903 Visible Bleeding upon Brushing and Clinical Gingivitis Severity

Friday, March 23, 2012: 2 p.m. - 3:15 p.m.
Presentation Type: Poster Session
I. MAGNUSSON1, J. DOUBERLY1, B. HALES1, M.L. BARKER2, and R. GERLACH2, 1College of Dentistry, University of Florida, Gainesville, FL, 2Health Care Research Center, Procter & Gamble Company, Mason, OH
Objectives: This pilot study was conducted to evaluate relationships between visible bleeding upon brushing (subject and hygienist) and clinical gingivitis severity. 

Methods: Informed consent was obtained from generally healthy adults with gingival bleeding (10+ sites).  Enrolled subjects brushed thoroughly under supervision using a regular anticavity dentifrice and soft manual brush.  Before rinsing, subjects expectorated into a white cup, and the presence/absence of visible bleeding in expectorate was assessed separately by the subject and a hygienist.  After self and hygienist bleeding assessment, an experienced clinical examiner measured whole mouth gingivitis using a standard index (Loe-Silness GI), bleeding sites were derived from GI site scores of 2+, and logistic regression modeling was used to predict the likelihood of bleeding perception by clinical bleeding severity. 

Results: 35 subjects (mean age of 37 years, 46% female) participated in the survey, of which, 34% identified visible bleeding in expectorate.  There was 100% in agreement between self and hygienist scoring of evident bleeding.  The population exhibited considerable variation in clinical bleeding, ranging from 13-80 sites, and on average, bleeding was detected at 24.3% of sites (SD=8.7).  Subjects reporting visible bleeding had a higher proportion of bleeding sites (29.5% vs. 21.6%), differing significantly (p=0.009) from those who did not report bleeding.  In the regression model, every 10% increase in proportion of clinical bleeding sites significantly (p=0.02) increased the odds ratio of visible bleeding by 3.52. 

Conclusions: Individuals with visible bleeding after a single brushing had a significant 37% increase in the proportion of bleeding sites measured on clinical examination compared those without evident bleeding.      

This abstract is based on research that was funded entirely or partially by an outside source: Sponsored by Procter & Gamble

Keywords: Blood, Diagnosis, Epidemiology, Gingivitis and Oral hygiene
Presenting author's disclosure statement: Research sponsored by Procter & Gamble
See more of: Oral Hygiene Care
See more of: Oral Health Research