The elucidation of the cause of adult caries based on the comprehensive analysis of plaque microbita

无龋组牙菌斑中Gemella的分布率高于有龋组。无龋组菌斑中G.溶血素主要在生物膜形成阶段检测到。在有龋组的菌斑中，G。morbillorum和G. sanguinis在后期检出率较高，而G.溶血素在早期的分布率较高。这些结果表明，Gemella和Gemella碎片在菌斑中的分布率在两组之间存在差异，表明Gemella可能参与龋病的发生。

The distribution rate of Gemella in the plaque of the caries-free group showed the high tendency compared with that of the caries-experienced group. In the plaque of the caries-free group, G. haemolysans was detected predominantly duringthe biofilm formation stage. On the other hand, in the plaque of caries-experienced group,G. morbillorum and G. sanguinis were detected by the high ratio in the late stage, while G. haemolysans showed the high distribution rate in the early stage. These results indicate that the distribution rates of Gemella and Gemella spieces in a plaque differ between both groups, suggesting that Gemella may be involved in caries incidence.