Sequential fluorescent labeling observation of maxillary sinus augmentation by a tissue-engineered bone complex in canine model / 国际口腔科学杂志·英文版
International Journal of Oral Science
;
(4): 39-46, 2009.
Article
in English
| WPRIM
| ID: wpr-278973
ABSTRACT
<p><b>AIM</b>To evaluate the effects of maxillary sinus floor elevation by a tissue-engineered bone complex of beta-tricalcium phosphate (beta-TCP) and autologous osteoblasts in dogs.</p><p><b>METHODOLOGY</b>Autologous osteoblasts from adult Beagle dogs were cultured in vitro. They were further combined with beta-TCP to construct the tissue-engineered bone complex. 12 cases of maxillary sinus floor elevation surgery were made bilaterally in 6 animals and randomly repaired with the following 3 groups of materials Group A (osteoblasts/beta-TCP); Group B (beta-TCP); Group C (autogenous bone) (n=4 per group). A polychrome sequential fluorescent labeling was performed post-operatively and the animals were sacrificed 24 weeks after operation for histological observation.</p><p><b>RESULTS</b>Our results showed that autologous osteoblasts were successfully expanded and the osteoblastic phenol-types were confirmed by ALP and Alizarin red staining. The cells could attach and proliferate well on the surface of the beta-TCP scaffold. The fluorescent and histological observation showed that the tissue-engineered bone complex had an earlier mineralization and more bone formation inside the scaffold than beta-TCP along or even autologous bone. It had also maximally maintained the elevated sinus height than both control groups.</p><p><b>CONCLUSION</b>Porous beta-TCP has served as a good scaffold for autologous osteoblasts seeding. The tissue-engineered bone complex with beta-TCP and autologous osteoblasts might be a better alternative to autologous bone for the clinical edentulous maxillary sinus augmentation.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Osteoblasts
/
Osteogenesis
/
Pathology
/
Physiology
/
General Surgery
/
Transplantation
/
Transplantation, Autologous
/
Biocompatible Materials
/
Calcification, Physiologic
/
Calcium Phosphates
Limits:
Animals
Language:
English
Journal:
International Journal of Oral Science
Year:
2009
Type:
Article
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