Crown-down preflaring in the determination of the first apical file
Braz. oral res
;
24(2): 153-157, Apr.-June 2010. tab, graf
Artigo
em Inglês
| LILACS
| ID: lil-553914
ABSTRACT
In this study, scanning electron microscopy (SEM) was used to evaluate the adaptation of the first apical file after preflaring in mesiobuccal (MB) and mesiolingual (ML) canals of mandibular molars considering the tactile sensibility as a reference. The mesial canals (n = 22) of human mandibular molar teeth were used, and the first instrument to bind to the working length was determined after preflaring and crown-down shaping. Digital images of the root apex were acquired and a single examiner determined the contact of the file with the walls using Image J software. The results showed that the file was in contact in 47.83 percent and 31.71 percent in the MB and ML canals, respectively. When the apexes are fused, the average was 40.03 percent. A descriptive analysis showed that the first apical file did not touch all dentin walls in any of the samples.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Preparo de Canal Radicular
/
Cavidade Pulpar
/
Dente Molar
Limite:
Humanos
Idioma:
Inglês
Revista:
Braz. oral res
Assunto da revista:
Odontologia
Ano de publicação:
2010
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Federal University of Pelotas/BR
/
Laboratory of Immunology and Microscopy/BR
/
University of São Paulo/BR
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