Study of the influence of acid etching treatments on the superficial characteristics of Ti

Abstract

Modifications in texture and surface chemistry are commonly used to increase the biologic response to implants. We evaluated the influence of five different acid etching treatments on the chemical and topographical superficial characteristics of cpTi grade IV discs (test groups). One group of samples were only polished (control group). The samples were analyzed by electron microscopy (SEM, EDS), atomic force microscopy, and grazing incidence XRD. The acid etching treatments which produced higher values for the amplitude roughness parameters showed a combination of strong acids (HF and HCl/H 2 SO 4 ) at high concentrations, with a relatively high temperature (≥ 60 °C) for a considerable time (≥ 60 min). Titanium and oxygen were the only elements detected by EDS on the surface in all groups, whereas titanium hydride was detected when the samples were analyzed by GIXRD. Only the group subjected to thermal treatment showed presence of rutile phase on the surface.

Dental implants inserted in fresh extraction sockets versus healed sites: A systematic review and meta-analysis

“…It is known that the surface properties of dental implants such as topography and chemistry are relevant for the osseointegration process influencing ionic interaction, protein adsorption and cellular activity at the surface. 101 Titanium with different surface modifications shows a wide range of chemical, physical properties, and surface topographies or morphologies, depending on how they are prepared and handled, [102][103][104] and it is not clear whether, in general, one surface modification is better than another. 101 It is important to stress that some publications on postextraction implants have a short-term follow-up period, of up to 1 year.…”

Tilted versus axially placed dental implants: A meta-analysis

“…65 The studies here included implants of different brands and surface treatments. Titanium with different surface modifications shows a wide range of chemical, physical properties, and surface topographies or morphologies, depending on how they are prepared and handled, [66][67][68] and it is not clear whether, in general, one surface modification is better than another. 65 Concerning the angulation of the implants, one should recall that in the interpretation of the results, the classification of tilted and axially placed implants was based on the assessment of the inclination in only the mesial-distal direction.…”

Periodontally compromised vs. periodontally healthy patients and dental implants: A systematic review and meta-analysis

“…The moderate micro-roughness of most modern implants did not seem coupled to more than 1-2% of periimplantitis when followed up for 10 years or more as indicated in a recent review of ten different long term clinical reports of Tioblast, SLA and TiUnite implants. 38 Titanium with different surface modifications shows a wide range of chemical, physical properties, and surface topographies or morphologies, depending on how they are prepared and handled, [39][40][41] and it is not clear whether, in general, one surface modification is better than another. 42 Another possible limitation of some studies is that implants were not tested for stability during some of the late follow-up visits since many of the prostheses could not be removed because they were permanently cemented.…”