Prognostic factors in the treatment of generalized aggressive periodontitis: I. Clinical features and initial outcome.

J Clin Periodontol 2006 Sep 20;33(9):663-70. Epub 2006 Jul 20.

Collaborative Group in Risk Factors for Periodontal Disease, Institute of Dentistry, Queen Mary's School of Medicine, London, UK.

Aims: The aims of this study were to investigate prognostic factors for initial response to non-surgical periodontal treatment for generalized aggressive periodontitis.

Methods: Seventy-nine patients with generalized aggressive periodontitis were included in this prospective follow-up intervention study. Patients' clinical and demographic parameters were collected at baseline and 10 weeks following a standard course of treatment (four visits of non-surgical root surface debridement together with OHI as required). The relationship between clinical variables and treatment outcome were analysed at site-specific level by chi(2) analysis and for patient-specific variables by logistic regression.

Results: In general, there was a good response to the treatment provided. In deep sites the mean pocket depth reduction was 2.11+/-2.01 mm. Site-specific analysis showed that the presence of plaque had a small but significant predictive effect on outcome (odds ratio 1.4). Sites on teeth with grade II/III mobility showed a significantly reduced response to treatment. Twenty-five patients were classified as "non-responders". Current smoking was strongly associated with non-responding patients (odds ratio 3.8) in a logistic regression model; plaque, baseline bleeding and initial pocket depth were not significantly associated with treatment outcomes.

Conclusions: Overall, the results emphasize the importance of smoking as a negative prognostic factor, and suggest that treatment outcomes may be determined by a wide range of different determinants requiring further study.

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http://dx.doi.org/10.1111/j.1600-051X.2006.00966.xDOI Listing
September 2006
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