Streptococcus mutans and Streptococcus sobrinus are the main bacteria.
Streptococcus mutans and Streptococcus sobrinus are the main bacteria.
变形链球菌（Streptococcus mutans）及远缘链球菌（Streptococcus sobrinus）是口腔主要致龋菌。
Streptococcus mutans and Streptococcus sobrinus are the main bacteria.
变形链球菌（Streptococcus mutans）及远缘链球菌（Streptococcus sobrinus）是口腔主要致龋菌。