目的：探讨酚醛树脂用于牙齿点隙裂沟封闭的抑菌杀菌作用效果。

Objective: To explore the microbial inhibitory effect of phenol-formaldehyde resin in sealing up pits and fissures.

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方法采用肉汤二倍稀释法测定最低抑菌浓度（MIC）和最低杀菌浓度（MBC）。

Method Minimal inhibitory concentration(MIC) and Mininal bactericidal concentration(MBC) were determined by double broth dilution method.

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主要用途：消毒防腐药，具有相当强的广谱抑菌、杀菌作用，对革兰阳性菌及革兰阴性菌均有效。

Main purposes: disinfection antisepsis drugs, with a strong broad-spectrum antimicrobial, bactericidal effect on gram-positive bacteria and Gram-negative bacteria are effective.

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