Which bacteria feed on sugars and carbon and are considered early colonizers?

Early colonizers in the oral cavity are typically bacteria that feed on sugars and carbon sources. Streptococcus (except for salivarius) and Actinomycetes are known for their ability to utilize sugars as a food source and are among the initial bacteria to colonize the oral cavity after birth. Staphylococcus, E. coli, Pseudomonas, Streptococcus salivarius, and Lactobacillus do not primarily feed on sugars and are not considered early colonizers in the oral cavity.