Biocompatibility of new bone tissue engineering scaffolds in vivo / 华西口腔医学杂志
West China Journal of Stomatology
;
(6): 447-450, 2009.
Artículo
en Chino
| WPRIM
| ID: wpr-242981
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the biocompatibility of new bone tissue engineering scaffolds, AD, L-polylactic acid (PDLLA)/polylactic acid-polyethylene glycol-polylactic acid-polylactic acid (PLA-PEG-PLA)/Tricalcium phosphate and B PDLLA/PLA-PEG-PLA in vivo, compared with PDLLA in repair of a rabbit mandibular body defect.</p><p><b>METHODS</b>24 New Zealand adult rabbits were divided into 4 groups randomly. 15 mm x 6 mm defects were made surgically in the bilateral mandibular bodies and each hemi-mandible was assigned as an experimental unit. The defects were randomly repaired with scaffold materials in each group. Specimens obtained were evaluated with general observation, X-ray, histomorphology and computerized graphical analysis at 2, 4 , 8, 12 weeks after surgery.</p><p><b>RESULTS</b>Compared with PDLLA, the new scaffold materials B showed biocompatibility. At the same time the quantity of new bone produced was much more than that in control group (P<0.05). The new scaffold materials A showed the clear chronic granulomatous inflammation.</p><p><b>CONCLUSION</b>New scaffold material B had sound biocompatibility. It was much better than PDLLA. So it may be an ideal bone tissue engineering scaffold material. A is not adapted to be used as scaffold material.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Poliésteres
/
Polietilenglicoles
/
Polímeros
/
Materiales Biocompatibles
/
Huesos
/
Fosfatos de Calcio
/
Ácido Láctico
/
Ingeniería de Tejidos
/
Andamios del Tejido
/
Lactatos
Límite:
Animales
Idioma:
Chino
Revista:
West China Journal of Stomatology
Año:
2009
Tipo del documento:
Artículo
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