Osteoinductive activity of biphasic calcium phosphate with different rhBMP-2 doses in rats

Ji Woong Jang, Jeong Ho Yun, Kwang Il Lee, Ju Woong Jang, Ui Won Jung, Chang Sung Kim, Seong Ho Choi, Kyoo Sung Cho

Research output: Contribution to journalArticlepeer-review

54 Citations (Scopus)

Abstract

Objective. The aim of the current study was to determine whether a hydroxyapatite (HA)/beta-tricalcium phosphate (β-TCP) ratio of 20/80 impregnated with recombinant human bone morphogenetic protein (rhBMP-2) enhances new bone formation and to evaluate the dose-dependent response of rhBMP-2. Study Design. Critical-sized calvarial defects were made in rats, and biphasic calcium phosphate (BCP) with different rhBMP-2 doses was loaded into rat calvarial defects. The animals were allowed to heal for either 2 or 8 weeks. Results. The percentages of new bone after 2 and 8 weeks of healing were significantly greater in the rhBMP-2-treated groups (at all doses) than in the control groups. The percentage of remaining BCP was significantly lower at 8 weeks than at 2 weeks in all groups that included BCP. Conclusions. rhBMP-2 administered using a BCP carrier significantly induces new bone formation. A dose-dependent response was not shown in the present study.

Original languageEnglish
Pages (from-to)480-487
Number of pages8
JournalOral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
Volume113
Issue number4
DOIs
Publication statusPublished - 2012 Apr

All Science Journal Classification (ASJC) codes

  • Surgery
  • Oral Surgery
  • Pathology and Forensic Medicine
  • Dentistry (miscellaneous)
  • Radiology Nuclear Medicine and imaging

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