Journal of Oral Tissue Engineering
Online ISSN : 1880-0823
Print ISSN : 1348-9623
ISSN-L : 1348-9623
原著論文
Thin Carbonate-containing Apatite Coating of a Titanium Web using a Molecular Precursor Method under Oxygen Gas Introduction
Tohru HAYAKAWAAkihiro AMETANIYoshinori KUBOKIMitsunobu SATO
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2009 年 6 巻 3 号 p. 201-210

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Thin carbonate-containing apatite (CA) coatings were deposited onto titanium webs (TW) using a molecular precursor method. The volumetric porosity and fiber diameter of the TW were 87 % and 50 mm, respectively. A molecular precursor solution was obtained by adding dibutylammonium diphosphate salt to Ca-EDTA/amine ethanol solution by adjusting the Ca/P ratio to 1.67. Two molecular precursor solutions with different calcium ion concentrations, 0.157 mmol/g (0.157-precursor) and 0.470 mmol/g (0.470-precursor), were prepared. Each sintered TW was immersed in the molecular precursor solution and then heated at 600°C for 2 hr under oxygen gas introduction. Without oxygen gas, the CA coated TW appeared darker and blacker. Oxygen gas introduction produced a whiter TW appearance after CA coating.
Three-times coating of 0.157-precursor produced a CA coating that covered the surface of the TW as well as its center. By using the 0.470-presursor, a single application of CA covered the inside as well as the surface of the TW.
Increasing the calcium ion concentration of the molecular precursor solution enabled one-time application for effective CA coating not only of the surface of the TW but also its center. In conclusion, one-time application of 0.470-precursor solution during oxygen gas introduction produces a sufficiently CA coated TW.

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© 2009 by Japanese Association of Regenerative Dentistry
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