Evaluation of the static frictional coefficients of Co-Cr and gold alloys for cone crown telescope denture retainer applications.

The static frictional coefficients (SFC) of a Co-Cr and a gold alloys were evaluated for the application of a cone crown telescope system in removable prosthesis. The SFCs of the Co-Cr alloy were lower than those of the gold alloy. The SFC of the gold alloy decreased by annealing at 85°C in air and was restored by re-polishing, although that of the Co-Cr alloy was stable irrespective of the annealing.

Inhibition of peptic ulcer relapse by ranitidine and ecabet independently of eradication of Helicobacter pylori: a prospective, controlled study versus ranitidine.

Background/aims: The recent increase in resistant strains of Helicobacter pylori has become a serious problem. Ecabet is a novel anti-ulcer agent that acts directly on the gastric mucosa, has bactericidal activity, and inhibits adhesion of Helicobacter pylori to the gastric mucosa. These actions result from inhibition of urease and ATPase in Helicobacter pylori, a mechanism distinct from that of antibiotics.

Effect of anti-Helicobacter pylori IgG antibody titer following eradication of Helicobacter pylori infection.

Background/aims: We measured the levels of IgG antibody in patients treated for H. pylori infection using four commercially available ELISA (enzyme linked immunosorbent assay) kits.

Methodology: A total of 37 patients with peptic ulcers (21 patients had gastric ulcers and 16 patients had duodenal ulcers) were treated and monitored.