scholarly journals The comparative effectiveness of demineralized bone matrix, beta-tricalcium phosphate, and bovine-derived anorganic bone matrix on inflammation and bone formation using a paired calvarial defect model in rats

2011 ◽  
Vol Volume 3 ◽  
pp. 69-78 ◽  
Author(s):  
Ahad Khoshzaban ◽  
Ahad Khoshzaban ◽  
Shahriar Adibi ◽  
Maryam Bashtar ◽  
Gholam Reza Behrozi ◽  
...  
Keyword(s):  
Bone Formation ◽  
Tricalcium Phosphate ◽  
Comparative Effectiveness ◽  
Demineralized Bone Matrix ◽  
Bone Matrix ◽  
Calvarial Defect ◽  
Defect Model ◽  
Beta Tricalcium Phosphate ◽  
Demineralized Bone

Bone formation in a rat calvarial defect model after transplanting autogenous bone marrow with beta-tricalcium phosphate

2010 ◽  
Vol 112 (3) ◽  
pp. 270-277 ◽  
Author(s):  
Nobuaki Shirasu ◽  
Takaaki Ueno ◽  
Yasuhisa Hirata ◽  
Azumi Hirata ◽  
Toshimasa Kagawa ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Bone Formation ◽  
Tricalcium Phosphate ◽  
Autogenous Bone ◽  
Calvarial Defect ◽  
Defect Model ◽  
Beta Tricalcium Phosphate ◽  
Rat Calvarial Defect

scholarly journals Fabrication and Evaluation of Porous Beta-Tricalcium Phosphate/Hydroxyapatite (60/40) Composite as a Bone Graft Extender Using Rat Calvarial Bone Defect Model

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Jae Hyup Lee ◽  
Mi Young Ryu ◽  
Hae-Ri Baek ◽  
Kyung Mee Lee ◽  
Jun-Hyuk Seo ◽  
...  
Keyword(s):  
Bone Formation ◽  
Bone Graft ◽  
Tricalcium Phosphate ◽  
Calvarial Defect ◽  
Micro Ct ◽  
Porous Substrate ◽  
New Bone Formation ◽  
Defect Model ◽  
Beta Tricalcium Phosphate ◽  
Bone Graft Extender

Beta-tricalcium phosphate (β-TCP) and hydroxyapatite (HA) are widely used as bone graft extenders due to their osteoconductivity and high bioactivity. This study aims to evaluate the possibility of using porous substrate with composite ceramics (β-TCP: HA = 60% : 40%, 60TCP40HA) as a bone graft extender and comparing it with Bio-Oss. Interconnectivity and macroporosity ofβ-TCP porous substrate were 99.9% and 83%, respectively, and the macro-porosity of packed granule after crushing was 69%. Calvarial defect model with 8 mm diameter was generated with male Sprague-Dawley rats and 60TCP40HA was implanted. Bio-Oss was implanted for a control group and micro-CT and histology were performed at 4 and 8 weeks after implantation. The 60TCP40HA group showed better new bone formation than the Bio-Oss group and the bone formation at central area of bone defect was increased at 8 weeks in micro-CT and histology. The percent bone volume and trabecular number of the 60TCP40HA group were significantly higher than those of Bio-Oss group. This study confirms the usefulness of the porous 60TCP40HA composite as a bone graft extender by showing increased new bone formation in the calvarial defect model and improved bone formation both quantitatively and qualitatively when compared to Bio-Oss.

In vivo performance of combinations of autograft, demineralized bone matrix, and tricalcium phosphate in a rabbit femoral defect model

2014 ◽  
Vol 9 (3) ◽  
pp. 035010 ◽  
Author(s):  
Jinku Kim ◽  
Sean McBride ◽  
David D Dean ◽  
Victor L Sylvia ◽  
Bruce A Doll ◽  
...  
Keyword(s):  
Tricalcium Phosphate ◽  
Demineralized Bone Matrix ◽  
Bone Matrix ◽  
Defect Model ◽  
Femoral Defect ◽  
Demineralized Bone

Tissue Engineering of Bone by Osteoinductive Biomaterials

MRS Bulletin ◽  
1996 ◽  
Vol 21 (11) ◽  
pp. 36-39 ◽  
Author(s):  
Ugo Ripamonti ◽  
Nicolaas Duneas
Keyword(s):  
Tissue Engineering ◽  
Bone Formation ◽  
Type I Collagen ◽  
Demineralized Bone Matrix ◽  
Bone Matrix ◽  
Mesenchymal Cells ◽  
Tissue Response ◽  
Type I ◽  
New Bone Formation ◽  
Demineralized Bone

Recent advances in materials science and biotechnology have given birth to the new and exciting field of tissue engineering, in which the two normally disparate fields are merging into a profitable matrimony. In particular the use of biomaterials capable of initiating new bone formation via a process called osteoinduction is leading to quantum leaps for the tissue engineering of bone.The classic work of Marshall R. Urist and A. Hari Reddi opened the field of osteoinductive biomaterials. Urist discovered that, upon implantation of devitalized, demineralized bone matrix in the muscle of experimental animals, new bone formation occurs within two weeks, a phenomenon he described as bone formation by induction. The tissue response elicited by implantation of demineralized bone matrix in muscle or under the skin includes activation and migration of undifferentiated mesenchymal cells by chemotaxis, anchoragedependent cell attachment to the matrix, mitosis and proliferation of mesenchymal cells, differentiation of cartilage, mineralization of the cartilage, vascular invasion of the cartilage, differentiation of osteoblasts and deposition of bone matrix, and finally mineralization of bone and differentiation of marrow in the newly developed ossicle.The osteoinductive ability of the extracellular matrix of bone is abolished by the dissociative extraction of the demineralized matrix, but is recovered when the extracted component, itself inactive, is reconstituted with the inactive residue—mainly insoluble collagenous bone matrix. This important experiment showed that the osteoinductive signal resides in the solubilized component but needs to be reconstituted with an appropriate carrier to restore the osteoinductive activity. In this case, the carrier is the insoluble collagenous bone matrix—mainly crosslinked type I collagen.

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