Ex vivo performance of five methods for root canal length determination in primary anterior teeth.
Int Endod J
; 43(2): 142-7, 2010 Feb.
Article
em En
| MEDLINE
| ID: mdl-20078703
AIM: To evaluate in a laboratory setting the performance of five methods for the determination of root canal length in primary anterior teeth. METHODOLOGY: Twenty extracted primary incisors, with at least two-thirds of the root, were used. After access cavity preparation, the teeth were embedded in alginate mixed with 0.9% sodium chloride solution. One operator determined root canal length using tactile sense (T), conventional radiography (RAD), tactile sense and conventional radiography (T + RAD), digital radiography (RDIG) and Root ZX electronic apex locator (EAL) methods. Next, the actual length (AL) was visually determined using a K-file from the coronal reference to the apical foramen or apical resorption level. The measurements obtained through each method were compared to the AL using the intraclass correlation coefficient (ICC) with the limits of agreement calculated with Bland and Altman analysis. The measurements were classified as acceptable (+/-1 mm from the AL) or not (>1 mm shorter or longer), and the McNemar test was employed for method comparison. RESULTS: Differences, limits of agreement and ICCs for each method were respectively EAL = -0.29; -1.02 to 0.44; 0.990; T + RAD = 0.17; -2.18 to 2.51; 0.929; RAD = 0.50; -3.41 to 4.41; 0.818; RDIG = 0.95; -3.76 to 5.65; 0.700; and T = -0.48; -5.59 to 4.64; 0.499. The most accurate and acceptable method was the EAL, followed by the T + RAD. : The EAL method performed best for root canal length determination in primary teeth.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Tratamento do Canal Radicular
/
Dente Decíduo
/
Ápice Dentário
/
Incisivo
Tipo de estudo:
Evaluation_studies
Limite:
Humans
Idioma:
En
Revista:
Int Endod J
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Reino Unido