There are many differing theories on this. Some argue that flossing should come first because, when flossing, plaque and bits of food are loosened and should be brushed away after you’ve finished flossing.
Fluoride from the toothpaste will make better contact if food wedged in between the teeth is removed before brushing.
The argument for brushing first and then flossing is that brushing your teeth first removes the bulk of the plaque on the teeth. Flossing afterward forces the remaining bit of fluoride left on the teeth from brushing into the in-between spaces.
However, a July 2018 study suggests that there actually is a right answer: start with flossing.
In the study, researchers found that beginning with flossing helped subjects remove more plaque between teeth and help fluoride get to the right place. If you’re using a non-toxic toothpaste with nano-hydroxyapatite (like Boka), the same rule should theoretically apply.
Here’s my opinion: As long as you’re asking this question, it means you’re doing both, and that’s what matters most. The synergy between flossing and brushing (and not the order in which you do them) will lengthen your life, improve your cognitive abilities, and will keep your teeth healthy and beautiful.
Unfortunately, if people are going to do one or the other, they’re going to brush. Flossing tends to be thought of as secondary, maybe because we’ve been told since childhood the same phrase over and over, “Brush, then floss.”
Imagine staining only the front and back of a fence, but neglecting to paint the insides – sure, you’ve stained the front and back of the fence, but the insides are going to rot. The same goes with teeth – if you neglect to floss, you can still get cavities in between.
It’s a widespread myth that you can get away with brushing only. Flossing cleans out the parts of the teeth that the toothbrush cannot reach. Brushing without flossing can result in cavities, gum disease, and even heart disease.
So, whether you brush first or floss first is your preference! I recommend that you stick with whatever works for you so that you stay in the habit of always brushing and flossing. Just keep in mind that beginning with flossing might be marginally better for long-term dental health.Read Next: How to Floss the Right Way
- Mazhari, F., Boskabady, M., Moeintaghavi, A., & Habibi, A. (2018). The effect of toothbrushing and flossing sequence on interdental plaque reduction and fluoride retention: A randomized controlled clinical trial. Journal of periodontology, 89(7), 824-832. Abstract: https://www.ncbi.nlm.nih.gov/pubmed/29741239