Fabrication of B-type carbonate apatite blocks by the phosphorization of free-molding gypsum-calcite composite

Chowdury Tanira Zaman, Akari Takeuchi, Shigeki Matsuya, Q. H.M.Shawket Zaman, Kunio Ishikawa

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

B-type carbonate apatite (CO3Ap) block may be an ideal artificial bone substitute because it is closer in chemical composition to bone mineral. In the present study, the feasibility to fabricate CO3Ap blocks was investigated using compositional transformation, which was based on the dissolution-precipitation reaction of a gypsum-calcite composite with free-molding behavior. For the compositional change, or phosphorization, gypsum-calcite composites of varying CaCO3 contents were immersed in 1 mol/L (NH4)3PO4 aqueous solution at 100°C for 24 hours. No macroscopic changes were found after the treatment, whereas microscopic change was observed at SEM level. X-ray diffraction, Fourier transform infrared spectroscopy and CHN analysis indicated that the composites were B-type CO3Ap containing approximately 6-7 wt% of CO3, a value similar to that of biological bone apatite. Diametral tensile strength of the CO3Ap block was approximately 1-3 MPa. Based on the results obtained, it was therefore concluded that gypsum-calcite was a good candidate for the fabrication of CO3Ap blocks, coupled with the advantage that the composite can be molded to any shape by virtue of the setting property of gypsum.

Original languageEnglish
Pages (from-to)710-715
Number of pages6
Journaldental materials journal
Volume27
Issue number5
DOIs
Publication statusPublished - Oct 28 2008

Fingerprint

Calcium Sulfate
Calcium Carbonate
Calcite
Gypsum
Apatite
Molding
Carbonates
Fabrication
Bone
Composite materials
Bone Substitutes
Bone and Bones
Apatites
Tensile Strength
Fourier Transform Infrared Spectroscopy
X-Ray Diffraction
Fourier transform infrared spectroscopy
Minerals
Dissolution
Tensile strength

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Dentistry(all)

Cite this

Fabrication of B-type carbonate apatite blocks by the phosphorization of free-molding gypsum-calcite composite. / Zaman, Chowdury Tanira; Takeuchi, Akari; Matsuya, Shigeki; Zaman, Q. H.M.Shawket; Ishikawa, Kunio.

In: dental materials journal, Vol. 27, No. 5, 28.10.2008, p. 710-715.

Research output: Contribution to journalArticle

Zaman, Chowdury Tanira ; Takeuchi, Akari ; Matsuya, Shigeki ; Zaman, Q. H.M.Shawket ; Ishikawa, Kunio. / Fabrication of B-type carbonate apatite blocks by the phosphorization of free-molding gypsum-calcite composite. In: dental materials journal. 2008 ; Vol. 27, No. 5. pp. 710-715.
@article{56ecb584df014f7ca0eb57798f7c96c7,
title = "Fabrication of B-type carbonate apatite blocks by the phosphorization of free-molding gypsum-calcite composite",
abstract = "B-type carbonate apatite (CO3Ap) block may be an ideal artificial bone substitute because it is closer in chemical composition to bone mineral. In the present study, the feasibility to fabricate CO3Ap blocks was investigated using compositional transformation, which was based on the dissolution-precipitation reaction of a gypsum-calcite composite with free-molding behavior. For the compositional change, or phosphorization, gypsum-calcite composites of varying CaCO3 contents were immersed in 1 mol/L (NH4)3PO4 aqueous solution at 100°C for 24 hours. No macroscopic changes were found after the treatment, whereas microscopic change was observed at SEM level. X-ray diffraction, Fourier transform infrared spectroscopy and CHN analysis indicated that the composites were B-type CO3Ap containing approximately 6-7 wt{\%} of CO3, a value similar to that of biological bone apatite. Diametral tensile strength of the CO3Ap block was approximately 1-3 MPa. Based on the results obtained, it was therefore concluded that gypsum-calcite was a good candidate for the fabrication of CO3Ap blocks, coupled with the advantage that the composite can be molded to any shape by virtue of the setting property of gypsum.",
author = "Zaman, {Chowdury Tanira} and Akari Takeuchi and Shigeki Matsuya and Zaman, {Q. H.M.Shawket} and Kunio Ishikawa",
year = "2008",
month = "10",
day = "28",
doi = "10.4012/dmj.27.710",
language = "English",
volume = "27",
pages = "710--715",
journal = "Dental Materials Journal",
issn = "0287-4547",
publisher = "Japanese Society for Dental Materials and Devices",
number = "5",

}

TY - JOUR

T1 - Fabrication of B-type carbonate apatite blocks by the phosphorization of free-molding gypsum-calcite composite

AU - Zaman, Chowdury Tanira

AU - Takeuchi, Akari

AU - Matsuya, Shigeki

AU - Zaman, Q. H.M.Shawket

AU - Ishikawa, Kunio

PY - 2008/10/28

Y1 - 2008/10/28

N2 - B-type carbonate apatite (CO3Ap) block may be an ideal artificial bone substitute because it is closer in chemical composition to bone mineral. In the present study, the feasibility to fabricate CO3Ap blocks was investigated using compositional transformation, which was based on the dissolution-precipitation reaction of a gypsum-calcite composite with free-molding behavior. For the compositional change, or phosphorization, gypsum-calcite composites of varying CaCO3 contents were immersed in 1 mol/L (NH4)3PO4 aqueous solution at 100°C for 24 hours. No macroscopic changes were found after the treatment, whereas microscopic change was observed at SEM level. X-ray diffraction, Fourier transform infrared spectroscopy and CHN analysis indicated that the composites were B-type CO3Ap containing approximately 6-7 wt% of CO3, a value similar to that of biological bone apatite. Diametral tensile strength of the CO3Ap block was approximately 1-3 MPa. Based on the results obtained, it was therefore concluded that gypsum-calcite was a good candidate for the fabrication of CO3Ap blocks, coupled with the advantage that the composite can be molded to any shape by virtue of the setting property of gypsum.

AB - B-type carbonate apatite (CO3Ap) block may be an ideal artificial bone substitute because it is closer in chemical composition to bone mineral. In the present study, the feasibility to fabricate CO3Ap blocks was investigated using compositional transformation, which was based on the dissolution-precipitation reaction of a gypsum-calcite composite with free-molding behavior. For the compositional change, or phosphorization, gypsum-calcite composites of varying CaCO3 contents were immersed in 1 mol/L (NH4)3PO4 aqueous solution at 100°C for 24 hours. No macroscopic changes were found after the treatment, whereas microscopic change was observed at SEM level. X-ray diffraction, Fourier transform infrared spectroscopy and CHN analysis indicated that the composites were B-type CO3Ap containing approximately 6-7 wt% of CO3, a value similar to that of biological bone apatite. Diametral tensile strength of the CO3Ap block was approximately 1-3 MPa. Based on the results obtained, it was therefore concluded that gypsum-calcite was a good candidate for the fabrication of CO3Ap blocks, coupled with the advantage that the composite can be molded to any shape by virtue of the setting property of gypsum.

UR - http://www.scopus.com/inward/record.url?scp=54349125333&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54349125333&partnerID=8YFLogxK

U2 - 10.4012/dmj.27.710

DO - 10.4012/dmj.27.710

M3 - Article

C2 - 18972788

AN - SCOPUS:54349125333

VL - 27

SP - 710

EP - 715

JO - Dental Materials Journal

JF - Dental Materials Journal

SN - 0287-4547

IS - 5

ER -