TY - BOOK AU - Azza Hassan Abdou Seleman AU - Mahmoud Elrefaie , AU - Naglaa Elwakeel , TI - Tumour necrosis factor alpha (TNFÜ) as a biomarker for evaluating the effect of treatment in aggressive and advanced chronic periodontitis / PY - 2011/// CY - Cairo : PB - Azza Hassan Abdou Seleman , KW - Biomarker KW - Periodontal disease KW - Tumour necrosis factor N1 - Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Periodontology; Issued also as CD N2 - The present study was designed to investigate the effect of scaling and root planning (SRP) on the expression of TNF-Ü in gingival crevicular fluid of patients with aggressive periodontitis (AgP) and chronic periodontitis (CP) compared to controls. 45 patients were selected and grouped into 3 groups, the first group included 20 patients with AgP, the second group included 20 patients with CP, and third group with 5 periodontally healthy subjects C ER -