Cleaning my gums after wisdom teeth removal

Hey, I had them removed 5 days ago and now I got a tiny piece of biscuit stuck in my gums (I know I shouldn't have eaten it, but I was craving for something sweet)

Any advice how to clean it, cause I have problems reaching it and don't want to do something wrong.

The "little thingies" I had for cleaning them from my dentist are all gone already.
Cleaning my gums after wisdom teeth removal
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