Porous titanium for biomedical applications: An experimental study on rabbits
Med. oral patol. oral cir. bucal (Internet)
; 15(2): 407-412, mar. 2010. ilus
Article
in English
| IBECS
| ID: ibc-80252
Responsible library:
ES1.1
Localization: BNCS
ABSTRACT
Objective:
The aim of this study was to carry out an in vivo assessment of bone ingrowth in two different typesof porous titanium -the first being completely porous, and the second with a porous surface and dense nucleus,manufactured by powder metallurgy- and to evaluate their mechanical properties. Studydesign:
Ten scaffoldsfrom each group were submitted to metallographic analysis and compression tests. Next, two scaffolds of eachtype were inserted into 14 rabbits, which were sacrificed 8 weeks after surgery. The samples were submitted forhistological examination.Results:
Metallographic analysis revealed interconnected pores, and the average interconnectedpore diameter was about 360 mm, with 36% total porosity. The totally porous titanium samples and thetitanium samples with porous surface and dense nucleus showed an average compressive strength of 16.19 MPaand 69.27 MPa, respectively. After 8 weeks, the animals showed bone ingrowth, even into the most internal pores.Conclusions:
The pore morphology was effective in permitting bone ingrowth in both groups. Titanium scaffoldswith a porous surface and dense nucleus showed the best mechanical properties and most adequate interface (AU)
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Collection:
National databases
/
Spain
Database:
IBECS
Main subject:
Titanium
/
Osseointegration
Limits:
Animals
Language:
English
Journal:
Med. oral patol. oral cir. bucal (Internet)
Year:
2010
Document type:
Article
Institution/Affiliation country:
CTA/Brazil
/
State University of São Paulo (UNESP)/Brazil