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Clinical Trial Summary

Periodontitis patients, 40 cigarette smokers and 40 non-smokers (defined by cotinine measures in serum), were recruited to this double arm prospective cohort study. Data were collected 3 months following non-surgical and surgical periodontal treatment, and following 12 months with supportive periodontal therapy. Data collected were clinical attachment level, probing depth, bleeding on probing,oral bacteria, serum, blood (PAXgeneBlood), and gingival crevicular fluid.

Clinical Trial Description

The overall aim of this work was to study clinical outcomes of active and supportive periodontal therapy in smokers and non-smokers with chronic periodontitis at patient, tooth, and site level. Moreover, to compare the periopathogenic microflora and inflammatory markers in gingival crevicular fluid and in blood in smokers and non-smokers following therapy. Eighty patients, 40 smokers and 40 non-smokers, with moderate to severe chronic periodontitis were included in this prospective cohort study and treated non-surgically and surgically, and then followed-up in a supportive periodontal therapy program for 12 months. Smoking status was validated measuring serum cotinine levels at pre-treatment and 12 months following supportive periodontal therapy. Clinical measurements included full mouth recordings of clinical attachment level, probing depth, bleeding on probing, and plaque index at pre-treatment and following active and supportive periodontal therapy. At the same timepoints, subgingival plaque samples of 20 subgingival periopathogenic bacterial species were analysed using checkerboard DNA-DNA hybridization. Blood samples (PAXgeneBlood), serum, gingval crevicular fluid were also collected at the three timepoints. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT05120206
Study type Interventional
Source University of Bergen
Status Completed
Phase N/A
Start date April 1, 2012
Completion date March 1, 2015

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