scholarly journals One case with the split crest and GBR using interconnective porous hydroxyapatite ceramic (NEOBONE®) in a patient with abnormal alveolar bone resorption in the anterior region of the upper jaw One case with the split crest and GBR using interconnective porous hydroxyapatite ceramic (NEOBONE®) in a patient with abnormal alveolar bone resorption in the anterior region of the upper jaw

2020 ◽  
Vol 40 (3) ◽  
pp. 213
Author(s):  
Yoshiaki NINOMIYA ◽  
Masaaki TAKECHI
2018 ◽  
Vol 768 ◽  
pp. 135-139 ◽  
Author(s):  
Xin Yi Zhao ◽  
Xiao Peng Li ◽  
Kang Zhao ◽  
Yu Fei Tang

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.


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

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