Unverified80% confidenceTradeoffTime unknown
金属芯齿间刷清洁力更强、刷丝更硬挺不易变形,但反复弯折约30-50次后金属芯易疲劳折断;无金属芯(一体成型)弹性更好、更安全但清洁效率略低,适合敏感牙龈或初学者
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
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