Objective: To investigate the effect of F.nucleatum(Fn) and P. gingivalis(Pg) on soluble intercellular adhesion molecule-1(sICAM-1) in peri-implant sulcular fluid(PISF).Methods: PCR was used to detect microorganism samples from PISF. According to detection of Fn and Pg, 51 titanium implants in 32 partly edentulous patients were divided into 3 groups. Clinical parameters included PD, mPLI and sICAM-1. Periopaper strips were used to collect PISF and an ELISA technique was applied to measure the levels of sICAM-1. Results: PD was significantly greater in the patients with Pg and/or Fn than that in those without Pg or Fn (P

OBJECTIVEThis study aimed to evaluate the effects of the microarc oxidation surface on cell morphology and cytoskeleton.

METHODSPure titanium with a diameter of 15 mm and a thickness of 1 mm was divided into four groups: grooved surfaces (group G); sandblasted surfaces (group SB); grooved microarc oxidation surfaces (group GMAO); and sandblasted microarc oxidation surfaces (group SBMAO). Osteoblast cells were cultured in each group. The morphology and proliferation of the cells on the titanium surface were observed by scanning electron microscope (SEM). The cytoskeleton was evaluated by laser scanning confocal microscope (LSCM).

RESULTSThe osteoblasts were inoculated after 12 h; these osteoblasts then spread along the surface of the titanium plate. In GMAO and SBMAO groups, the osteoblasts converged in the hole. The actin fibers in each group were clearly visible. In particular, the actin fibers in GMAO and SBMAO groups were arranged in parallel and formed bundles that extended into the holes.

CONCLUSIONAfter microarc oxidation, the titanium surface significantly affected the morphology and cytoskeleton of osteoblasts.

Actins ; Cytoskeleton ; Humans ; Microscopy, Electron, Scanning ; Microtubules ; Osteoblasts ; Oxidation-Reduction ; Surface Properties ; Titanium