Botched teeth whitening?

[Tacotown]

Got laser teeth whitening treatment last Friday evening and it destroyed my gums.Had to go to my doctor to get an antibiotics and then the dentist for access the damage..could anyone.give me an opinion if there could be long term damage dome please .It's very sore even when taking stong pain killers

 

[MattKW]

Looks like a chemical burn to me from the bleach getting onto the gums (the laser won't do that). Unlikely to be long-term damage. Normally the dentist applies either a rubber dam or a liquid silicone-like coating to the gums to prevent bleach getting onto the gums.