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Erosion patterns.

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Dental Amalgam

Clinical evaluation of a glass ionomer cement for restoration of cervical erosion.

The following conclusions can be made: A glass ionomer cement mixed in preweighed capsules to restore anatomically deficient cervical contours demonstrated bonding of the total restoration to tooth tissue without undercutting or pinning the tooth or relying on geometric design of a cavity preparation in approximately 95% of 113 restorations observed postoperatively for six months. Seven restorations showed partial loss of material. Seven of the 113 restorations, showed some marginal discoloration although no stain penetrated the interface of the tooth and restoration. For most cervical restorations, the glass ionomer cement produced a mismatch in "color, shade, and/or translucency" in relationship to the tooth. The probable reason for this is the opacity of the cement. An acceptable surface of the glass ionomer cement restorations can be established at a later finishing appointment. There is little evidence that roughness increased slightly during the six months. Patients' sensitivity to temperature and direct tactile contact diminished or was eliminated after placement of the restoration.

Acrylic Resins

Degrees of saturation with respect to apatites in fruit juices and acidic drinks.

Some fruit juices and carbonated acidic drinks, recognized as agents causing dental erosions, were analyzed for calcium, phosphate, fluoride and pH. Ionic activity/concentration products for hydroxyapatite and fluorapatite were calculated. It was found that all liquids analyzed were unsaturated with respect to both apatites, which explains their erosive effect.

Apatites

Dental erosion of nonindustrial origin. A clinical survey and classification.

A survey was made from the clinical records of 72 patients diagnosed as suffering from dental erosion of nonindustrial origin. The information surveyed included dietary history, relevant medical history, clinical examination, and color photographs of the affected teeth. A new classification of erosion is proposed and the different types of lesions are described.

Adolescent

Pilot study on dental erosion in a Norwegian electrolytic zinc factory.

In 12 workers in a Norwegian factory using electrolytic methods to extract zinc, a relationship was found to exist between degree of erosion, number of teeth affected and the length of service. The prevalence of caries, abrasion and attrition was not higher than in comparable population groups. The correlation between diagnosis of erosion based on clinical examination, and diagnosis based on evaluation of color slides was good.

Adult