Acid drinks and tooth erosion.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Explore the source record for details and available documents.
Carbonated soft drinks can, when consumed regularly and in large quantities, cause severe dental erosion. In patients with anorexia nervosa the temptation to substitute these drinks for their regular diet has increased, since they are readily available, relatively cheap and their consumption is socially acceptable. The dental management of a young child suspected of having anorexia, who presented with severe dental erosion, is described.
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As the erosive agent, a sport-drink mixture with pH 3.2 was given to Osborne-Mendel rats for 6 weeks. Lingual surfaces of the right first mandibular molar crowns were chosen for the recording. With the aid of a drawing tube mounted on a stereomicroscope, enlarged drawings of the surfaces were made encircling the intact and eroded areas. A computer-coupled analyser was used to measure the areas of the total surface, intact surface, eroded enamel and exposed dentine in square millimetres. The data was evaluated statistically and used to calculate erosion changes and to estimate occlusal wear.
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Rat studies demonstrated that low-pH powdered beverage mixes containing monocalcium phosphate caused less molar erosion than reconstituted frozen orange juice and grape juice when these beverages were consumed at excessive levels. A number of sodium phosphate supplements in low-pH beverages were not as effective as monocalcium phosphate in preventing molar erosion. Total acidity or pH values of the beverages could not be used with reliability to predict their potential to cause molar erosion.
Tooth surface loss by erosion presents a challenge to the general practioner in terms of identification of patients at risk, diagnostic investigation and early therapy. The guidelines contain advice for changing the food habits and behaviour in oral hygiene. Patients, who prefer erosive products (fruits, juice, cola) or who vomit should use a bicarbonate mouthrinse to neutralize the acid. The spectrum of therapy reachs of simple fillings with glassionomer cements and composites to comprehensive crown therapy. Several particularities in the psychological care of patients with eating disorders are described.
The clinical aspects, etiology, pathogenesis and classification of dental erosions are reviewed. Individual susceptibility or resistance to erosive damage has been attributed to variations in the quality and quantity of saliva. A lot of medicaments reduce the salivary secretion. Under the influence of acids, in particular of fruit acids, the peripheral tooth surface are demineralized in the absence of dental plaque. The citrus juices showed potentially the worst dental properties. Abrasive brushing techniques and functional influences wear down the already damaged layer of tooth surfaces.
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