Table 1.

Means [± standard deviation (SD)] of hydraulic conductance for each gel type after acid challenge as well as minimum and maximum (100%) hydraulic conductance

	10% PROPOLIS		30% PROPOLIS		OXA-GEL		FLUORIDE
	mean±SD	%	mean±SD	%	mean±SD	%	mean±SD	%
Maximum	0.16±0.6	100.0	0.25±0.6	100.0	0.21±0.09	100.0	0.23±0.12	100.0
Minimum	0.03±0.04	17.6	0.09±0.08	38.4	0.03±0.04	11.5	0.01±0.01	8.7
Gel	0.16±0.06	97.1	0.24±0.06	95.2	0.17±0.06	82.6	0.21±0.11	92.5
Acid challenge	0.16±0.07	98.5	0.23±0.06	94.6	0.16±0.06	80.9	0.20±0.11	89.1