Abstract
Objectives
To evaluate the correlation between dental plaque formation and gingival health in subjects performing high oral hygiene standards over short or extended intervals.
Materials and methods
Fifty-two non-dental students volunteered for this study. The subjects, trained to perform high oral hygiene standards, were randomized to perform oral hygiene at 12-, 24-, 48-, or 72-h interval over 30 days. The plaque index (PlI) and the gingival index (GI) were evaluated at baseline, 15, and 30 days. For the statistical analysis, oral hygiene intervals were collapsed into daily (12 and 24 h; G12/24) and extended (48 and 72 h; G48/72) intervals. Summary statistics (mean ± SD) and Spearman correlations between the PlI and the GI at baseline, 15, and 30 days were estimated.
Results
At baseline, correlation coefficients between PlI and GI were positive for both groups (r = 0.29 and r = 0.25). At day 15 and 30, correlation was maintained with similar baseline values for the G48/72 group. GI levels did not increase despite an increase in PlI for the G12/24 group, and the correlation was lower than that observed at baseline (r = 0.13 vs. r = 0.29).
Conclusions
In subjects with high oral hygiene standards, the oral hygiene frequency governs the correlation between dental plaque formation and gingival health. Subjects performing high oral hygiene standards at daily intervals will maintain gingival health in difference to subjects using extended hygiene intervals.
Clinical relevance
Subjects performing high oral hygiene standards at daily intervals will maintain gingival health in difference to subjects using extended hygiene intervals.
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Acknowledgments
The authors would like to thank Alessandra Pascotini Grellmann, MSc, and Danilo Antônio Milbrat Dutra, MSc, for collaborating in data collection.
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The authors declare they have no conflict of interest.
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This study was performed in accordance with the Declaration of Helsinki and was approved by the Ethics Committee in Research of Federal University of Santa Maria. (CAAE: 0186.0.243.00-10).
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After an explanation of the purpose of study and any questions answered by one of the investigators, subjects agreeing to participate in this study signed an informed consent.
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De David, S.C., Mário, T.G., De Freitas, G.C. et al. Correlation between plaque control and gingival health using short and extended oral hygiene intervals. Clin Oral Invest 22, 2593–2597 (2018). https://doi.org/10.1007/s00784-018-2358-5
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DOI: https://doi.org/10.1007/s00784-018-2358-5