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  • Title: A Randomized, Parallel Design Study to Evaluate the Effects of Different Oral Cleaning Modalities on Gingivitis and Plaque After a 6-Week Period of Home Use.
    Author: Li J, Mirza F, Wang PW, Argosino K, Milleman K, Milleman J, Ward M.
    Journal: Compend Contin Educ Dent; 2024 Mar; 45(Suppl 1):6-9. PubMed ID: 38781410.
    Abstract:
    The study objective was to evaluate the effect of different interdental oral cleaning modalities on gingivitis and plaque following a 6-week period of home use. This was a randomized, parallel, examiner-blinded study. Study subjects were routine manual toothbrush (MTB) users with moderate to severe gingivitis, aged 18 to 65 years. Subjects were required to have a gingival bleeding score of ≥1 on at least 50 gingival sites per the Gingival Bleeding Index (GBI) and to have a minimum average plaque score of ≥0.6 per the Rustogi Modified Navy Plaque Index (RMNPI) following a 3- to 6-hour plaque accumulation period. Subjects were randomly assigned to one of four groups based on the oral care cleaning modality: (1) NON group: MTB alone, (2) FLS group: MTB plus string floss, (3) MPF group: MTB plus a Philips® Sonicare® Power Flosser with the Quad Stream nozzle, or (4) PPF group: Philips Sonicare power toothbrush plus the power flosser. Safety and efficacy measures (Modified Gingival Index [MGI], GBI, and RMNPI) were assessed at baseline, 2 weeks, and 6 weeks. The primary efficacy endpoint was the reduction in gingival inflammation from baseline to week 6 as measured by the MGI. A total of 260 subjects were randomized and 256 subjects completed the study. The adjusted mean percent reduction in gingival inflammation from baseline to week 6 was 14.90% for the NON group, 13.16% for the FLS group, 33.51% for the MPF group, and 49.30% for the PPF group. Pairwise comparisons indicated that both the PPF and MPF groups were statistically significantly different from both the NON and FLS groups. In conclusion, use of either the Philips Sonicare power toothbrush with the Philips Sonicare Power Flosser or an MTB with the Philips Sonicare Power Flosser was statistically superior to an MTB alone and an MTB used with string floss in reducing gingival inflammation following 6 weeks of home use.
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