A Prospective Multicenter Clinical Trial Comparing One‐ and Two‐Stage Titanium Screw‐Shaped Fixtures with One‐Stage Plasma‐Sprayed Solid‐Screw Fixtures

Abstract

Cumulative survival rates for MS fixtures placed in one and two stages as well as one-stage TPS screws up to the 2- to 3-year follow-up examination were similar, indicating excellent clinical results. Radiographic measurements for changes in crestal bone loss were clinically insignificant for fixtures placed in one stage. For two-stage fixtures, maxillary changes were insignificant, whereas mandibular bone loss was statistically significant but clinically insignificant. Changes in crestal bone loss for TPS implants were statistically significant.

Enhanced Cell Integration to Titanium Alloy by Surface Treatment with Microarc Oxidation: A Pilot Study

“…Both the early fixation and long-term mechanical stability of the prosthesis can be improved by a higher surface roughness. However, too much surface roughness may cause an increase in peri- implant inflammation and in ionic leakage [5]. Therefore, the optimal average roughness of cementless stems is reportedly 5 to 7 lm [13].…”

Osseointegration: Hierarchical designing encompassing the macrometer, micrometer, and nanometer length scales

“…In preclinical investigations, such extremely rough surface topography of the TPS surface presented improved osseointegration compared to the turned surfaces [56][57][58]. Unfortunately, the clinical trials seemed to present little or rather negative outcomes with progressive marginal bone loss [59][60][61][62][63][64][65][66], resulting in TPS-roughened implant surfaces falling from favor among implant manufacturers.…”

In vitro Comparison between Two Different Implant Titanium Surfaces in Osseointegration Process

“…However, a major risk with high surface roughness may be an increase in peri-implantitis as well as an increase in ionic leakage. 15 The main clinical indication for using an implant with a rough surface is the poor quality or volume of the host bone. 16 In these unfavorable clinical situations, early and high bone-to-implant contact would be beneficial for allowing high levels of loading.…”