Ex vivo evaluation of artifacts mimicking fracture lines on cone-beam computed tomography produced by different root canal sealers.
Int Endod J
; 47(1): 26-31, 2014 Jan.
Article
en En
| MEDLINE
| ID: mdl-23621697
ABSTRACT
AIM:
To evaluate streaking artifacts produced by several root canal sealers on CBCT images with variations in voxel resolution.METHODOLOGY:
Single-rooted premolars were selected and root filled using gutta-percha cones and one of the following sealers Endofill, Sealer 26, Fillapex or AH Plus. Root canals filled only with gutta-percha were used as control. Scans of teeth using a small-volume CBCT were performed, and the images acquired were evaluated by two calibrated observers (k > 0.75). Artifacts were identified as streaks and dark bands on root dentine in axial slices with 2 voxel sizes (0.076 and 0.2 mm). Fisher's exact test (P < 0.05) was used to compare the presence/absence ratio of artifacts considering the factors 'sealer' and 'voxel size'.RESULTS:
For the 0.20 mm voxel size, Sealer 26 had significantly more artifacts than Fillapex (P = 0.006) or AH Plus (P = 0.017). No differences existed between the sealers when the 0.07 mm voxel size was used. Sealer 26 (P = 0.042) and Endofill (P = 0.035) had significantly more artifacts in the 0.20 mm voxel size than with the 0.076 mm voxel size, whilst no difference was noted for other filling conditions.CONCLUSIONS:
The material used for root filling and the voxel resolution can influence the presence of streaking artifacts observed in CBCT images.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Materiales de Obturación del Conducto Radicular
/
Fracturas de los Dientes
/
Tomografía Computarizada de Haz Cónico
Tipo de estudio:
Prognostic_studies
Límite:
Humans
Idioma:
En
Revista:
Int Endod J
Año:
2014
Tipo del documento:
Article
País de afiliación:
Brasil