Journal of Indian Society of Periodontology
Journal of Indian Society of Periodontology
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Year : 2010  |  Volume : 14  |  Issue : 4  |  Page : 213-216

Efficacy of a chairside diagnostic test kit for estimation of C-reactive protein levels in periodontal disease

1 Department of Periodontics, S.D.M. College of Dental Sciences and Hospital, Dharwad, Karnataka, India
2 Department of Periodontics,Hassanamba Dental College, Hassan, Karnataka, India

Correspondence Address:
Girish Nagarale
Department of Periodontics, S.D.M. College of Dental Sciences and Hospital, Dharwad, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-124X.76919

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Background: C-reactive protein [CRP] levels increase to hundreds of mg/mL within hours following infection. Studies have shown that serum CRP levels were elevated in periodontal disease. However, in all the previous studies, CRP levels were measured by using high-sensitivity CRP assay kits with minimal detection limits of 0.1 to 3 mg/L, which was much below the normal value of 10 mg/L. These high-sensitivity CRP assays need a proper laboratory setup, and these methods cannot be used as a routine chair-side test in the dental office. Aim: The purpose of this study was to investigate the serum CRP levels in subjects with periodontal disease by using a rapid chair-side diagnostic test kit with a lower detection limit of 6 mg/L and to compare the CRP levels before and after periodontal therapy. Materials and Methods: A total of 45 systemically healthy subjects were selected for the study. Subjects were divided into three groups: group A: healthy controls, group B: gingivitis, group C: periodontitis. Serum levels of CRP were determined by using a latex slide agglutination method with commercially available kit with lower detection limit of 6 mg/L. Results: CRP was negative in all the 15 subjects in groups A and B at baseline, 7th and 30th day. CRP was positive only in 2 subjects in Group C at baseline and 7th day. Conclusion: Estimation of serum CRP by using a rapid chair-side diagnostic test kit is not of any significance in subjects with periodontitis.

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