Table 3 Mean(± standard deviation) of surface roughness (Ra,µm) according to experimental conditions (EC) and time (T) for each brushing condition (B)

Non Brushing

Control

0.917 (± 0.085) ^Aa

0.930(± 0.059)^Aa

0.932 (± 0.056)^Aa

0.827

COW

0.937 (± 0.067) ^Aa

0.974(± 0.192)^Aa

0.992 (± 0.186)^Aa

0.585

CPWC

0.947(± 0.47) ^Aa

1.159 (± 0.315)^Aab

1.243 (± 0.203)^Bb

0.009 ^c

p^a

0.641

0.077

0.001^c

Brushing

Control

0.921(± 0.107)^Aa

0.994(± 0.123)^Aa

1.169(± 0.150)^Ab

< 0.001 ^c

COW

0.931(± 0.114)^Aa

1.078(± 0.124)^Aab

1.193(± 0.175)^Ab

< 0.001 ^c

CPWC

0.933(± 0.085)^Aa

1.178(± 0.311)^Aa

1.244(± 0.272)^Ab

0.012 ^c

p^a

0.964

0.188

0.732