Additionally, sTREM-1 concentrations either normalized by GCF volume (mean ± SEM, healthy group: 144 ± 54.00 pg/μL, gingivitis group: 85.05 ± 15.24 pg/μL, and CP group: 106.3 ± 24.40 pg/μL) or by total protein content did not significantly differ among the groups. This evidence concerns the gene CP and gingivitis.