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Year : 2014  |  Volume : 1  |  Issue : 3  |  Page : 132-136

Physicochemical characterization: Comparative evaluation of three allograft biomaterials and autogenous bone

1 Department of Oral And Maxillofacial Surgery, School of Dentistry, Lebanese University, Lebanon
2 Ecole Doctorale, Prase, Lebanese University, Lebanon

Correspondence Address:
Antoine Berberi
Department of Oral And Maxillofacial Surgery, School of Dentistry, Lebanese University, Lebanon

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Source of Support: This project was supported by a grant from the EcoleDoctorale, Lebanese University, Conflict of Interest: None

DOI: 10.4103/2348-2915.146491

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Objectives: Bone substitutes (BSs) used in oral surgery include allografts, xenografts, and synthetic materials that are frequently used to compensate bone loss or to reinforce repaired bone by encouraging new bone in growth into the defect site. The aim of this study was to evaluate a number of physical and chemical properties in a variety of allografts biomaterials used in oral surgery and to compare them with those of autogenous bone. Materials and Methods: Autogenous bone and three different allograft biomaterials were studied by high-resolution X-ray diffractometry (XRD), atomic absorption spectrometry, laser diffraction, and checked for their chemical composition, calcium release concentration, crystallinity, and granulation size. Results: The highest calcium release concentration was 24.94 mg/g for Puros ® and the lowest one was 4.05 mg/g for OsteoSponge ® compared to 20.15 mg/g to natural bone. The range of particles size, in term of median size D 50 , varied between 630.47 μm for Puros ® and 902.41μm for OsteoSponge, ® compared to 282.1μm for natural bone. Bone and Puros ® displayed a hexagonal shape as bone except and OsteoSponge ® which showed a triclinic shape. Conclusion: A BS of choice depends largely on its clinical application that is associated to its biological and mechanical performance. These morphological differences between biomaterials greatly influence their in vivo behavior of biomaterials. Significant differences were detected in terms of calcium concentration, particles size, and crystallinity.

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