| CO2 | Carbon dioxide laser |
| Er,Cr:YSGG | Erbium chromium yttrium scandium gallium-garnet laser |
| Er:YAG | Erbium-doped yttrium aluminum garnet laser |
| KTP | Potassium titanyl phosphate laser |
| Nd:YAG | Neodymium-doped yttrium aluminum garnet laser |
| ULF | Upper labial frenulum |
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