Oral-B iO Ultimate Clean 替換刷頭，2入，白色

The round head design hugs each tooth way better than my old rectangular brush, and the micro-vibrations make my gums feel genuinely polished after every session. Just wish the two heads lasted longer than my usual three months, but the clean is so smooth I've already ordered another pack.

I was skeptical about the micro-vibrations at first, but after three weeks my teeth feel noticeably smoother in spots my old brush always missed, and the round head gets to the back molars way easier than any flat brush I've tried.

The round head reaches my back molars way better than my old rectangular brush ever did. Pairing these with the iO handle makes my teeth feel like I just left the dentist's chair every single morning.