Paper Title:
Bone Formation of Intrabony Defects in Beagle Dogs Using Calcium Phosphate Glass and Glass-Ceramics
  Abstract

The purpose of this study was to compare the bone regenerative effect of calcium phosphate glass and glass-ceramics in the system of CaO-CaF2-P2O5-MgO-ZnO, which is already reported that promoted the bone-like tissue formation in vitro and formed new bone in Sprague-Dawley rats. We prepared calcium phosphate glass and glass-ceramics with Ca/P ratio of 0.6 using the system CaO-CaF2-P2O5-MgO-ZnO and subsequently milled to 400 µm. 4×4 mm 1-wall intrabony defects of six beagle dogs were surgically created and used in this study. 8 weeks after transplantation of the prepared calcium phosphate glass and glass-ceramics in the experimental group 1 and 2, respectively, the animals were sacrificed. No root resorption or ankylosis were observed in all groups. It can be examined that the prepared glass-ceramics were more effective in alveolar bone regeneration with statistical signigicant difference. In cementum regeneration, both the prepared glass and glass-ceramics showed significantly different effect. However, there were no statistical significant difference neither in glass nor glass-ceramics in the amounts of junctional epithelium migration and connective tissue adhesion. Further study is required to control the flowability as well as reduce the absorption rate in vivo.

  Info
Periodical
Key Engineering Materials (Volumes 284-286)
Main Theme
Edited by
Panjian Li, Kai Zhang and Clifford W. Colwell, Jr.
Pages
957-960
DOI
10.4028/www.scientific.net/KEM.284-286.957
Citation
S. H. Choi, D.H. Baik, C.S. Kim, C. K. Kim, K. N. Kim, K. M. Kim, R. Z. LeGeros, Y. K. Lee, "Bone Formation of Intrabony Defects in Beagle Dogs Using Calcium Phosphate Glass and Glass-Ceramics ", Key Engineering Materials, Vols. 284-286, pp. 957-960, 2005
Online since
April 2005
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