Artifact expression of polylactic acid/hydroxyapatite/graphene oxide nanocomposite in CBCT: a promising dental material

Objective To evaluate the artifact expression of a new material—polylactic acid (PLA)/hydroxyapatite (HA)/graphene oxide (GO) nanocomposite—and compare it with that of commonly used dental materials, using cone-beam computed tomography. Materials and methods Cylinders of amalgam alloy, metal alloy,...

Full description

Saved in:
Bibliographic Details
Published in:Clinical oral investigations 2020-05, Vol.24 (5), p.1695-1700
Main Authors: Nejaim, Yuri, Farias Gomes, Amanda, Queiroz, Polyane Mazucatto, da Silva Siqueira, André, Muñoz, Pablo Andrés Riveros, Fechine, Guilhermino José Macêdo, Haiter-Neto, Francisco
Format: Article
Language:English
Subjects:
Computed tomography
Dental restorative materials
Dentistry
Graphene
Hydroxyapatite
Medicine
Nanocomposites
Original Article
Polylactic acid
Titanium
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Objective To evaluate the artifact expression of a new material—polylactic acid (PLA)/hydroxyapatite (HA)/graphene oxide (GO) nanocomposite—and compare it with that of commonly used dental materials, using cone-beam computed tomography. Materials and methods Cylinders of amalgam alloy, metal alloy, titanium, gutta-percha, and PLA/HA/GO were individually placed in the center of an acrylic phantom. Three images of each phantom + cylinder set were acquired using a Picasso Trio unit (Vatech, Hwaseong, South Korea) set at 90 kVp, 3.7 mA, 0.2 mm 3 voxel size, and 12 × 8.5 cm FOV. Three images of a control group (sound phantom) were also obtained. Eight ROIs were established in each image to evaluate the standard deviation (S.D.) of gray values in the ImageJ Software. The Kruskal-Wallis test with the Student-Newman-Keuls post hoc was employed, considering a significance level of 5%. Results There were no significant differences in S.D. between the control and PLA/HA/GO images ( p  = 0.712). Both control and PLA/HA/GO showed fewer image artifacts than the other materials ( p  
ISSN:1432-6981
1436-3771
DOI:10.1007/s00784-019-03027-3