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Novel Bacterial Phylotypes in Endodontic Infections
J.F. Siqueira, Jr.1,2,*,
I.N. Rôças1,
C.D. Cunha2 and
A.S. Rosado2
1 Department of Endodontics, Estácio de Sá University, Rio de Janeiro, Brazil; and
2 Institute of Microbiobiology Prof. Paulo de Góes, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil;

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Figure 1. DGGE band profiles of amplified 16S rDNA from samples taken from infected root canals. Numbered bands were excised and sequenced.
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Figure 2. Neighbor-joining tree showing phylogeny of 16S rDNA sequences obtained directly from cases of primary endodontic infection. Sequences were aligned with ClustalW, and distances were calculated with the Jukes-Cantor algorithm. Five hundred bootstrap trees were generated, and bootstrap confidence levels as percentages (only values over 50%) are shown at tree nodes. Accession numbers for each 16S rDNA sequence are given. Scale bar shows number of nucleotide substitutions per site.
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Journal of Dental Research, Vol. 84, No. 6,
565-569 (2005)
DOI: 10.1177/154405910508400615

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