Not too much but it just feels disgusting to me to keep all of the food bits still suspended in the foam in my mouth.
At least for me, I rinse out my mouth before I brush, so I don't expect to have detectable gunk left over. I also use a tongue scraper after, so I'm usually feeling pretty clean when I'm done.
Wellp, that's something I've never heard before. Even at the dentist, when she does a cleaning, flossing comes last.
https://www.healthline.com/health/dental-and-oral-health/flo...