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
Article
in English
| 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®.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Root Canal Preparation
/
Tooth Apex
/
Dental Pulp
/
Dental Pulp Cavity
Type of study:
Evaluation studies
Limits:
Adolescent
/
Adult
/
Aged
/
Humans
Language:
English
Journal:
Braz. oral res
Journal subject:
Dentistry
Year:
2012
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Lutheran University of Brazil/BR
/
Santa Cruz do Sul University/BR
/
University of São Paulo/BR
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