Can't floss around one side of the crown

I got my molar tooth crowned a few days ago, but can't floss on one side of it. Went to the dentist today, and he told me that he won't adjust it right now, and that with time the space to floss will appear there (he told me that the teeth aren't cemented together or anything, just tight). I asked about caries risk or something, and he told me that I'm fine since my hygiene seems good overall.

Came here for a second opinion. Thoughts?