Adult 1 Article 1 Biomarkers 1 Chronic Periodontitis 1 Female 1 Gingival Crevicular Fluid 1 Humans 1 MIRN1226 microRNA, human 1 Male 1 MicroRNAs 1 Middle Aged 1 Periodontal diseases 1 Pilot Projects 1 RNA extraction 1 Reverse transcriptase polymerase chain reaction 1 Small interfering RNA 1 adult 1 biological marker 1 bone metabolism 1 chemistry 1 chronic periodontitis 1 controlled study 1 female 1 gene expression 1 gene sequence 1 gingivitis 1 human 1 male 1 miR 1226 microRNA 1