Table 1.

Demographic characteristics, periodontal parameters, proportion of occurrence of Tannerella forsythia, and IgG1/IgG2 antibody titers against whole-cell T. forsythia of the patients with and without periodontitis.

Values are presented as mean±standard deviation unless otherwise indicated.

NS: not statistically significant, USD: United States Dollars, PD: probing depth, CAL: clinical attachment level, BOP: bleeding on probing, IgG: immunoglobulin G, EU: enzyme-linked immunosorbent assay units.