Histological analysis of bone/heteroplastic implant interfaces in dog tibia.
This work presents histological analysis of interfaces between bone and heteroplastic implants in dog tibias. The study was performed in four tibias (of four mongrel dogs) into which cylindrical implants were inserted. One ceramic (titania) implant and three grit-blasted titanium implants (with sandblasted and acid-corroded surfaces) were chosen for histological analysis of the implant surface/bone tissue interface. The implants remained in the tibias for eight months and none were loaded during this period. The animals were subsequently sacrificed and the samples were processed for analysis. Light microscope analysis revealed a large amount of osteoid tissue and proximity of osteoblasts and osteocytes to the implant surfaces. In addition, little or no fibrous tissue was observed between the bone and implant surfaces. The titanium implants presented better osseointegration than did the ceramic implant.
Department of Anatomy, Methodist University of São Paulo, Rua do Sacramento, 230, São Bernardo do Campo, 09640-000, SP-Brazil. plcandido@globo.com
Paulo Laino
PL
Cândido
Bruno
B
König
D000818:Animals; D001672:Biocompatible Materials; D001842:Bone and Bones / Q000033:anatomy & histology* / Q000502:physiology / Q000601:surgery; D004285:Dogs; D008334:Mandible / Q000033:anatomy & histology / Q000502:physiology / Q000601:surgery; D008437:Maxilla / Q000033:anatomy & histology / Q000502:physiology / Q000601:surgery; D008447:Maxillofacial Prosthesis; D010012:Osteogenesis; D019736:Prostheses and Implants; D014025:Titanium
D001672:Biocompatible Materials; D014025:Titanium