In vitro cartilage formation on porous hydroxyapatite ceramic granules

In Vitro ◽  
1985 ◽  
Vol 21 (6) ◽  
pp. 353-357 ◽  
Author(s):  
Herman S. Cheung
Keyword(s):  
Hydroxyapatite Ceramic ◽  
Porous Hydroxyapatite ◽  
Cartilage Formation ◽  
Porous Hydroxyapatite Ceramic

Preparation of a Hydroxyapatite Ceramic with Comblike Tubules Structure and its Permeablity

2018 ◽  
Vol 768 ◽  
pp. 135-139 ◽  
Author(s):  
Xin Yi Zhao ◽  
Xiao Peng Li ◽  
Kang Zhao ◽  
Yu Fei Tang
Keyword(s):  
Cross Section ◽  
Longitudinal Section ◽  
Hydraulic Conductance ◽  
Hydroxyapatite Ceramic ◽  
Porous Hydroxyapatite ◽  
Dentin Tubule ◽  
Hydroxyapatite Powder ◽  
Hydroxyapatite Ceramics ◽  
Porous Hydroxyapatite Ceramic ◽  
C 30

The objectives of this study are to prepare a porous hydroxyapatite ceramic which has dentin tubule-like structure and determine its permeability. Slurry of hydroxyapatite powder, deionized water and a binder was poured into a ring which was placed on a freezing plate.The hydroxyapatite slurry was freezed in a certain rate (by controlling the temperature of the freeze plate at −15°C, −30°C and −45°C) for a certain period of time, then the freezed sample was freezing dried to remove the frozen vehicle, followed by being sintered at 1250 °C for 2 h. After that，the morphology of the cross section and longitudinal section of the sintered porous hydroxyapatite ceramic was observed by SEM and the hydraulic conductance of cross section discs of the sintered porous hydroxyapatite were determined using a self-made micro-flowing permeability tester. Results showed that the prepared hydroxyapatite ceramics having bottom-up unidirectional comblike tubule structure and the tubule diameters associated with the temperature of freezing plate.The ceramic discs prepared on the freezing plate of −45°C exhibited similarity to nature dentin tubule, with a diameter of 9.72±3.41mm and a hydraulic conductance of 0.16±0.09 ml×min-1×cm-2×cm×H2O-1.

DRUG INFILTRATION IN POROUS HYDROXYAPATITE CERAMIC AND TISSUE RESPONSE

2008 ◽  
Vol 103 (1) ◽  
pp. 66-71
Author(s):  
L. BERZINA-CIMDINA ◽  
R. SERZANE ◽  
I. SALMA ◽  
M. PILMANE ◽  
G. SALMS ◽  
...  
Keyword(s):  
Tissue Response ◽  
Hydroxyapatite Ceramic ◽  
Porous Hydroxyapatite ◽  
Porous Hydroxyapatite Ceramic

scholarly journals A New Porous Hydroxyapatite Ceramic Prepared by Cold Isostatic Pressing and Sintering Synthesized Flaky Powder

1994 ◽  
Vol 13 (1) ◽  
pp. 25-35,124 ◽  
Author(s):  
Hideaki ITOH ◽  
Yuichi WAKISAKA ◽  
Yoko OHNUMA ◽  
Yoshinori KUBOKI
Keyword(s):  
Cold Isostatic Pressing ◽  
Hydroxyapatite Ceramic ◽  
Porous Hydroxyapatite ◽  
Isostatic Pressing ◽  
Porous Hydroxyapatite Ceramic
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