Paper Title:
Biodegradable Bone Cement Using Calcium Phosphate Glass
  Abstract

In preliminary ageing test, the cement using only calcium phosphate glass as power phase cracked with 1 day in simulated body fluid because of high dissolution rate of the cement. We added 30 wt% of either β-TCP or HA to 70 wt% calcium phosphate glass as powder phase to control the dissolution rate of the cement and performed in vitro ageing test in simulated body fluid by dynamic protocol as well as static protocol to confirm the possibility of controlling. Adding either β-TCP or HA to the cement increases the setting time and decreases the compressive strength. In dynamic assay, the pH of extract is maintained over 7. However, pH decreased to around 5 in static assay. Therefore, weight loss by static protocol continuously increased for 14 days, while weight loss by dynamic protocol almost saturated. In XRD patterns of ageing cements, CaO peaks appeared. CaO peak was maximized most lately in dynamic assay of the cement adding HA and within 7 days, the cement adding HA showed higher weight loss. It is indicated that CaO formed in surface of the cement hinder the dissolution of the cement. In addition, compressive strength increased when the CaO peak was maximized.

  Info
Periodical
Key Engineering Materials (Volumes 309-311)
Main Theme
Edited by
Takashi Nakamura, Kimihiro Yamashita and Masashi Neo
Pages
861-864
DOI
10.4028/www.scientific.net/KEM.309-311.861
Citation
B. H. Lee, M. C. Kim, K. N. Kim, K. M. Kim, S. H. Choi, C. K. Kim, R. Z. LeGeros, Y. K. Lee, "Biodegradable Bone Cement Using Calcium Phosphate Glass", Key Engineering Materials, Vols. 309-311, pp. 861-864, 2006
Online since
May 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Kyung Sik Oh, Soo Ryong Kim, Philippe Boch
237
Authors: Kyung Sik Oh, Soo Ryong Kim
Abstract:Effect of the starting compostion was studied in bone cement containg coarse b-tricalcium phosphate (b-TCP) granules which was very dense and...
141
Authors: G. Daculsi, I. Khairoun, Racquel Z. LeGeros, Françoise Moreau, Paul Pilet, Xavier Bourges, Pierre Weiss, Olivier Gauthier
811
Authors: Sirirat T. Rattanachan, Charussri Lorpayoon, Piyanan Bunpayun
Abstract:Crystallized apatite behaved to plaster of Paris was prepared by the chemical method. Apatite powder was mixed with chitosan. In this study,...
839
Authors: Liam M. Grover, Sarika Patel, Y. Hu, Uwe Gbureck, J.E. Barralet
Abstract:The hydrolysis of brushite in calcium phosphate cements to form hydroxyapatite is known to result in the long term stability of the material...
311