Table 1.

Biofilm removal rate and surface roughness using AIRFLOW and MSM-UNIT

Device	N	Biofilm removal rate (%)			Surface roughness (µm)
		Glass	Sofreliner	Toughsilon	Sofreliner	Toughsilon
AIRFLOW	3	32.5 ± 9.9	51.8 ± 8.5	48.5 ± 8.3	66.2 ± 7.3	90.2 ± 23.5*
MSM-UNIT	3	60.0 ± 12.8*	68.3 ± 6.6	71.2 ± 3.4*	57.0 ± 8.1	66.2 ± 8.1

Values are mean ± SD. The biofilm removal rate of the MSM-UNIT was significantly different to that of AIRFLOW (*p < 0.05). The surface roughness of AIRFLOW for Toughsilon was significantly larger than that of the MSM-UNIT (*p < 0.05). The surface roughness of the AIRFLOW treated area for Toughsilon was significantly larger than that of the control