Journal
JOURNAL OF PERIODONTOLOGY
Volume 79, Issue 11, Pages 2136-2142Publisher
WILEY
DOI: 10.1902/jop.2008.080082
Keywords
Antioxidant; oxidative stress; periodontitis; plasma
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Funding
- Ministry of Education, Culture, Sports, Science and Technology, Tokyo, Japan [20791641]
- Grants-in-Aid for Scientific Research [20791641] Funding Source: KAKEN
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Background: The relationship between systemic antioxidative status and periodontal condition has been investigated in epidemiologic studies. However, little literature is available with regard to the correlation between systemic reactive oxygen species and periodontal condition. The purpose of this cross-sectional study was to investigate the relationship between plasma reactive oxygen metabolites (ROM) and periodontal condition in patients in the maintenance phase of periodontal treatment. Methods: Eighty-one subjects (mean age: 57.4 years) who had entered a periodontal maintenance program were examined for probing depth (PD) and clinical attachment level (CAL). Plasma levels of ROM and biologic antioxidant potential (BAP) were determined with a free radical electric evaluator. Results: The plasma level of ROM was positively correlated to mean CAL (r = 0.281; P = 0.011) and percentage of teeth with CAL A mm (r = 0.236; P = 0.034), but not mean PD (r = 0.196; P = 0.080). Logistic regression analysis showed that subjects with ROM levels >400 Carratelli units (CARR U) had significantly higher mean CAL compared to subjects with ROM >400 CARR U after adjusting for age, gender, and the number of teeth present (P = 0.011). However, the plasma level of BAP was not significantly correlated with the periodontal parameters. Conclusions: A positive association was found between plasma oxidative status and CAL in patients in the maintenance phase of periodontal therapy. A systemic increase in oxidative stress may influence the rate of progression of periodontal disease. J Periodontol 2008; 79:2136-2142.
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