Unverified90% confidenceDecision RuleTime unknown
牙间隙刷尺寸需按牙缝实际间隙选,ISO规格分0-8号,通道直径从0.6mm(0号,SSS)到1.5mm(8号)递增,正常牙缝多数人从ISO 1号(0.7mm)或2号(0.8mm)起选,插入应有轻微阻力而非松垮或强行挤压
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