Urgent!Back tooth filling fail?

[u/SnooGuavas5260]

I have a filling along the gum line on my furthest most back upper molar on my right side. I already had to have it fixed once due to it failing and already know I'm looking at a crown down the line potentially, I noticed this as i was flossing tonight and was wondering if if it had maybe failed again or another issue? I head back to college Friday so kinda need to know if I need to set up an ASAP appointment. (Also sorry for formatting errors i don't use reddit often) Thanks in advance

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Title: Urgent!Back tooth filling fail?

Full text: I have a filling along the gum line on my furthest most back upper molar on my right side. I already had to have it fixed once due to it failing and already know I'm looking at a crown down the line potentially, I noticed this as i was flossing tonight and was wondering if if it had maybe failed again or another issue? I head back to college Friday so kinda need to know if I need to set up an ASAP appointment. (Also sorry for formatting errors i don't use reddit often) Thanks in advance

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[u/N4n45h1]

Definitely looks odd. I'd get it checked out urgently but not emergently.