ArticleJournal of functional biomaterials2026
Optical Coherence Tomography, Stereomicroscopic, and Histological Aspects of Bone Regeneration on Rat Calvaria in the Presence of Bovine Xenograft or Titanium-Reinforced Hydroxyapatite.
Article in Journal of functional biomaterials, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundAlveolar ridge preservation (ARP) techniques have evolved with implantology development. In clinical practice, biomaterials for ARP are tested in laboratory animals, and rat calvaria is a standard option. The study aimed to evaluate biomaterial osteointegration in defects created in the rat calvaria, comparing an experimental synthetic biomaterial with a bovine xenograft and natural healing.
methodsThe study included six groups of animals: two negative control groups with natural healing (2 months (M) and 4 M), two positive control groups with bovine xenograft (2 M and 4 M), and two study groups with nanohydroxyapatite titanium reinforced (2M and 4M). After creating and grafting the defects, healing was expected to take 2 or 4 months, after which bone fragments were harvested, prepared, and then analyzed. OCT, stereomicroscopy, and histology techniques were used for bone fragments analysis, and the obtained images were evaluated using Image J 1.54p software.
resultsThe results obtained from the three analyses provided information about the healing pattern of bone defects and the degree of new bone formation. Histological analysis of the samples confirmed what the stereomicroscopy and OCT images showed: that the bovine xenograft elicited a better tissue response than the synthetic biomaterial, being incorporated into the bone tissue more than the synthetic biomaterial.
conclusionsBoth the bovine xenograft and the synthetic nanocomposite based on hydroxyapatite reinforced with titanium particles favored bone healing, but their integration into the bone was limited for the analyzed period.
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