A comparison of bovine bone and hydroxyapatite scaffolds during initial bone regeneration: An in vitro evaluation

Filiberto Mastrangelo, Raimondo Quaresima, Alfredo Grilli, Lucia Tettamanti, Raffaele Vinci, Gilberto Sammartino, Stefano Tetè, Enrico Gherlone

Research output: Contribution to journalArticle

Abstract

OBJECTIVES:: To evaluate the different behavior of 3-dimensional biomaterial scaffolds - Bovine Bone (BB; Bio-Oss) and Hydroxyapatite (HA; ENGIpore) - during initial bone healing and development. MATERIALS AND METHODS:: Human dental papilla stem cells (hDPaSCs) were selected with FACsorter cytofluorimetric analysis, cultured with osteogenic medium, and analyzed with Alizarin red stained after differentiation. The obtained osteoblast-like cells (OCs) were cultured with BB and HA. alkaline phosphatase (ALP), OC, MEPE, and runt-related transcription factor 2 (RUNX2) expression markers were investigated performing Western blot and reverse transcription-polymerase chain reaction (RT-PCR) analysis. After 40 days, samples were analyzed by light and electron microscopy. RESULTS:: All the samples showed high in vitro biocompatibility and qualitative differences of OCs adhesion. RT-PCR and Western blot data exhibited similar marker rate, but ALP, OC, MEPE, and RUNX2expression, during initial healing and bone regeneration phase, was higher and faster in human dental papilla onto BB than in HA scaffolds. In biomaterials growth, RUNX2 seems to play an important role as a key regulator in human OCs from dental papilla bone development. CONCLUSION:: Different surface BB scaffold characteristics seem to play a critical role in OCs differentiation showing different time of bone regeneration morphological characteristics as well as higher and faster levels of all observed markers.

Original languageEnglish
Pages (from-to)613-622
Number of pages10
JournalImplant Dentistry
Volume22
Issue number6
DOIs
Publication statusPublished - Dec 2013

Keywords

  • Bio-Oss
  • bone
  • ENGIpore
  • mesenchymal stem cells
  • osteogenesis
  • regeneration

ASJC Scopus subject areas

  • Oral Surgery
  • Medicine(all)

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