1. Mariam Zoulgami1, Laura Epure1, J.J. Moore2, L’Hocine Yahia1
A porous Calcium Phosphate based Bioceramic
prepared by SHS method
for guided bone regeneration
Mariam Zoulgami1, Laura Epure1, J.J. Moore2, L’Hocine Yahia1
1.Biomedical Engineering Institute, Laboratory for the Inovation and Analysis of Bioperformance, École Polytechnique de Montréal, Canada
2. Center for Commercial Application of Combustion in space (CCACS), Colorado School of Mines, Colorado, USA
Bioceramic and SHS Process
Bioceramics and SHS method

2. Biomedical applications
Orthopaedics
Maxillo-facial and cranial surgeries
Dentistry
Bioceramic and SHS Process

3. Bioceramic and SHS Process
Class of Bioceramics
Resorbable
bioactive
ceramics
Surface
bioactive
ceramics
Bioinert
ceramics
HA (low crystaline)
-TCP
-TCP
OCP
TetCP
DCPD
HA/TCP
Aragonite
Coral
etc… HA
Bioglass®
A-W glass Ceramics
HA/Bioglass
Al2O3/HA
Al2O3/Bioglass
Si3N4/Bioglass
SiC/Bioglass
ect…
Al2O3
ZrO2
TiO2
SiC
Si3N4
etc…
Bioceramic and SHS Process

4. Bioceramic and SHS Process
Functionality
Bioactive ceramics
Rapid proliferation
of new bone
Through
Osteoconductive
process
Bioceramic and SHS Process

5. Ceramic powder methods
Ceramic synthesis
Solid-state
Micro-wave method
Ceramic process
Combustion Synthesis
Wet methods
Sol-gel method 
Hydrothermal method 
Bioceramic and SHS Process

6. Bioceramic and SHS Process
Bioceramics process
Conventionnel methods
Powder synthetis
Powder compaction
Drying
Porogen
Sintering
(1100 ~1400 °C)
Bioceramic and SHS Process

7. Self-propagating High temperature Synthesis (SHS)
Mixing the reaction powders
Powder compaction 1 2
Igniting the green pellet by exposing it to a heat source
Propagation of combustion wave through the reactant mixture 3 4
Bioceramic and SHS Process

8. Advantages of the SHS technique
Materials with better control of
porosity
Personalized implants
Functionally graded materials
Fast reactions
Economic and simple process
Bioceramic and SHS Process

9. Materials prepared by SHS process
SHS method  good alternative
Ceramics (e.g. Si3N4, Al2O3)
Shape memory alloys (e.g. TiNi)
High temperature intermetallic compounds
Thin films and coatings (e.g. TiB2)
Functionally-graded materials (e.g. TiC+Ni)
Composite materials (e.g. TiC+Al2O3+Al)
Bioceramic and SHS Process

10. The main challenge of the implant technology
Our objective
To use the SHS technique for developpment of new generation of implant materials with :
Biological response
Optimum of biodegradability
Enhanced mechanical properties
Bioceramic and SHS Process

11. Choice of bioceramic and parameters
Β-TCP : Ca3(PO4)2
Parameters:
pore diameter : 150 µm Φ  250 µm
P1 = 150 µm
P2 = 200 µm
P3 = 250 µm
pore volume : 60%
Sample shape: cylinder (h = 20mm; D = 20mm)
Bioceramic and SHS Process

12. Scanning Electron Microscopy-1-
(x35)
(x12)
(x50)
Bioceramic and SHS Process

13. Scanning Electron Microscopy-2-
(x1000)
(x25.000)
Bioceramic and SHS Process

14. Characterization - diffraction RX
β -TCP
α –TCP
Ca2P2O7
Bioceramic and SHS Process

15. Bioceramic and SHS Process
MTT TEST
Bioceramic and SHS Process

16. Conclusion & future prospects
Originality of the method
Better control of pore size and distribution
Simple single step procedure
Materials of high purity
future prospects
Functionally graded ceramics
Biocombatibility and biodegradation investigations
Mechanical properties studies
Bioceramic and SHS Process

17. Bioceramic and SHS Process
Thanks for the collaboration of
&
Bioceramic and SHS Process