Caracterização da imagem do canal radicular preenchido com hidróxido de cálcio na tomografia computadorizada de feixe cônico
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2011
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Resumo
Aim: To characterize the image of the root canal filled
in with calcium hydroxide in cone beam computed
tomography (CBCT).
Methodology: Twenty-seven root canals were prepared up
to K-file #50, 1 mm below the foramen. After, the teeth were randomly
divided into three groups: group 1- root canals filled
in with calcium hydroxide paste associated with saline (n=9);
group 2- root canals filled with Endo-Fill ® and gutta-percha
(n=9); group 3- root canals without filling (n=9). After root
canals preparation and filling, CBCT images were acquired
and the specimens sectioned in axial, sagittal or coronal plans
using Endo Z drills at high speed. Root canals measurements
from cross sections of specimens were obtained using a digital
caliper, and from CBCT images using the manufacturer’s software. The differences between the sizes of specimens and
CBCT images were determined at different plans.
Results: Specimens images of the group containing calcium
hydroxide paste had densities similar to those ones observed
in dentin, which did not allow the measurement in order
to determine size change. The group filled in with Endo-Fill ®
and gutta-percha showed an increase of 37.40% to 47.40% in the
dimensions of radiopaque images.
Conclusion: Images of cone beam computed tomography in
root canals filled in with calcium hydroxide pastes showed densities
similar to those of dentin, which did not determine dimensional
changes. Care should be taken that these images are not
confused with calcified canals
Descrição
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Tomografia computadorizada de feixe cônico, Imagens, Hidróxido de cálcio, Medicação intracanal, Cone beam computed tomography, Images, Intracanal dressing, Calcium hydroxide
Citação
ESTRELA, Carlos et al. Caracterização da imagem do canal radicular preenchido com hidróxido de cálcio na tomografia computadorizada de feixe cônico. Robrac: revista odontologica do Brasil Central, Goiânia, v. 20, n. 52, p. 92-96, 2011.