Manual toothbrushing techniques for plaque removal and the prevention of gingivitis—A systematic review with network meta-analysis

Renate Deinzer, Ulrike Weik, Zdenka Eidenhardt, Daniel Leufkens and Sonja Sälzer

PLOS ONE, 2024, vol. 19, issue 7, 1-33

Abstract: Background: The meaning of the toothbrushing technique for the effectivity of toothbrushing in terms of plaque removal and parameters of gingivitis is unknown. This systematic review and network meta-analysis (NMA) aimed to synthesize evidence from randomized controlled trials (RCTs). Methods: We searched MEDLINE (PubMed), the Cochrane Central Register of Controlled Trials, and the Web of Science for RCTs that compared any self-applied manual toothbrushing technique to any other technique or control and assessed plaque after toothbrushing and gingivitis. Where intervention effects were recorded repeatedly, the last post-intervention assessment was treated as the primary outcome date (POD), and the assessment closest to the intervention as the secondary outcome date (SOD). Age restrictions were not imposed. Participants with fixed orthodontic appliances were excluded. The evidence was evaluated using the Confidence in Network Meta-Analyses (CINeMA) approach, which is based on the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. Results: Thirteen publications, including 15 studies, were identified. Ten studies assessing the Fones, Bass, and Scrub techniques provided data eligible for the NMA. The confidence rating of the evidence varied from very low to high in the case of plaque, and from very low to low in the case of gingivitis. Regarding PODs, Fones probably reduces plaque slightly compared with no training; the evidence is very uncertain that Fones may have little to no effect on gingivitis. Bass may result in little to no difference in plaque; the evidence that Bass may result in a slight increase in gingivitis is very uncertain. The evidence is very uncertain that Scrub may result in little to no difference in plaque at the SOD (no POD-data available) and that it may result in a slight increase in gingivitis. Conclusion: There is limited evidence regarding the effects of toothbrushing techniques on plaque after brushing or gingivitis.

Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0306302

DOI: 10.1371/journal.pone.0306302

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