Story B J, Wagner W R, Gaisser D M, Cook S D, Rust-Dawicki A M
Sulzer Calcitek Inc, Carlsbad, CA 92008, USA.
Int J Oral Maxillofac Implants. 1998 Nov-Dec;13(6):749-57.
Cylindrical dental implants coated with cancellous structured titanium (CSTi) were studied in a dog model. CSTi-2-coated and hydroxyapatite-coated (HA) implants were placed in 8 mongrel dogs. The porosity of the CSTi-2 coating was 9% less than that of the previously studied CSTi-1, resulting in greatly improved mechanical strength and cosmetic appearance. A slightly lower level of bone ingrowth was observed for CSTi-2 than for CSTi-1. However, the in vivo attachment strength of the CSTi-2 coating was comparable both to CSTi-1 and to an HA-coated control after 8 weeks. Measured porosity is technique dependent; digital analysis of in vitro samples yielded higher porosity values than in vivo histology cross sections.
在犬模型中研究了涂有松质结构钛（CSTi）的圆柱形牙科植入物。将涂有CSTi - 2和羟基磷灰石涂层（HA）的植入物植入8只杂种犬体内。CSTi - 2涂层的孔隙率比先前研究的CSTi - 1低9%，从而使机械强度和外观有了极大改善。观察到CSTi - 2的骨向内生长水平略低于CSTi - 1。然而，8周后，CSTi - 2涂层的体内附着强度与CSTi - 1以及HA涂层对照组相当。测量的孔隙率取决于技术；体外样本的数字分析得出的孔隙率值高于体内组织学横截面。
