In vitro comparison of the radiopacity of cavity lining materials with human dental structures

To compare the optical densities (OD) of calcium hydroxide (CH) and glass ionomer cement with the same thicknesses of the dental structures. Eighteen specimens of each material, with thicknesses of 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0 mm were made in a Teflon matrix. To compare the radiopacity of the ma...

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Bibliographic Details
Published in:Journal of conservative dentistry 2010-04, Vol.13 (2), p.65-70
Main Authors: Pires de Souza, Fernanda Cp, Pardini, Luiz C, Cruvinel, Diogo R, Hamida, Hisham M, Garcia, Lucas Fr
Format: Article
Language:English
Subjects:
Aluminum
Chemical elements
Contrast media
Dentin
Dentistry
Enamel
Original
Properties
Zinc oxides
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Summary:To compare the optical densities (OD) of calcium hydroxide (CH) and glass ionomer cement with the same thicknesses of the dental structures. Eighteen specimens of each material, with thicknesses of 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0 mm were made in a Teflon matrix. To compare the radiopacity of the materials with the dental structures, dental cuts of the first molars, increasing in thickness from 0.5 to 3.0 mm, were obtained. To standardize the radiographs, a transparent acrylic matrix (Standardizing Device) was developed and used. Thirty radiographs were taken, five for each tested material. Statistical analysis (Two-way ANOVA - Bonferroni, P < 0.05) demonstrated that when the materials were compared, there was statistically significant difference between the ODs, only for the thickness of 1.0 mm (P < 0.05). The thickness of the material contributed to its radiopacity, and these materials had to be used in a thickness between 1.5 and 2.0 mm.
ISSN:0972-0707
0974-5203
DOI:10.4103/0972-0707.66713