TABLE 2.

Microflora present at 4 and 8 h of enamel colonization

% of sequences ata:
PhylumGenusSubject 1Subject 2Subject 3
4 h (n = 129)8 h (n = 134)4 h (n = 46)8 h (n = 73)4 h (n = 77)8 h (n = 72)
FirmicutesStreptococcus65.967.967.479.566.273.6
Veillonella8.58.22.2None5.22.8
Gemella3.93.0None4.12.615.3
Abiotrophia1.60.7NoneNoneNoneNone
GranulicatellaNone1.56.54.1NoneNone
Peptostreptococcus0.8NoneNoneNoneNoneNone
MogibacteriumNone0.7NoneNoneNoneNone
MegasphaeraNone0.7NoneNoneNoneNone
Selenomonas0.80.7NoneNoneNoneNone
Oribacterium0.8NoneNoneNoneNoneNone
Unculturedb4.72.2NoneNoneNoneNone
ActinobacteriaActinomycesNone1.5None1.47.8None
CorynebacteriumNoneNoneNone4.1NoneNone
Rothia0.81.5NoneNone13.0None
Atopobium0.8NoneNoneNoneNoneNone
ProteobacteriaNeisseria2.31.515.25.51.31.4
Candidatus Burkholderia”1.60.74.3NoneNoneNone
HaemophilusNoneNone4.31.4None1.4
BacteroidetesPrevotella7.07.5NoneNone2.6None
Porphyromonas0.81.5NoneNoneNone1.4
FusobacteriumNoneNoneNoneNone1.3None
BacteroidesNoneNoneNoneNoneNone1.4
UnculturedcNoneNoneNoneNoneNone2.8
  • a Data represent percentages of sequences that clustered within each genus after phylogenetic analysis. n, number of clones sequenced from each sample.

  • b Sequences of uncultured Firmicutes were all placed within the Clostridia class after phylogenetic analysis.

  • c Sequences of uncultured Bacteroidetes were placed under the class Flavobacteria after phylogenetic analysis.