Journal
MATERIALS
Volume 15, Issue 22, Pages -Publisher
MDPI
DOI: 10.3390/ma15227889
Keywords
Er:YAG; dental; peri-implantitis; roughness; titanium-zirconium alloy
Categories
Funding
- DFG
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The aim of this experimental study was to compare the surface alterations of titanium and titanium-zirconium alloy implants after Er:YAG laser irradiation, particularly in terms of thread pitch topography. The results showed that Roxolid (R) alloy could maintain its surface topography at lower energy levels, but higher energy levels were required to smoothen the surface.
The aim of the current experimental study was to comparatively assess the surface alterations in titanium and titanium-zirconium alloy implants in terms of thread pitch topography after irradiation with an Er:YAG laser, which is recommended in the literature for its sterilizing effect in the treatment of contaminated implant surfaces. Roxolid (R) and SLA (R) (Sand-blasted, Large-grit, Acid-etched) implants from Straumann (R) company with the same macro topography were investigated. The surface treatment was carried out using a wavelength of 2940 nm, 60 s irradiation time, a frequency of 10 Hz, and energies between 120 mJ and 250 mJ. The alterations were quantitatively analyzed by conducting roughness analysis via white light interferometry and qualitatively using SEM images. Roxolid (R) could particularly maintain its surface topography at a level of 160 mJ. At an energy level of 250 mJ, the surface properties of the pitch could be significantly altered for the first time. Compared to the Standard Plus dental implants studied, no distinct removal of the material from the surface was detected. The alloy properties of Roxolid (R) confirm the manufacturer's statement in terms of stability and could offer advantages in peri-implantitis management if decontamination has been selected. However, as a part of a respective strategy, smoothening of a Roxolid (R) implant surface requires a significantly higher energy level compared to SLA-Standard dental implants.
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