analyze structural changes experienced by sur...
Background:Chitosan and Calcium are one of the natural polymeric materials obtained from the exoskeleton of Xylotrupes gideon through demineralization, deproteinization and deacetylation processes. Nano chitosan and calcium can inhibit the demineralization process, which is caused by the consumption of acetic acid. This study aims to determine the effect of nano chitosan pretreatment and ...
Demineralization of tooth mineral in the caries process was studied using a computer model that simulates a diffusion controlled dissolution process. The model consists of a two-compartment system. An acidic solution in the outer ("plaque") compartment was assumed to be large in volume so that its composition remained constant during the process. The solution in the inner ("lesion") compartment...
Prevention-5 th class Lect 1 Diet and dental caries The role diet and nutrition in the etiology and pathogenesis of caries may be viewed as systemic (nutrition) and local effect (diet) In general, the term diet refers to food and drink consumption (diaita ‘way of life’) while nutrition refers to a process by which living organisms physiologically absorb and metabolize food to ensure growth, ene...
One of the commonest problems of patients undergoing orthodontic treatment with fixed appliances is the development of enamel demineralization. In the study of Gorelick et al. (1982) 1 50% of the patients undergoing orthodontic treatment with fixed appliances developed white spot lesions compared to 25% of the non-orthodontic patients. These initial lesions can be visible as soon as the fourth ...
PURPOSE The current gold standard for clinical jawbone formation involves autogenous bone as a graft material. In addition, demineralized dentin can be an effective graft material. Although demineralized dentin readily induces heterotopic bone formation, conventional decalcification takes three to five days, so, immediate bone grafting after extraction is impossible. This study evaluated the ef...
BACKGROUND Aim of this in-vitro-study was to assess the remineralization potential of a tooth cleaning tablet with different fluoride content. METHODS Twenty three caries free impacted third molars were examined, enamel surfaces were wax coated leaving two 3 x 4 mm windows for exposure to demineralization/remineralization cycles. The teeth were randomly assigned to 4 groups of 5 control and 6...
OBJECTIVES The purpose of this study was to investigate the effect of milk and fluoridated milk on bacterially induced caries-like lesions. SAMPLE AND METHODS Extracted impacted human molars were cut in half and covered with a varnish leaving a 4*4 mm window. The samples were coated with biofilm of S. sobrinus and were further divided into three experimental groups of S. sobrinus, S. sobrinus...
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