Fig. 5From: Synonymous point mutation of gtfB gene caused by therapeutic X-rays exposure reduced the biofilm formation and cariogenic abilities of Streptococcus mutansSynonymous mutation of gtfB gene reduced the cariogenic abilities of S. mutans. a The S. mutans population colonized in rats (n = 4). b Stereo microscopy images of caries lesions. c Statistical analysis of the Keyes scores (n = 4). The error bars represent the standard deviation (SD). (* p < 0.05, ** p < 0.01)Back to article page