Effect of Periodontal Surgery on Osteoprotegerin Levels in Gingival Crevicular Fluid, Saliva, and Gingival Tissues of Chronic Periodontitis Patients

Figure 3

Photomicrograph of a section from gingiva of control group showing strong positive OPG immunostain within both epithelium and connective tissues in (a), photomicrograph of a section from gingiva of CP group at baseline showing weak positive OPG immunostain within both epithelium and connective tissues in (b), and photomicrograph of a section from gingiva of CP group showing moderate OPG immunostain within both epithelium and connective tissues at 3 months in (c) and at 6 months in (d) (anti-OPG antibody ×200).

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