Carbonate apatite bone replacement: Learn from the bone

Research output: Contribution to journalArticle

Abstract

Bone is not composed of hydroxyapatite (HAp), but of carbonate apatite (CO3Ap). Although the decomposition of CO3Ap begins at around 400°C, and thus, the fabrication of CO3Ap blocks by sintering is difficult, CO3Ap blocks have recently been fabricated via a dissolutionprecipitation reaction in Na2HPO4 solution using a CaCO3 block as a precursor. Compared to sintered HAp, which is not resorbed by osteoclasts, CO3Ap is resorbed by osteoclasts. Furthermore, CO3Ap upregulates the differentiation of osteoblasts. Therefore, CO3Ap can be used as a replacement for bones with regards to the so-called bone remodeling process. Clinical trials have confirmed the safety and usefulness of CO3Ap granules, including the replacement of CO3Ap granules to new bone. In Dec 2017, CO3Ap was approved as an artificial bone substitute by the Pharmaceuticals and Medical Devices Agency. CO3Ap granules can be used for all dental and maxillofacial surgeries, including the bone reconstruction aimed for dental implantation.

Original languageEnglish
Pages (from-to)595-601
Number of pages7
JournalJournal of the Ceramic Society of Japan
Volume127
Issue number9
DOIs
Publication statusPublished - Jan 1 2019

Fingerprint

Apatite
apatites
bones
Carbonates
carbonates
Bone
Durapatite
Hydroxyapatite
Bone Substitutes
Osteoblasts
osteoblasts
Surgery
surgery
Sintering
Drug products
carboapatite
implantation
safety
sintering
Decomposition

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

Cite this

Carbonate apatite bone replacement : Learn from the bone. / Ishikawa, Kunio.

In: Journal of the Ceramic Society of Japan, Vol. 127, No. 9, 01.01.2019, p. 595-601.

Research output: Contribution to journalArticle

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