Torque and histomorphometric evaluation of c.p. titanium screws blasted with 25- and 75-microns-sized particles of Al2O3.
A comparison was made between screw-shaped c.p. titanium implants blasted with either 25- or 75-microns particles of Al2O3. The implant surfaces were investigated with respect to topography and composition before implantation in rabbit bone. Grit blasting with 25- or 75-microns particles produced two different surface roughnesses, but no significant difference in the surface composition for the two surfaces. After 12 weeks insertion time in the rabbit tibia and femur, a higher removal torque and more bone-to-metal contact was found for the implants blasted with 75-microns particles compared with the 25-microns-blasted ones.
Wennerberg
A
A
Institute for Surgical Sciences, Göteborg University, Sweden.
Albrektsson
T
T
Lausmaa
J
J
D000537:Aluminum Oxide; D000818:Animals; D001863:Bone Screws / Q000009:adverse effects; D001842:Bone and Bones / Q000033:anatomy & histology; D006245:Hardness Tests; D007091:Image Processing, Computer-Assisted; D008297:Male; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D010316:Particle Size; D011817:Rabbits; D013499:Surface Properties; D014025:Titanium
D014025:Titanium; D000537:Aluminum Oxide