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Influence of pulp condition on the accuracy of an electronic foramen locator in posterior teeth: an in vivo study
Renner, Daniel; Grazziotin-Soares, Renata; Gavini, Giulio; Barletta, Fernando Branco.
  • Renner, Daniel; Santa Cruz do Sul University. School of Dentistry. Department of Endodontics. Santa Cruz do Sul. BR
  • Grazziotin-Soares, Renata; Lutheran University of Brazil. School of Dentistry. Department of Restorative Dentistry. Canoas. BR
  • Gavini, Giulio; University of São Paulo. School of Dentistry. Department of Endodontics. São Paulo. BR
  • Barletta, Fernando Branco; Lutheran University of Brazil. School of Dentistry. Department of Restorative Dentistry. Canoas. BR
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®.
Assuntos


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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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