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

AbstractBACKGROUND:
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.
AuthorsGirish Nagarale, S Ravindra, Srinath Thakur, Swati Setty
JournalJournal of Indian Society of Periodontology (J Indian Soc Periodontol) Vol. 14 Issue 4 Pg. 213-6 (Oct 2010) ISSN: 0975-1580 [Electronic] India
PMID21731244 (Publication Type: Journal Article)

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