MMP-8, TRAP-5, and OPG levels in GCF diagnostic potential to discriminate between healthy patients’, mild and severe periodontitis sites 

Early pregnancy levels of gingival crevicular fluid matrix metalloproteinases-8 and −9 are associated with the severity of periodontitis and the development of gestational diabetes mellitus 

Niveles de piridinolina (ICTP) en el fluido gingival crevicular (FGC) en la periodontitis crónica 

Longitudinal analysis of metalloproteinases, tissue inhibitors of metalloproteinases and clinical parameters in gingival crevicular fluid from periodontitis-affected patients 

Biomarkers in gingival crevicular fluid: Review of literature