Evaluation of bone ingrowth into porous titanium implant: histomorphometric analysis in rabbits
Braz. oral res
; 24(4): 399-405, Oct.-Dec. 2010. ilus, tab
Article
in English
| LILACS
| ID: lil-569217
Responsible library:
BR1.1
ABSTRACT
A porous material for bone ingrowth with adequate pore structure and appropriate mechanical properties has long been sought as the ideal bone-implant interface. This study aimed to assess in vivo the influence of three types of porous titanium implant on the new bone ingrowth. The implants were produced by means of a powder metallurgy technique with different porosities and pore sizes Group 1 = 30 percent and 180 µm; Group 2 = 30 percent and 300 µm; and Group 3 = 40 percent and 180 µm;. Six rabbits received one implant of each type in the right and left tibiae and were sacrificed 8 weeks after surgery for histological and histomorphometric analyses. Histological analysis confirmed new bone in contact with the implant, formed in direction of pores. Histomorphometric evaluation demonstrated that the new bone formation was statistically significantly lower in the group G1 than in group G3, (P = 0.023). Based on these results, increased porosity and pore size were concluded to have a positive effect on the amount of bone ingrowth.
Full text:
Available
Collection:
International databases
Database:
LILACS
Main subject:
Titanium
/
Osseointegration
/
Coated Materials, Biocompatible
Limits:
Animals
Language:
English
Journal:
Braz. oral res
Journal subject:
Dentistry
Year:
2010
Document type:
Article
/
Project document