Evaluation of Salivary Asprosin, IL-39,IL-40 and IL-1β Levels in Diabetic Patients with Periodontitis

The study is planned to be conducted with 176 individuals with and without periodontal disease between the ages of 18-80 who come to the Department of Periodontics of the Faculty of Dentistry of Necmettin Erbakan University for treatment. Those who sign the 'informed consent form' will be included in the study.

In the periodontal examination of each patient who applies to the periodontology clinic, routine radiographic and clinical evaluations are performed, and routine periodontal status records (periodontal pocket depths of the teeth, attachment losses, mobility levels, furcation defect degrees, bleeding index on probing, gingival index, plaque index, amount of keratinized gingiva, gingival recessions, body/mass index) are taken and archived before the start of the patients' treatments and after each planned treatment. In addition, the sociodemographic data and brushing habits of each patient who will participate in the study are recorded. Saliva samples will also be collected from patients prior to treatment. Individuals will be divided into groups according to their periodontal disease status:

• 44 periodontally healthy, systemically healthy individuals
• 44 periodontally healthy, type 2 diabetic individuals
• 44 periodontitis, systemically healthy individuals
• 44 periodontitis, type 2 diabetic individuals

A calibrated expert clinician will determine periodontal status according to the criteria of the 2017 World Workshop on Classification of Periodontal and Peri-Implant Diseases and Conditions based on radiographic and clinical examination. Patients will need to meet the criteria for Stage II and III, generalized, periodontitis to be included in the periodontitis groups.

Saliva samples will be collected before periodontal measurements are taken to prevent saliva from bleeding during probing. Participants will be asked not to brush their teeth at least one hour before the sample collection and to avoid any food, sugary gum, cosmetic products such as lipstick, and any medication that will not affect the salivary hormone measurements. A total of 5 2 ml samples, one for each marker, will be collected from each patient between 9:00 and 10:00 in the morning. The samples will be collected in plastic tubes with a glass funnel within five minutes after each participant rinses their mouth with water. The tubes will then be capped and the samples will be centrifuged at 1000 rpm for 10 minutes to remove cellular elements and plaque. The supernatant liquid will be pipetted without touching the sediment formed at the bottom of the tubes, placed in polypropylene Eppendorf tubes, and stored at -20°C until analysis.