Development and Histological Findings of Flame Spraying Apatite Coating Titanium Dental Implants.

概要

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Sintered hydroxylapatite (HA) dental implants and plasma spraying HA coating implants have been used. Desirable properties of the former type of implants include a thinner HA layer and the ability to provide structures for mechanical retention, while those of the latter type of implants are a stronger adhesion to the titanium surface and more retentive and more stable apatite structures. We have developed a flame spraying apatite coating titanium dental implant system in an effort to improve some of these properties. In this study, the newly-developed implants were installed in adult dogs for histological findings of which will be reported in this paper. The results of this study may be summarized as follows.<BR>1) This implant showed a good bone covering.<BR>2) Little imflammatory change was observed in the surrounding soft tissue.<BR>3) Mononuclear or multinuclear cells were observed in contact with HA surface. Although the elution of HA grains from HA surface was observed in limited areas, no obvious resorption was observed on HA surface.<BR>4) These findings seemed to suggest a possible clinical application of this system.
特定非営利活動法人日本口腔科学会の論文