Maxillofac Plast Reconstr Surg.  2023;45(1):40. 10.1186/s40902-023-00405-6.

Effects of rhBMP‑2 with various carriers on maxillofacial bone regeneration through computed tomography evaluation

•  Seo J
• Lim J
• Jo W
• Lee J
•  Song S

• KMID: 2552498
• DOI: http://doi.org/10.1186/s40902-023-00405-6

Abstract

Background
rhBMP-2 is regarded as the most potent osteoinductive growth factor, and it has been used in the oral cavity with different carriers. The purpose of this study is to evaluate the bone-regenerative effect of rhBMP-2 delivered with different carrier systems through three-dimensional cone beam computed tomography analysis. Method A total of 112 patients underwent oral surgery with rhBMP-2 application (Group 1, n = 53) or without rhBMP-2 application (Group 2, n = 59). Group 1 was divided into 3 groups according to carriers, rhBMP-2 with allograft (Group 1–1, n = 34), rhBMP-2 with xenograft (Group 1–2, n = 5), and rhBMP-2 with absorbable collagen sponge (Group 1–3, n = 14). Cone beam computed tomography scans were taken before surgery (T0) 6 months after surgery (T1). The volume of defects was measured through the three-dimensional image analysis tool.
Results
The average bone regeneration rate of Group 1 was significantly greater than that of Group 2. Within Group 1, the group that used allograft as a carrier (Group 1–1) showed significantly higher bone regeneration rates than the group that used absorbable collagen sponge as a carrier (Group 1–3).
Conclusion
The use of rhBMP-2 after oral surgery results in a superior bone regeneration rate compared to not using rhBMP-2, and its efficacy depends on the carriers it is used with. Allograft affects bone regeneration more than absorbable collagen sponge when it is carried with rhBMP-2. Therefore, the appropriate use of rhBMP-2 with suitable bone grafting materials is useful for promoting postoperative bone regeneration in oral surgery.

Keyword

Recombinant human bone morphogenetic protein 2; Bone regeneration; Cone beam computed tomography