ABSTRACT
Commercially pure titanium (cp Ti) is the main material used in the manufacture of dental implants. To improve the success rate of dental implant treatment some dental implant surface treatment methodologies have been developed. To characterize the surfaces of dental implants are used scanning electron microscope (SEM) analysis, roughness and wettability measurements, in-vitro cell culture and in-vivo animal experiments. Among the techniques cited, the simplest are SEM analyzes, of roughness and wettability measurements. Some papers available in the literature show values of surface roughness parameters and suggest the use of the Ra value without presenting any explanation for the choice of this parameter. In the present work, a mathematical model is proposed to quantify the relationship between some parameters of the 3D roughness (Ra, Rq, Rz, Rms, Peak, Vale, PV, R3z and Smax) with the wettability and surface energy of cp Ti with two grain sizes (micrometric and sub-micrometric). The results showed that the properties of the acid treated cp Ti surfaces are more influenced by the roughness parameters Ra and Rms.
Keywords
titanium; roughness; wettability; LASSO methodology
