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A built-in pressure sensor is essential — most people brush too hard, which damages gums over time.
Oscillating-rotating (Oral-B) vs sonic (Philips Sonicare) — both are clinically proven; it comes down to preference.
Check replacement brush head prices before buying — ongoing costs vary significantly by brand.
Smart features and companion apps genuinely help improve brushing technique, not just marketing gimmicks.
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よくある質問
Oral-B vs Philips Sonicare — which is better?
Both have strong clinical evidence. Oral-B's oscillating technology removes slightly more plaque in studies; Sonicare's sonic vibration feels gentler for sensitive gums.
How often should I replace the brush head?
Every 3 months, or when bristles are visibly frayed. Most brands include colour-fade indicators on bristles to signal when replacement is due.
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