Toothbrushing Behaviour And Periodontal Pocketing: An 11-Year Longitudinal Study
JOURNAL OF CLINICAL PERIODONTOLOGY(2018)
Abstract
AimTo explore the association between toothbrushing behaviour and change in periodontal pocketing among adults.MethodsWe pooled data from 1,025 adults, aged 30-89years, who participated in two national surveys in Finland (Health 2000 and Health 2011, BRIF8901) and reported their toothbrushing frequency. A cumulative measure of regular toothbrushing was created by counting the number of times participants reported brushing twice or more daily across the two surveys (ranging from 0 to 2). The association between toothbrushing behaviour and the number of teeth with periodontal pocket depth (PPD) 4mm over 11years was assessed in linear regression models adjusting for confounders.ResultsThere was a clear dose-response relationship between toothbrushing frequency (either at baseline or follow-up) and change in number of teeth with PPD4mm. There was also evidence of a cumulative effect of regular toothbrushing on change in number of teeth with PPD4mm. Participants who reported brushing twice or more a day in both surveys developed 1.99 (95% CI: 1.02-2.95) fewer teeth with PPD4mm than those who did not report this behaviour in any survey.ConclusionThis 11-year prospective study showed that toothbrushing behaviour was associated with smaller increments in the number of teeth with periodontal pocketing.
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Key words
adults, cohort studies, oral hygiene, periodontal diseases, periodontitis, toothbrushing
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