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| Modality | Tissue contact | Depth of penetration |
|---|---|---|
| Electrocautery | Yes | Variable |
| Nd:YAG and Nd:YAP | No | Up to 10 mm |
| APC | No | 2-3 mm |
| Cryotherapy | Yes (except spray cryo) | 2-5 mm |
Nd:YAG, neodymium-doped:yttrium-aluminum-garnet; Nd:YAP, neodymium:yttrium-aluminum-perovskite.
