Table 2

Percentage of children demonstrating brushing skills by dentition segments, before and after program

segment
N
before
after
difference
95% Confidence Interval

A – labial anterior
196
92.3%
98.5%
6.2%
3.4 – 10.0
B – buccal maxillary
196
63.8%
94.4%
30.6%
24.5 – 37.3
C – buccal mandibular
196
61.7%
92.9%
31.1%
24.9 – 37.9
D – occlusal
193
32.1%
87.0%
54.9%
47.9 – 61.8
E – lingual maxillary anterior
194
10.3%
61.9%
51.6%
44.5 – 58.5
F – lingual mandibular anterior
195
9.7%
55.9%
46.2%
39.2 – 53.2
G – lingual maxillary posterior
196
8.7%
43.4%
34.7%
28.3 – 41.6
H – lingual mandibular posterior
195
8.2%
43.1%
34.9%
28.4 – 41.8

Statistical analysis by McNemar test, comparing yes/no before vs. yes/no after, adjusted by the Holms method for multiple testing:

A: for males and total not significant, for females: p = 0.002

B-H: for males, females and total: p < 0.001

Missing data from 1–3 children, for segments: D, E, F, H

Livny et al. BMC Oral Health 2008 8:4   doi:10.1186/1472-6831-8-4