Torque Removal Force for Osseointegrated Implants - Two Experimental Studies
S. Afr. j. surg. (Online)
; 46(1): 18-21, 2008.
Article
en En
| AIM
| ID: biblio-1270998
Biblioteca responsable:
CG1.1
ABSTRACT
OBJECTIVE. To introduce a rabbit-based model for testing the torque removal force (TRF) of implants and to compare the TRF of a series of titanium implants. METHODS. Two experiments were performed at the University of the Witwatersrand. In the first; a Swedish- (SSM-N) or a South African-manufactured (SSM-S) implant was implantedinto the tibiae of 12 rabbits and the TRF measured at 1; 3 and 6 months. In the second experiment; the TRF of 4 South African-manufactured titanium implants in the tibia or femur of 32 rabbits were compared at 3 and 6 weeks. The implants were 1 threaded machined (SSM-S); and 3 surface-enhanced - 1threaded (SLA); 1 threaded tapered (MTT) and 1 pitted (RI). RESULTS. In experiment 1; TRF increased significantly with time (p0.05) but there was no significant difference between TRF for the South African and Swedish machined-surface implant types. In experiment 2; the TRF of the MTT implant was significantly greater (p0.0001) than the other 3 types; which did not differ significantly from each other. Time had no significant effect. CONCLUSION. In an internationally used rabbit-based model; South African and Swedish machined-surface titanium implants were equivalent; surface-enhanced implants produced higher TRF; and a tapered implant showed the highest TRF
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Base de datos:
AIM
Asunto principal:
Procedimientos Quirúrgicos Operativos
/
Implantación de Cuchilla (Odontología)
/
Implantación Dental
Idioma:
En
Revista:
S. Afr. j. surg. (Online)
Año:
2008
Tipo del documento:
Article