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. 2024 May 14;24:566. doi: 10.1186/s12903-024-04313-7

Table 1.

Characteristics of participants at baseline

Total
(N = 31)
Microdroplet device
& PTB (Listerine®) (H2O)
Microdroplet device
& PTB (Listerine®)
Control
(Dental floss & MTB)
p-value*
Age 0.372
Mean ± SD 32 ± 14 29 ± 7 30 ± 13 37 ± 19
Range 19–82 20–45 19–60 21–82
sex, n (%)
male 13 (42) 5 (50) 2 (18.2) 6 (60)
female 18 (58) 5 (50) 9 (81.8) 4 (40)
DMFT 0.929
Mean ± SD 8.9 ± 7.8 8.3 ± 8.4 9.6 ± 7.6 8.8 ± 8.4
Range 0–22 0–22 0–21 0–21
PBI 0.999
Mean ± SD 1.6 ± 0.5 1.6 ± 0.5 1.6 ± 0.5 1.6 ± 0.6
Range 1–3 1–3 1–3 1–3
RMNPI
Mean ± SD 1 ± 0 1 ± 0 1 ± 0 1 ± 0
Range 1–1
QHI 0.162
Mean ± SD 2.3 ± 1.1 2.0 ± 0.7 2.8 ± 1.5 2.1 ± 0.6
Range 1–5

*p < .05, analyzed with ANOVA. DMFT, decayed, missing, filled teeth; MTB, manual toothbrush; PBI, papillary bleeding index; PTB, powered toothbrush; QHI, Quigley-Hein index; RMNPI, Rustogi modified Navy Plaque index; SD, standard deviation;