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Biological Compatibility Profile on Biomaterials for Bone Regeneration
Published on: November 16, 2018
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A new eggshell-derived calcium phosphate bioceramic for tissue engineering: cytotoxicity and histomorphometric study
Conrado Dias do Nascimento Neto1, Laisa Kindely Ramos de Oliveira1, Amy Brian Costa E Silva2
1Universidade Federal do Espírito Santo - Programa de Pós-Graduação em Ciências Odontológicas - Vitória (ES) - Brazil.
Acta Cirurgica Brasileira
|April 2, 2025
Summary
A new chicken eggshell-derived bioceramic (hydroxyapatite/dicalcium phosphate anhydrous-HA/DCPA) showed no cytotoxicity. This HA/DCPA material effectively promoted bone regeneration and tissue repair in rat calvarial defects.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Orthopedic Research
Background:
- Bioceramics are crucial for bone regeneration.
- Developing novel, cost-effective biomaterials is essential.
- Chicken eggshell is a potential source for hydroxyapatite.
Purpose of the Study:
- To assess the cytotoxicity and tissue repair capabilities of a new hydroxyapatite/dicalcium phosphate anhydrous (HA/DCPA) bioceramic derived from chicken eggshells.
- To compare the bone regeneration potential of HA/DCPA with a commercial HA/β-TCP bioceramic (Maxresorb-MXR).
Main Methods:
- Cytotoxicity was evaluated using the MTT assay on fibroblasts.
- Critical-sized bone defects in Wistar rats were filled with HA/DCPA or Maxresorb-MXR.
- Histomorphometric analysis, SEM, and EDX assessed bone formation, tissue repair, and material degradation over 90 days.
Main Results:
- The HA/DCPA bioceramic demonstrated no cytotoxicity.
- Significant bone regeneration and tissue filling were observed in HA/DCPA treated defects.
- At 30 days, HA/DCPA showed a larger total tissue repair area compared to Maxresorb-MXR.
Conclusions:
- The chicken eggshell-derived HA/DCPA bioceramic is non-cytotoxic and effective for bone regeneration.
- HA/DCPA promotes new bone formation and complete defect filling.
- This novel bioceramic is comparable to existing materials like HA/β-TCP for bone repair applications.
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