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Radiopacity evaluation of different types of resin restorative materials using a digital radiography system

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Abstract

Objectives

The aim of the study was to evaluate and compare the radiopacity of 20 current dental resin composites with digital radiography.

Methods

Ten specimens, 10-mm in diameter and 1-mm thickness, were prepared and radiographed using phosphor plates close to Al step wedges and tooth sections. The mean grey values (MGVs) were measured using an ImageJ software program and converted to equivalent Al thickness. Data were analyzed using one-way analysis of variance (ANOVA) and Tamhane post hoc test (p < 0.05). Correlation between mean radiopacity and filler content (wt% and vol%) of the tested materials was analyzed with linear regression analysis.

Results

The radiopacity of all composites ranged from 1.32 mm Al (Estellite Flow Quick) to 3.41 mm Al (Charisma Classic). All the tested materials, except four restorative materials, had a radiopacity equal or higher than the enamel (p < 0.05). Linear regression revealed low correlation between the radiopacity and filler content of the composite.

Conclusion

Majority of the materials has appropriate radiopacity for dental restorations. There was great variation in radiopacity level, may clinically affect the diagnosis.

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Funding

The authors do not have any financial interest in the companies whose materials are included in the article.

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Authors and Affiliations

  1. Department of Restorative Dentistry, Faculty of Dentistry, İstanbul Medipol University, TEM Avrupa Otoyolu Göztepe çıkışı no:1, 34214, Bağcılar-Istanbul, Turkey

    Ceyda Gündoğdu

  2. Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, Emek-Ankara, Turkey

    Sinem Akgül

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  1. Ceyda Gündoğdu
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  2. Sinem Akgül
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Correspondence to Ceyda Gündoğdu.

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Gündoğdu, C., Akgül, S. Radiopacity evaluation of different types of resin restorative materials using a digital radiography system. Oral Radiol 39, 646–653 (2023). https://doi.org/10.1007/s11282-023-00679-6

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  • DOI: https://doi.org/10.1007/s11282-023-00679-6

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