Occurrence of no-function of two electronic apex locators: an in vivo study.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod
; 108(6): e61-5, 2009 Dec.
Article
em En
| MEDLINE
| ID: mdl-19875315
ABSTRACT
OBJECTIVES:
This in vivo study was aimed at quantifying the electronic no-function rate of 2 electronic apex locators, ApexPointer and Novapex, and evaluating whether their operation is affected by the type of applied treatment, patient's age, and the type of tooth. STUDYDESIGN:
A total of 209 root canals were included in this study. For each canal, the electronic length was determined and verified by radiography. Whenever the electronic device failed to provide a value, it was recorded as an electronic no-function. Experimental data were statistically tested with chi-squared through Statview.RESULTS:
For both apex locators, the no-function rate remained around 15% and did not seem to be affected by the age of patients. A statistically significant relationship was found between no-function rate and retreatment (P < .05). The type of tooth had no influence on the no-function rate.CONCLUSIONS:
Under the conditions of this assessment in vivo, the 2 apex locators proved to give no value in about 15% of the cases. Further investigations are necessary to clear up the links between no-function and retreatment or age.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Tratamento do Canal Radicular
/
Ápice Dentário
/
Análise de Falha de Equipamento
/
Cavidade Pulpar
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article