[Association between Bacteroides forsythus in the infected root canals and clinical symptoms of chronic apical periodontitis].
Sichuan Da Xue Xue Bao Yi Xue Ban
; 36(1): 46-9, 2005 Jan.
Article
em Zh
| MEDLINE
| ID: mdl-15702778
ABSTRACT
OBJECTIVE:
To investigate the distribution of Bacteroides forsythus in root canals with chronic apical periodontitis and to determine its associations with clinical symptoms.METHODS:
Thirty-eight tooth root canals from 31 subjects were studied with a 16S rDNA-directed polymerase chain reaction (PCR). These teeth were classified into symptomatic and asymptomatic groups according to the clinical symptoms and signs, including spontaneous pain, percussion pain, sinus tract and swelling, respectively.RESULTS:
Ten of the 38 root canal samples were positive for B. forsythus. The prevalence of B. forsythus was 26.3% for 38 root canals, 45.5% for spontaneous pain group, 39.1% for percussion pain group, 29.4% for sinus tract group, 42.9% for swelling group, respectively. Significant positive associations were observed between B. forsythus in infected root canals and the spontaneous pain, percussion pain, and swelling of apical periodontitis, respectively (OR=infinity, 9, 12; P<0.05). There was no significant association between B. forsythus and sinus tract of apical periodontitis (OR=1.33).CONCLUSION:
B. forsythus colonized in the infected root canals. It is the putative pathogen of apical periodontitis.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Periodontite Periapical
/
Pulpite
/
Bacteroides
/
Infecções por Bacteroides
Tipo de estudo:
Diagnostic_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Child
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
Zh
Ano de publicação:
2005
Tipo de documento:
Article