A removal torque and histomorphometric study of bone tissue reactions to commercially pure titanium and Vitallium implants.
Screw-shaped commercially pure (CP) titanium and Vitallium implants were inserted in the rabbit tibial metaphysis. After a healing period of 3 months, it was demonstrated that a higher torque was needed to remove the CP titanium implants (average 24.9 Ncm) compared to Vitallium implants (average 11.7 Ncm). The histomorphometric part of the study revealed more bone-to-metal contact for the CP titanium implants (average 34.7%) compared to the Vitallium implants (average 21.7%). The results obtained in this study could be explained by differences in the topography or in biocompatibility of the metals, or a combination of these two factors.
Johansson
C B
CB
University of Göteborg, Sweden.
Sennerby
L
L
Albrektsson
T
T
D000818:Animals; D001672:Biocompatible Materials; D001842:Bone and Bones; D016348:Osseointegration; D019736:Prostheses and Implants; D011817:Rabbits; D012399:Rotation; D013314:Stress, Mechanical; D013499:Surface Properties; D013977:Tibia; D014025:Titanium; D014800:Vitallium
D001672:Biocompatible Materials; D014800:Vitallium; D014025:Titanium