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Radiopacity of Esthetic Post Materials: Evaluation with Digital Analysis Technique
Mehmet Emin Kaval1, Hakan Akin2, Pelin Guneri3
1Department of Endodontology, School of Dentistry, Ege University, Izmir, Turkey.
Summary
This study assessed the radiopacity of five dental post materials. Zirconia posts exhibited higher radiopacity than fiber-based posts, with all materials exceeding dentin radiopacity.
Area of Science:
- Dental Materials Science
- Radiology
- Biomaterials
Background:
- Accurate visualization of dental posts is crucial for clinical assessment.
- Radiopacity of post-endodontic materials influences diagnostic imaging interpretation.
- Variations in radiopacity among different post types necessitate comparative evaluation.
Purpose of the Study:
- To quantitatively evaluate and compare the radiopacity of five distinct dental post materials.
- To utilize a digital image analysis method for precise radiopacity measurement.
- To determine if tested post materials offer superior radiopacity compared to natural dentin.
Main Methods:
- Five post materials (two zirconia, three fiber-based) were prepared into 2mm thick specimens.
- Digital radiographs were captured alongside aluminum step-wedges and dentin discs.
- Mean gray values were analyzed using ANOVA and Holm-Sidak tests.
Main Results:
- Custom zirconia posts demonstrated the highest radiopacity (5.842 mmAl).
- FRC-Postec (fiber-based) showed the lowest radiopacity (1.716 mmAl).
- Significant differences in radiopacity were found among most groups (p < 0.05).
Conclusions:
- All evaluated post materials possess radiopacity greater than that of dentin.
- Further research is needed to establish optimal radiopacity for enhanced clinical monitoring of post materials.
