ما هو حكم توريد اللثة بالليزر؟

It is permissible to lighten the gums with laser if their color has changed due to illness or smoking, because this falls under the category of treatment and restoring the matter to its original creation.

However, if a person was born with dark-colored gums and does not suffer from any disease, it is not permissible to use a laser to change their color, because this is altering Allah's creation, similar to attempting to change skin color.