歯肉縁下の炎症が歯肉縁上プラーク形成に及ぼす影響

概要

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Dental plaque that accumulates on tooth surfaces is the factor in periodontitis. However it has been reported that the anti-plaque effects of mouthrinses were significantly smaller at sites with inflamed than with healthy gingiva. The purpose of the present study was to investigate the effect of subgingival inflammation on supragingival plaque formation. The subjects were 5 patients with advanced and generalized periodontitis. All patients were first subjected to a baseline examination comprising an assessment of oral hygiene, probing pocket depths (PPD), probing attachment levels (PALs), breeding on probing (BoP), degree of furcation involvements and tooth mobility. Following a baseline examination patients were subjected to assessments of plaque, oral hygiene instruction and professional tooth cleaning at every appointment. After checking to see if proper self-performed plaque control was performed properly, supragingival calculus was removed. All sites were re-examined. Following the re-examination all sites with BoP+ and PPD>or=4mm were scaled and root planed (SRP). Alteration of the mean plaque score on sites with BoP- and PPD<4mm was 1.1±4.3% while on sites with BoP+ and PPD>or=4mm was -23.2±29.8% (mean±SD). There was a significant difference between them (p<0.05). The results suggested that subgingival inflammation may significantly increase supragingival plaque.
2004-12-30