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Marginal gaps and internal voids after root-end filling using three calcium silicate-based materials: A Micro-CT
Alexander Pompermayer Jardine1, Ketsia Fernanda Váz Rosa2, Felipe Barros Matoso1
1Graduate Program of School of Dentistry/Endodontics, Federal University of Rio Grande do Sul(UFRGS), Porto Alegre, RS, Brazil.
Brazilian Dental Journal
|November 17, 2021
Summary
This study compared three calcium silicate-based materials for root-end filling. Micro-CT scans revealed no significant differences in marginal gaps or internal voids among MTA Angelus, Biodentine, and Neo MTA Plus.
Area of Science:
- Endodontics
- Dental Materials Science
- 3D Imaging in Dentistry
Background:
- Root-end filling is crucial for the success of apical surgery.
- Calcium silicate-based materials are commonly used for their sealing properties.
- Assessing the 3D quality of these fillings is essential for clinical predictability.
Purpose of the Study:
- To evaluate and compare the 3D quality of root-end fillings using three calcium silicate-based materials.
- To quantify marginal gaps and internal voids in retrofilled cavities.
- To determine if there are significant differences in defect formation between MTA Angelus, Biodentine, and Neo MTA Plus.
Main Methods:
- Thirty human single-rooted teeth underwent root canal treatment and retro-filling with MTA Angelus, Biodentine, or Neo MTA Plus.
- Micro-computed tomography (micro-CT) scans were performed before and after filling.
- Marginal gap volume/percentage and internal void volume/percentage were quantified and statistically analyzed.
Main Results:
- No statistically significant differences were found between the three materials regarding marginal gaps, internal voids, or overall defects.
- Median overall defect volume was 0.004mm³ (1.749%) for MTA Angelus, 0.018mm³ (6.660%) for Biodentine, and 0.012mm³ (4.079%) for Neo MTA Plus.
- All tested materials exhibited some degree of gaps and/or voids.
Conclusions:
- MTA Angelus, Biodentine, and Neo MTA Plus demonstrated comparable 3D quality in terms of marginal gap and internal void formation.
- Further research may explore long-term sealing ability and biocompatibility.
- Clinical selection may depend on factors beyond immediate volumetric defect assessment.
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