Plaque index, gingival index, bleeding on probing index, probing pocket depth and clinical attachment level were measured at 6 sites (buccomesial, midbuccal, buccodistal, lingual/palatal mesial, midlingual/palatal, lingual/palatal distal) of each tooth to evaluate the periodontal status of the patients. On the day of examination, panoramic radiographs were taken from all patients to determine alveolar bone loss. HbA1c values were measured. Gingival crevicular fluid is collected from the patients. Gingival crevicular fluid samples were collected from 5 randomly selected teeth with GI=0, PI=0 and PPD ≤3. Then, each paper strip from each tooth was individually placed in sterile 0.5 ml eppendorf tubes. Eppendorf tubes were stored at -80°C. Oral hygiene education was given to each patient. Modified Bass technique was explained as a brushing technique. Interdental cleaning was explained.

Plaque index, gingival index, bleeding on probing index, probing pocket depth and clinical attachment levels were measured from 6 sites of each tooth to evaluate the periodontal status of the patients. Panoramic radiographs were taken from all patients. Vertical/horizontal bone loss on the radiographs was evaluated to determine the stage and grade of periodontitis. HbA1c levels are determined. Gingival crevicular fluid samples were collected from the 5 periodontal pockets with the deepest PPD before and 3 months after treatment. Samples were stored at -80°C. Non-surgical periodontal treatments were started under local anesthesia. Oral hygiene education was given after treatment. Modified Bass technique was explained as a brushing technique. Interdental cleaning was explained. The patient was told not to use any chemical agent for plaque removal. 3 months after the treatment gingival crevicular fluid samples are collected and clinical examination parameters were measured again.

Plaque index, gingival index, bleeding on probing index, probing pocket depth and clinical attachment level were measured at 6 sites (buccomesial, midbuccal, buccodistal, lingual/palatal mesial, midlingual/palatal, lingual/palatal distal) of each tooth to evaluate the periodontal status of the patients. On the day of examination, panoramic radiographs were taken from all patients to determine alveolar bone loss. HbA1c values were measured. Gingival crevicular fluid is collected from the patients. Gingival crevicular fluid samples were collected from 5 randomly selected teeth with GI=0, PI=0 and PPD ≤3. Then, each paper strip from each tooth was individually placed in sterile 0.5 ml eppendorf tubes. Eppendorf tubes were stored at -80°C. Oral hygiene education was given to each patient. Modified Bass technique was explained as a brushing technique. Interdental cleaning was explained.

Plaque index, gingival index, bleeding on probing index, probing pocket depth and clinical attachment levels were measured from 6 sites of each tooth to evaluate the periodontal status of the patients. Panoramic radiographs were taken from all patients. Vertical/horizontal bone loss on the radiographs was evaluated to determine the stage and grade of periodontitis. HbA1c levels are determined. Gingival crevicular fluid samples were collected from the 5 periodontal pockets with the deepest PPD before and 3 months after treatment. Samples were stored at -80°C. Non-surgical periodontal treatments were started under local anesthesia. Oral hygiene education was given after treatment. Modified Bass technique was explained as a brushing technique. Interdental cleaning was explained. The patient was told not to use any chemical agent for plaque removal. 3 months after the treatment gingival crevicular fluid samples are collected and clinical examination parameters were measured again.

After clinical periodontal parameters were recorded and GCF samples were obtained, non-surgical periodontal treatment was started under local anesthesia. All periodontal treatments were performed by a single investigator. Local infiltrative anesthesia was applied to the buccal and palatal/lingual areas of the maxilla and mandible of the patients. After anesthesia was achieved, scaler and ultrasonic tips of various thicknesses were used together to remove supragingival and subgingival hard attachments. Root surface smoothing was performed with region-specific periodontal curettes. The roughness of the surfaces was controlled using a periodontal probe. Polishing was performed. Oral hygiene education was given to each patient after treatment. Modified Bass technique was explained as a brushing technique. Interdental cleaning is explained. The patient was told not to use any chemical agent for plaque removal.

Blood samples were taken from the patients and HbA1c concentration was measured in serum.

Visfatin concentrations in GCF were increased in all periodontitis patients. In periodontal healthy patients with Type 2 diabetes visfatin concentrations in GCF were increased. Non-surgical periodontal treatment decreased the concentration of visfatin in GCF.

Fetuin-A concentrations in GCF were decreased in all periodontitis patients. In periodontal healthy patients with Type 2 diabetes fetuin-A concentrations in GCF were increased. Non-surgical periodontal treatment increased the concentration of fetuin-A in GCF.

In systemic healthy individuals, periodontitis decreased the concentration of sirtuin 1 in GCF. Type 2 diabetes increased sirtuin 1 concentration in GCF. In controlled type 2 diabetes patients with periodontitis sirtuin 1 concentrations in GCF were increased. In uncontrolled type 2 diabetes patients with periodontitis sirtuin 1 concentrations in GCF were decreased. Non-surgical periodontal treatment increased the concentration of sirtuin 1 in GCF.