Comparison of experimental gingivitis with persistent gingivitis: differences in clinical parameters and cytokine concentrations
| Autor: | U. Weik, Renate Deinzer, Victoria Kolb-Bachofen, Armin Herforth |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Adult
Male medicine.medical_treatment Interleukin-1beta Dental Plaque Dentistry Oral hygiene Gingivitis Sex Factors Periodontal disease medicine Humans Gingival inflammation Interleukin 8 business.industry Interleukin-8 Gingival Crevicular Fluid Oral Hygiene Interleukin 1β Cytokine Periodontics Female medicine.symptom Periodontal Index business Epidemiologic Methods Chronic gingivitis |
| Zdroj: | Journal of periodontal research. 42(4) |
| ISSN: | 0022-3484 |
| Popis: | Background and Objective: Experimental gingivitis has been studied extensively as a well-controlled laboratory model of gingivitis. It is unclear, however, how experimental gingivitis compares with persistent plaque and gingivitis in more naturalistic settings. The present study compares both conditions in a randomized controlled design. Material and Methods: Twenty-six students suffering from plaque and gingivitis were randomly assigned to either a persistent gingivitis or an experimental gingivitis condition. Subjects with persistent gingivitis continued their habitual (i.e. insufficient) oral hygiene behaviour, resulting in persistence of plaque and gingivitis. Experimental gingivitis consisted of initial prophylaxis and subsequent total neglect of oral hygiene. Crevicular interleukin-1β and interleukin-8 and clinical data were assessed weekly. Results: After 4 wk, subjects with experimental gingivitis showed significantly more plaque accumulation (p = 0.005), higher interleukin-1β (p = 0.037), and lower interleukin-8 (p = 0.043) concentrations than subjects with persistent gingivitis. Whereas in experimental gingivitis we observed considerable fluctuations in clinical and immunological parameters over the 4-wk period, persistent gingivitis was characterized by little fluctuation, indicating that we were monitoring an inflammatory steady state. Conclusion: The data indicate that conditions observed after 4 wk of experimental gingivitis are not comparable with persistent gingival inflammation in a naturalistic setting. Results are discussed with respect to current studies, indicating that chronic inflammation may reflect a stage of down-regulated pro-inflammatory response. |
| Databáze: | OpenAIRE |
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