Postoperative bleeding tendency as a risk factor inActinobacillus actinomycetemcomitans-associated periodontitis

Autor: D. E. Lange, H.-P. Müller, Achim Heinecke
Rok vydání: 1993
Předmět:
Zdroj: Journal of Periodontal Research. 28:437-443
ISSN: 0022-3484
Popis: Frequent bleeding on probing (BOP) has been considered a risk factor for recurrence of periodontitis. In the present study, 29 patients with Actinobacillus actinomycetemcomitans-associated periodontitis were enrolled in a carefully performed recall system. At 6 sites per tooth, periodontal probing depth (PPD), gingival index (GI), plaque index (PlI) and BOP was assessed 6 weeks, 6 months, 1 and 2 years after comprehensive therapy. Professional toothcleaning and subgingival scaling at sites with PPD > or = 5 mm and BOP was carried out every 2nd or 3rd month. Subgingival samples from 2 sites, a pooled subgingival sample, cheek mucosa, saliva and tongue samples were selectively cultivated for A. actinomycetemcomitans after 2 years. Following active therapy, 8% sites had a PPD of > or = 4 mm, whereas 21% sites bled on probing. After 2 years, respective figures were 12 and 27%. During maintenance, frequent BOP (> or = 3 times at 4 visits) had a predictive value of 0.133 to indicate an increase in PPD of > or = 2 mm and a negative predictive value of 0.947. The predictive value of no bleeding to indicate a stable site was 0.972, the negative predictive value 0.078. There was evidence for heterogeneity of associations between increase in PPD of > or = 2 mm and > or = 3 times BOP among patients (chi 2(28) = 41.45, p < 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)
Databáze: OpenAIRE
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