Fig. 9From: Optimization of PC micro-drilling using a continuous CO2 laser: an experimental and theoretical comparative studya The progression of the hole’s development at different times and powers with constant FPP (−4 mm). b The progression of the hole’s development at different times and powers with constant FPP (−2 mm). c The progression of the hole’s development at different times and powers with constant FPP (0)Back to article page