Dental and Medical Problems

Dent Med Probl
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ISSN 1644-387X (print)
ISSN 2300-9020 (online)
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Dental and Medical Problems

2019, vol. 56, nr 3, July-September, p. 285–290

doi: 10.17219/dmp/109550

Publication type: original article

Language: English

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Creative Commons BY-NC-ND 3.0 Open Access

Comparison of the radiopacity of selected materials used for vital pulp therapy: An in vitro assessment

Porównanie pochłaniania promieni rentgenowskich przez wybrane materiały stosowane w leczeniu biologicznym miazgi – ocena in vitro

Elżbieta Łuczaj-Cepowicz1,A,B,C,D,E, Grażyna Marczuk-Kolada1,A,B,C,D,E, Małgorzata Pawińska2,D,E, Janusz Różycki3,B,C, Ewa Chorzewska1,E

1 Department of Pedodontics, Medical University of Bialystok, Poland

2 Department of Integrated Dentistry, Medical University of Bialystok, Poland

3 Department of Radiology, Medical University of Bialystok, Poland


Background. An assessment of the therapeutic effects of vital pulp treatment is based on both clinical and radiological evaluation.
Objectives. The aim of the research was a long-term (after 1, 2, 4, 6, and 8 weeks) radiological assessment of X-ray absorption by 8 selected materials used for the vital treatment of dental pulp.
Material and Methods. The materials, prepared in accordance with the manufacturers’ recommendations, were placed in molds measuring 10 mm in diameter and 2 mm in thickness. The molds with the samples were placed on an occlusal film with an aluminum step wedge, and then X-rayed using an intraoral X-ray unit. After processing, an X-ray image with varying degrees of opacity was obtained. The radiological density of the samples, the step wedge and the background was measured 6 times using a densitometer. The tests were repeated at the following intervals: after 7 days, and after 2, 4, 6, and 8 weeks. The molds with the material samples were stored in an incubator at 37°C and 95% humidity.
Results. The obtained results were statistically analyzed. The mineral trioxide aggregate (MTA) materials exhibited the highest degree of contrast, whereas the lowest radiopacity was shown for the non-setting calcium hydroxide preparations (p < 0.0001). Calcium hydroxide cements presented medium radiopacity values.
Conclusion. The radiopacity of all the evaluated materials showed a statistically insignificant increasing tendency with regard to the duration of the experiment. All the tested preparations showed acceptable radiopacity, enabling radiological detection in the course of vital pulp therapy.

Key words

mineral trioxide aggregate, densitometry, calcium hydroxide, X-ray absorption, vital dental pulp therapy

Słowa kluczowe

agregat trójtlenków mineralnych, densytometria, wodorotlenek wapnia, pochłanianie promieni rentgenowskich, leczenie biologiczne miazgi zębów

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