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Radiopacity evaluation of calcium silicate cements.
Havva Gozde Sen1,2, Dilek Helvacioglu-Yigit3, Ayca Yilmaz1
1Department of Endodontics, Faculty of Dentistry, Istanbul University, Istanbul, Turkey.
BMC Oral Health
|July 15, 2023
Summary
ProRoot MTA exhibited the highest radiopacity among the tested calcium silicate cements. Most materials met international standards for radiopacity, crucial for root canal filling materials.
Area of Science:
- Dental Materials Science
- Radiology
- Endodontics
Background:
- Radiopacity is a critical property for root canal filling materials, enabling visualization on radiographs.
- Assessing radiopacity ensures materials can be distinguished from surrounding tissues and pathologies.
Purpose of the Study:
- To compare the radiopacity of four calcium silicate cements: NeoMTA 2, OrthoMTA, ProRoot MTA, and Biodentine.
- To evaluate their compliance with international radiopacity standards using digital imaging.
Main Methods:
- Disk-shaped samples of four calcium silicate cements were prepared.
- Digital radiography was employed using a standardized exposure (70 kVp, 8 mA, 0.32s at 30cm).
- Radiopacity was quantified by comparing material greyness values to an aluminum step-wedge, determining equivalent aluminum thickness.
Main Results:
- Radiopacity values (mm Al): ProRoot MTA (4.32 ± 0.17), OrthoMTA (3.92 ± 0.09), NeoMTA 2 (3.83 ± 0.07), and Biodentine (2.29 ± 0.21).
- Statistically significant differences (p < 0.05) were observed in the radiopacity among the tested materials.
- ProRoot MTA demonstrated the highest radiopacity.
Conclusions:
- ProRoot MTA is the most radiopaque material among those tested.
- NeoMTA 2, OrthoMTA, and ProRoot MTA meet the minimum radiopacity requirements of ISO 6876 and ADA 57.
- Biodentine did not meet the minimum radiopacity standards.
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