Unverified75% confidenceDecision RuleTime unknown
工作头应至少包含直头（大面清洁）和弯钩头（牙缝/牙龈缘），带LED补光的工作头更利于自查盲区；工作头材质选医用不锈钢，避免硬塑料划伤牙釉质
1
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75%
Confidence
Long-term
Relevance
-
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