Table 3.
LCU, light-curing unit; QTH, quartz tungsten halogen; LED, light-emitting diode.
Different upper case letters show significant differences in the column. Different lower case letters show significant differences in the row.
LCU, light-curing unit; QTH, quartz tungsten halogen; LED, light-emitting diode.
Different upper case letters show significant differences in the column. Different lower case letters show significant differences in the row.