TePe interdental brushes are the best I have found. I just started using these brushes this year and tested out several brands. TePe wins hands down. I would use Sunstar G.u.m brand but they have an antibiotic on them. I prefer to just dip my brushes in a little baking soda and use that as an antibiotic--this seems safer and has been just as effective for me. TePe wins!