Table 1.

Composition of supragingival biofilm (the table was prepared based on data published by Zijnge et al. [32])

Basal layer—attached to the surface of teeth and consists of four types of biofilm	The first type: - rod-shaped cells of Actinomyces located vertically towards the surface of the teeth
	The second type: - Actinomyces sp. - cocci chains, not identified as Streptococcus, located vertically towards the surface of the teeth
	The third type: - filamentous bacteria - Streptococcus creating distinct colonies around yeast cells (Candida sp.)
	The fourth type: - mainly Streptococcus developing in the vicinity of Lactobacillus sp. located vertically to the surface of the teeth
Top layer—covers all types of biofilm-forming basal layer	- Streptococcus sp. in a form of heterogeneous distributed cells, or as a flat, thin layer on the top - heterogeneous distributed bacteria creating CFB cluster - external layer: Lactobacillus sp. surrounded with cells with various morphology