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Prevalence Of Prevotella Intermedia And Prevotella Nigrescens In Infected Root Canals From A Brazilian Population
Author(s) -
Siqueira José,
Rôças Isabela N.,
Oliveira Julio Cezar M.
Publication year - 2000
Publication title -
australian endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.703
H-Index - 34
eISSN - 1747-4477
pISSN - 1329-1947
DOI - 10.1111/j.1747-4477.2000.tb00293.x
Subject(s) - prevotella intermedia , prevotella , biology , population , 16s ribosomal rna , microbiology and biotechnology , polymerase chain reaction , veterinary medicine , medicine , bacteria , genetics , porphyromonas gingivalis , environmental health , gene
The purpose of the present study was to evaluate the prevalence of Prevotella intermedia and Prevotella nigrescens in symptomatic and asymptomatic endodontic infections from a Brazilian population. DNA extracted from samples obtained from 28 cases of endodontic infection were examined by the 16S rDNA‐directed Polymerase Chain Reaction (PCR) method. PCR detected P. intermedia in 7.1% of the cases (2 out of 28 teeth) and P. nigrescens in only one sample (3.6%). The low prevalence of P. intermedia and P. nigrescens as reported in the present study is probably justified for geographical reasons.