Oral-B 精密清潔 X-纖維刷頭，3支裝

The cross-shaped bristles grab plaque between my molars way better than the flat ones I used before, and the 3-pack lasts me about three months. My dentist actually noticed the difference at my last cleaning.

The X-filament bristles actually do a better job of digging into the gaps between my molars than the flat ones I used before. They clicked right onto my handle without any fuss, and the 3-pack should last me a solid few months of twice-daily brushing.

The bristles on these hold their stiffness way longer than my old generic ones, so I'm not replacing them every two weeks. They snap onto my Oral-B handle with zero fuss, which makes the whole routine feel effortless.