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Enameling of Alumina Implant Materials with Bioglasses:Behavior of These Enamels in Simulated Biological Environments.

  • D. Muster (a1), J. L. Crovisier (a2) and J. M. Hamert (a2)

Abstract

Four glasses were tested as enamel seals between osseous and mucous media on alumina implants. It was found that a perfect enamel adherence on the aluminous substrate is obtained at 1400° C. During enameling the surface of the implant is dissolved in the glass, which leads to the formation of aluminosilicate crystals in the implant/enamel interface. A rapid cooling from 200 to 1°C in water does not provoke fissuring of the enamel for the four glasses tested, which illustrates the good mechanical resistance of the implant/enamel bond. The preliminary in vitro results indicate that hydroxyapatite forms directly within the leached layer developed in plasma (except for KG.X glass).

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