title: Assessment of bone healing in rabbit calvaria grafted with three different biomaterials.
abstract: This study evaluated the bone regeneration process in rabbit calvaria induced by three types of biomaterials: two xenogenous, consisting of deproteinized bovine bone, while the other was alloplastic, based on biphasic calcium phosphate. Five New Zealand white rabbits weighing between 2,900 and 3,500 g were submitted to four standard 8 mm-diameter perforations at the parietal bone. Three perforations were filled with three grafts and biomaterials, two of them received bovine Bio-Oss® and Endobon® Xenograft Granules, and the other consisted of fully alloplastic Straumann® Bone Ceramic. The fourth remaining cavity was used as control with coagulum. After eight weeks, the animals were sacrificed, and the samples were prepared for morphometric and qualitative analysis. The cavities filled with alloplastic biomaterials showed higher percentages of newly formed bone (p<0.05), while the cavities with xenogenous biomaterials showed higher amount of residual graft (p<0.05). Although the results showed greater bone formation with Straumann® Bone Ceramic, further studies are required to prove which is the more effective biomaterial for bone induction process.
authors.affiliation: Master's Program in Dentistry, Paulista University, UNIP, São Paulo, SP, Brazil.
authors.forename: Carlos Alberto Yoshihiro
authors.initials: CA
authors.lastname: Takauti
authors.affiliation: Department of Veterinary Medicine, Paulista University, UNIP, São Paulo, SP, Brazil.
authors.forename: Fabio
authors.initials: F
authors.lastname: Futema
authors.affiliation: Department of Dentistry, São Leopoldo Mandic, Institute and Dental Research Center, Campinas, SP, Brazil.
authors.forename: Rui Barbosa de
authors.initials: RB
authors.lastname: Brito Junior
authors.affiliation: Department of Dentistry, Federal University of Rio de Janeiro, UFRJ, Rio de Janeiro, RJ, Brazil.
authors.forename: Aline Corrêa
authors.initials: AC
authors.lastname: Abrahão
authors.affiliation: Department of Stomatology, School of Dentistry, University of São Paulo, USP, São Paulo, SP, Brazil.
authors.forename: Claudio
authors.initials: C
authors.lastname: Costa
authors.affiliation: Department of Dentistry, Veiga de Almeida University, Rio de Janeiro, RJ, Brazil.
authors.forename: Celso Silva
authors.initials: CS
authors.lastname: Queiroz
mesh_terms: D000818:Animals; D001672:Biocompatible Materials / Q000627:therapeutic use*; D001847:Bone Diseases / Q000473:pathology / Q000601:surgery; D001857:Bone Matrix / Q000637:transplantation; D001861:Bone Regeneration / Q000502:physiology*; D018786:Bone Substitutes / Q000627:therapeutic use*; D016025:Bone Transplantation / Q000379:methods; D002417:Cattle; D002516:Ceramics; D054893:Cone-Beam Computed Tomography / Q000379:methods; D064593:Heterografts / Q000637:transplantation; D006882:Hydroxyapatites / Q000627:therapeutic use; D007091:Image Processing, Computer-Assisted / Q000379:methods; D021621:Imaging, Three-Dimensional / Q000379:methods; D008297:Male; D008903:Minerals / Q000627:therapeutic use; D010012:Osteogenesis / Q000502:physiology; D010294:Parietal Bone / Q000473:pathology / Q000601:surgery; D011817:Rabbits; D013997:Time Factors
chemical_list: C077540:Bio-Oss; D001672:Biocompatible Materials; D018786:Bone Substitutes; D006882:Hydroxyapatites; D008903:Minerals; C074950:hydroxyapatite-beta tricalcium phosphate; C104266:endobon