Surface-layer Modification of Hydroxyapatite Ceramic with Acid and Heat Treatments
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概要
- 論文の詳細を見る
The purpose of this study was to examine or characterize the surface layer of a calcium phosphate ceramic with a gradual compositional change from α-tricalcium phosphate (α-TCP) on the surface to hydroxyapatite (HAP) on the inside. The surface of a dense HAP ceramic was acid-treated for 1 hour with orthophosphoric acid (H_3PO_4) solutions of several concentrations (0.5, 1.0 and 5.0 mol/L) or a buffered solution (pH 4.0) consisting of phosphate solutions. After acid treatment, specimens were heat-treated at 1,250℃ for 1 hour. X-ray photoelectron spectroscopy revealed that the compositional gradient layer could be modified on the surface of the HAP ceramic with all acid and heat treatments, and that 5.0 mol/L H_3PO_4 solution and heat treatments had a maximal thickness of approximately 2μm for the surface-modified layer. It was confirmed that the outermost layer of HAP ceramics modified with the treatments, except 5.0 mol/L H_3PO_4 solution, showed a compound such α-TCP.
- 日本歯科理工学会の論文
著者
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ASAOKA Kenzo
Department of Biomaterials and Bioengineering, The University of Tokushima Graduate School of Oral S
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Asaoka K
Tokushima Univ. Tokushima Jpn
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Asaoka Kenzo
Univ. Tokushima Graduate School Of Oral Sci. Tokushima Jpn
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Asaoka Kenzo
Department Of Biomaterials And Bioengineering Institute Of Health Biosciences The University Of Toku
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Asami K
Institute For Materials Research Tohoku University
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KON Masayuki
Department of Dental Engineering, School of Dentistry, Tokushima University
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MIYAMOTO Youji
First Department of Oral and Maxillofacial Surgery, School of Dentistry, Tokushima University
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KAWANO Fumiaki
Department of Removable Prosthodontics, School of Dentistry, Tokushima University
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Hirakata Luciana
Department Of Prosthodontics School Of Dentistry Pontifical Catholic University Of Rio Grande Do Sul
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Asaoka K
Department Of Biomaterials And Bioengineering Course Of Maxillo-oral And Regenerative Medicine Insti
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Kon Masayuki
Department Of Biomaterials And Bioengineering Course Of Maxillo-oral And Regenerative Medicine Insti
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Kawano F
Department Of Oral Care And Clinical Education School Of Dentistry Tokushima University
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Kawano Fumiaki
Department Of Oral Care And Clinical Education Tokushima University Hospital
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Miyamoto Youji
Dep. Of Therapic Regulation For Oral Tumors Inst. Of Health Biosciences The Univ. Of Tokushima Gradu
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Miyamoto Youji
Division Of Dentistry And Oral Surgery School Of Medicine Akita University
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Miyamoto Youji
First Department Of Oral And Maxillofacial Surgery School Of Dentistry The University Of Tokushima
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Kon Masayuki
徳島大学 歯 歯理工
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Kon M
Department Of Biomaterials And Bioengineering Course Of Maxillo-oral And Regenerative Medicine Insti
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Kon Masayuki
Department Of Dental Engineering School Of Dentisby Tokushima University
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Asaoka Kenzo
Department Of Biomaterials & Bioengineering Institute Of Health Biosciences The University Of Tokushima Graduate School
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Hirakata LM
Department of Prosthodontics, Faculty of Odontology, Pontifical Catholic University of Rio Grande do Sul
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Miyamoto Y
First Department of Oral and Maxillofacial Surgery
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