Journal
CLINICAL ORAL INVESTIGATIONS
Volume 26, Issue 8, Pages 5273-5280Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00784-022-04495-w
Keywords
Clinical trial; Gingivitis; Dental floss; Toothbrush; Oral hygiene; Dental plaque
Categories
Funding
- Post-graduate Program in Oral Science
- Brazilian fostering agency Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES [Coordination for the Advancement of Higher Education Personnel] [001]
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This randomized controlled clinical trial found that dental floss as a supplement to toothbrushing can improve gingival health in adults, with the group using toothbrushing supplemented by dental floss showing better reduction in gingival inflammation compared to the group using toothbrushing alone. Additionally, the reduction in gingival inflammation was more significant in the anterior dentition compared to the posterior dentition.
Objectives This randomized controlled clinical trial evaluated the efficacy of dental floss as a supplement to toothbrushing in support of gingival health in adults. Materials and methods Seventy-five systemically healthy subjects, non-smokers, without loss of interproximal periodontal attachment and with more than 15% of the interproximal sites presenting with gingival bleeding were randomized into two groups either performing toothbrushing supplemented by dental floss (TB + DF) or toothbrushing (TB) alone. Over a 60-day period, participating subjects weekly received oral hygiene instruction and supervised personal and professional plaque removal by applying the devices assigned for the group. Study subjects were instructed to perform toothbrushing twice daily (group TB +DF and TB) and use dental floss once daily (group TB +DF). Gingival Index (GI) and Plaque Index (PH) were evaluated at baseline, and at 30 and 60 days. Linear mixed models were used to compare PlI and GI intra- and intergroup means. Results Interproximal gingival inflammation (GI = 2 and mean GI) was significantly reduced in both groups by day 30, reduction in inflammation being significantly greater in the TB +DF compared with the TB alone group. No further significant alterations were observed by day 60. Moreover, reduction in gingival inflammation (GI= 2) was greater in the anterior compared with the posterior dentition. Conclusions Interproximal gingival inflammation may be significantly reduced by toothbrushing alone, the effect being significantly enhanced when toothbrushing is combined with dental floss.
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