TABLE 2. Scanning electron microscope parameters used in this study.

		Resin replicas	Actual specimens
	Beam current (micro amps)	10 μA	10 μA
	Beam energy (kilovolts)	20 kv	20 kv
	Working distance (millimeters)	18 – 28 mm	18 – 28 mm
	Chamber pressure (Pascal's)	30 Pa	15 – 30 Pa