Influence of root canal preparation on anaerobic bacteria in teeth with asymptomatic apical periodontitis
Braz. endod. j
; 1(1): 7-10, 1996. tab
Artigo
em Inglês
| BBO - Odontologia
| ID: biblio-850499
Biblioteca responsável:
BR97.1
Localização: BR97.1
ABSTRACT
Root canal preparation has been considered one of the most important phases of root therapy. The development of technique for the growth and isolation of anaerobic bacteria shows that they are much more prevalent in root canals with apical periodontitis than previously thought. Independent of the technique used to prepare the infected root canal, elimination of bacteria is achieved by the mechanical cleansing with files and the use of an effective antimicrobial irrigant and dressing. How much the canal should be enlarged has not get been is not standardized. The authors studied the influence of root canal preparation on anaerobic bacteria in teeth with asymptomatic apical periodontitis using bacterial samples and microbiological analysis, taking as the master apical file, the third and fourth instrument after the initial file that binds slightly at the apical third. Preparing of the root canal using a non antisseptic irrigant (saline solution) reduced the number of anaerobic bacteria but did not eliminate them. When 1 per cent sodium hypochlorite was used as an irrigant, the qualitative reduction was more significant but did not eliminate all of them. Peptostreptococcus prevoti and Clostridium histolytiicum were the prevalent bacteria. The concept of enlarging the root canal three or four sizes larger than the initial file is not enough to eliminate bacteria from infected root canals
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Coleções:
Bases de dados nacionais
Base de dados:
BBO - Odontologia
Assunto principal:
Periodontite Periapical
/
Tratamento do Canal Radicular
/
Bactérias Anaeróbias
/
Cavidade Pulpar
Tipo de estudo:
Pesquisa qualitativa
Idioma:
Inglês
Revista:
Braz. endod. j
Ano de publicação:
1996
Tipo de documento:
Artigo