When I ate a lot of carbohydrates, no matter how thoroughly I brushed and floshed my teeth every day, my dentist would be like, “eh you could do better.”

When I sharply reduced my carbohydrates, even when I was a bit less thorough in brushing, my dentist would be like, “it all looks great, good job.”

Just my multi-year experience. I don’t claim to say it’s universal.