Only the study team can determine whether someone qualifies for participation.
Inclusion criteria
1-) 30-49 years of age 2-) had a minimum of 20 natural teeth, excluding third molars 3) glycosylated hemoglobi levels <6% 4) fasting plasma glucose levels <100 mg/dl. 5-) Criteria for the periodontal healthy group were GI = 0, PPD≤ 3 mm, and no signs of attachment and bone loss by clinical and radiographic examination.
6-) Criteria for the chronic periodontitis group were clinical signs of inflammation (red color and swelling of the gingival margin), GI ≥ 2, PPD and CAL ≥ 5 mm, and bone loss affecting >30% of the existing teeth on clinical and radiographic examination.
7-) Criteria for obese groups were 30≤ BMI <40 kg/m2, and concomitant WHR ≥0.85 for females and WHR ≥0.90 for males.
8-) Criteria for normal-weight groups were 20≤ BMI <25 kg/m2, and WHR below that determined for obesity.
Exclusion criteria
- Aggressive periodontitis,
- Periapical pathologies
- Excessive forces including mechanical forces from orthodontics and occlusion
- Systemic diseases (e.g., diabetes mellitus; cancer; human immunodeficiency virus; or disorders that could affect adipokines levels and the periodontal conditions)
- Chronic high-dose steroid therapy, radiation or immunosuppressive therapy
- Pregnancy, lactation,
- Smoking within the past five years, or allergy or sensitivity to any drug.
- Had no history of periodontal therapy or drug therapy (e.g., anti-inflammatories, antibiotics, or any other pharmacological treatment) for at least six months.