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通过44例急性和17例慢性牙髓炎的厌氧消化链球菌检出率比较，探讨了该菌在同一牙病不同类型中的致病作用。结果表明：该菌在急性牙髓炎时的检出率显著高于慢性（P＜0．05）。
By comparing the detection rate of anaerobic digestive streptococcus in 44 cases of acute and 17 cases of chronic pulpitis, the pathogenicity of this strain in different types of the same dental disease was discussed. The results showed that the detection rate of the bacteria in acute pulpitis was significantly higher than that of chronic (P <0.05).