Caries removal (Hennig, Lasers in Orthop. Dent. & Vet. Med. 1424, 99-105, 1991)
absorption is 4 to 5 times greater for carious than for healthy dentin between 320 & 520 nm
ablation threshold (J/cm2) for 355 nm frequency tripled Nd-YAG laser was
- dark caries, 0.15; light caries, 0.45; healthy dentin, 1.2
therefore, caries removal possible without fear of dentin or enamel damage