Implant Placement in Alveolar Composite Defects Regenerated with rhBMP-2, Anorganic Bovine Bone, and Titanium Mesh: A Report of Eight Reconstructed Sites

Abstract

To present a retrospective report of eight significant alveolar defects in which the alveolus was regenerated with recombinant human bone morphogenetic protein 2 (rhBMP-2) combined with anorganic bovine bone and contoured using titanium mesh to facilitate implant-supported restorations. A total of seven patients underwent extractions and debridement of the compromised alveolar sites with simultaneous grafting using a mixture of rhBMP-2 and anorganic bovine bone. The three-dimensional contour of the compromised alveolus was reestablished using titanium mesh with rigid screw fixation. Implants were placed a minimum of 6 months after healing and subsequently were restored. The treated defects were successfully regenerated and did not require any additional surgery prior to implant placement or prosthetic restoration. A total of 14 implants were placed and restored with fixed single or multiple restorations. Thirteen of the 23 treated sites were in the anterior esthetic zone. Vertical and horizontal alveolar bone defects can be predictably regenerated by grafting with a combination of rhBMP-2 and anorganic bovine bone contained by titanium mesh to successfully accommodate implant placement.