Effect of root canal filling materials on dimensions of cone-beam computed tomography images (original) (raw)

2012, Journal of Applied Oral Science

from original root specimens and cone-beam computed tomography (CBCT) images. Material and Methods: Seventy-two human maxillary anterior teeth were prepared up to an ISO #50 K-File 1 mm short of the apical foramen. Thus, the teeth were randomly divided LQWR JURXSV DFFRUGLQJ WR WKH URRW FDQDO ¿OOLQJ PDWHULDO 6HDODSH[ ® , Sealapex ® +guttapercha points, Sealer 26 ® , Sealer 26 ® +gutta-percha points, AH PlusTM, AH PlusTM+guttapercha points, Grossman Sealer, and Grossman Sealer+gutta-percha points. After root canal preparation and RCF, CBCT scans were acquired and the specimens were sectioned in axial, sagittal and coronal planes. The RCF measurements were obtained in different planes and thicknesses to determine the discrepancy between the original root specimens (using a digital caliper) and the CBCT images (using the scanner's proprietary software). One-way DQDO\VLV RI YDULDQFH DQG 7XNH\ WHVWV ZHUH XVHG IRU VWDWLVWLFDO DQDO\VHV 7KH VLJQL¿FDQFH OHYHO was set at D 5HVXOWV 0HDVXUHPHQWV RI WKH GLIIHUHQW HQGRGRQWLF ¿OOLQJ PDWHULDOV ZHUH 9% to 100% greater on the CBCT images than on the original root specimens. Greater RCF GLPHQVLRQV ZHUH IRXQG ZKHQ RQO\ VHDOHUV ZHUH XVHG ZLWK VWDWLVWLFDOO\ VLJQL¿FDQW GLIIHUHQFH among the groups. Conclusions: RCF dimensions were greater on CBCT images than on the original root specimens, especially when only sealer was used.