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By I. Turkyilmaz
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The resulting roughness is dependent on the bulk material, the surface microstructure, the acid and the soaking time. 0 µm. Few analyses of the surface layer have been found, but speculative a titanium hydride layer could form due to the presence of hydrogen ions in the acid. , 2006). The dental implant with acid etching presented implant surface morphology similar to Master Plus R (Conexão Sistemas e Protese) and Frialit Plus R (Maillefer, Swaziland). The bone response to acid etched implants has been compared to machined implants in animal models.
1991). , 2008). Further, in the latter study it was shown that hydroxyapatite forms directly at the implant surface shown in high-resolution transmission electron microscopy (TEM). 2 Sandblasted surface Increased roughness of an implant could be achieved by blasting the surface by small particles, usually called sandblasting or grit blasting (Figure 2). When the particles hit the implant surface it will create a crater. The surface roughness is hence dependent on the bulk material, the particle material, the particle size, the particle shape, the particle speed and the density of particles.
The main objective for the development of implant surface modifications is to promote osseointegration, with faster and stronger bone formation. This will likely confer better stability during the healing process, which, preferentially, will improve the clinical performance in the area of poor bone quality and quantity. Furthermore, such promotion may, in turn, accelerate the bone healing and thereby allowing immediate or early loading protocols. Recently growing micro and nano- technology is rapidly advancing surface engineering in implant dentistry.