Influence of pulp condition on the accuracy of an electronic foramen locator in posterior teeth: an in vivo study
Braz. oral res
;
26(2): 106-111, Mar.-Apr. 2012. tab
Artigo
em Inglês
| LILACS
| ID: lil-622916
ABSTRACT
The aim of this study was to assess, in vivo, the accuracy of the NovApex® electronic foramen locator in determining working length (WL) in vital and necrotic posterior teeth. The NovApex®was used in 144 canals 35 teeth with vital pulps (68 canals) and 42 teeth with necrotic pulps (76 canals). WL was measured with the NovApex® locator and confirmed using the radiographic method. Differences between electronic and radiographic measurements ranging between 0.0 and 0.4 millimeters were classified as acceptable; differences equal to or greater than 0.5 millimeter were considered unacceptable. Pearson's chi-square test was used to assess the influence of pulp condition on the accuracy of NovApex®(a = 0.05). Regardless of pulp condition, differences between electronic and radiographic WL measurements were acceptable in 73.61% of the canals. No statistically significant differences in accuracy were observed when comparing vital and necrotic canals (p > 0.05). There were 38 unacceptable measurements. In none of these cases was the file tip located beyond the radiographic apex; in 32, it was located short of the NovApex® measurement. Pulp condition had no significant effect on the accuracy of NovApex®.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Preparo de Canal Radicular
/
Ápice Dentário
/
Polpa Dentária
/
Cavidade Pulpar
Tipo de estudo:
Estudos de avaliação
Limite:
Adolescente
/
Adulto
/
Idoso
/
Humanos
Idioma:
Inglês
Revista:
Braz. oral res
Assunto da revista:
Odontologia
Ano de publicação:
2012
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Lutheran University of Brazil/BR
/
Santa Cruz do Sul University/BR
/
University of São Paulo/BR
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