Anorganic Bovine Bone Plus Recombinant Human Platelet-Derived Growth Factor-BB in Ridge Preservation: A Pilot Study

Gerardo Mendoza-Azpur, Heydi Cornejo, Allinson Olaechea, Miguel Padial-Molina, Francisco O’Valle, Pablo Galindo-Moreno

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: To determine clinical parameters, histologic features, and radiographic linear bone width changes of regenerated bone using different biomaterials for ridge preservation following tooth extraction. Materials and Methods: For this pilot study, five patients were grafted with anorganic bovine bone and collagen plus recombinant human platelet–derived growth factor-BB (rhPDGF-BB), five patients were grafted with anorganic bovine bone and collagen alone, and five patients did not receive any biomaterial (control) after tooth extraction. Clinical, histologic, and radiographic evaluations were carried out 4 months postextraction. Results: Differences in terms of buccolingual width were found when comparing the control group to the group grafted with anorganic bovine bone and collagen plus rhPDGF-BB (P= .012). No statistical differences were observed between the groups in terms of mineralized or nonmineralized tissue formation or in terms of the number of osteoblasts or osteocytes per mm after 4 months of healing. Interestingly, the number of vessels in the grafted area was found to be significantly different among the three groups (P= .005). The number of Musashi-1 positive cells was also different among groups, both in the mineralized and the nonmineralized areas of the grafted bone (P= .024 and .005, respectively). Conclusion: Anorganic bovine bone with bovine collagen is an efficient biomaterial to avoid postextraction resorption of the alveolar ridge. The addition of rhPDGF-BB appears to improve the biologic features of the newly formed bone and decrease bone resorption; further studies are needed for confirmation. Int J Oral Maxillofac Implants 2022;37:356–364. doi: 10.11607/jomi.9022

Original languageEnglish
Pages (from-to)356-364
Number of pages9
JournalInternational Journal of Oral and Maxillofacial Implants
Volume37
Issue number2
DOIs
StatePublished - 2022
Externally publishedYes

Keywords

  • anorganic bovine bone
  • rhPDGF-BB
  • ridge preservation

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