Wennerberg A, Albrektsson T, Lausmaa J
Institute for Surgical Sciences, Göteborg University, Sweden.
J Biomed Mater Res. 1996 Feb;30(2):251-60. doi: 10.1002/(SICI)1097-4636(199602)30:2<251::AID-JBM16>3.0.CO;2-P.
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.
对用25微米或75微米氧化铝颗粒喷砂处理的螺旋形商业纯钛植入物进行了比较。在植入兔骨之前，对植入物表面的形貌和成分进行了研究。用25微米或75微米颗粒喷砂处理产生了两种不同的表面粗糙度，但两种表面的成分没有显著差异。在兔胫骨和股骨中植入12周后，发现与用25微米颗粒喷砂处理的植入物相比，用75微米颗粒喷砂处理的植入物具有更高的去除扭矩和更多的骨与金属接触。
