1. Physicochemical characterization and effects of monetite obtained from titania-reinforced eggshell on bone repair: a new possibility for tissue bioengineering?
- Author
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Oliveira LKR, Nascimento Neto CDD, Costa E Silva AB, Rocha SMW, Bianchi PR, Galdino AGS, and Silva DN
- Subjects
- Animals, Rats, X-Ray Diffraction, Egg Shell chemistry, Spectrometry, X-Ray Emission, Bone Regeneration drug effects, Materials Testing, Biocompatible Materials pharmacology, Biocompatible Materials chemistry, Male, Compressive Strength, Bioengineering, Calcium Phosphates chemistry, Calcium Phosphates pharmacology, Surface Properties, Porosity, Durapatite pharmacology, Durapatite chemistry, Titanium chemistry, Rats, Wistar, Microscopy, Electron, Scanning, Skull surgery
- Abstract
Objectives: To carry out physicomechanical characterization of the HA/DCPA/TiO
2 and to evaluate the tissue repair in rat calvaria., Methods: Two bone defects were made in the calvaria of 36 Wistar rats, divided into groups: HA/DCPA, HA/DCPA/TiO2 and sham (blood clot). The animals were euthanized at 30, 60 and 90 days and calvaria slides were processed with hematoxylin/eosin. The newly formed bone, connective tissue, biomaterial remnant, and total tissue repair percentages were calculated in relation to the total defect area. The HA/DCPA/TiO2 was characterized structurally by scanning electron microscopy (SEM), and chemically by energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). It was submitted to apparent density (AD), apparent porosity (AP), water absorption (WA) and compressive strength (CS) physical tests. The ANOVA test was applied, followed by Turkey's test and Student's t-test (p ≤ 0,05)., Results: The SEM showed biomaterials inside the bone defects and newly formed bone. EDS identified oxygen, calcium, phosphorus, and titanium in the sample. The HA/DCPA/TiO2 and HA/DCPA groups presented a total tissue repair area that was larger than the sham group (p < 0.001)., Conclusions: The physical-mechanical assays showed that HA/DCPA/TiO2 has AD and CS properties within the limits of trabecular bone and with values higher than HA/DCPA.HA/DCPA/TiO2 presented higher densification and compressive strength rates than HA/DCPA., Clinical Relevance: Potential as a scaffold for bone., Competing Interests: Declarations. Competing interests: The authors declare no competing interests., (© 2025. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2025
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