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National Journal of Maxillofacial Surgery
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Year : 2012  |  Volume : 3  |  Issue : 2  |  Page : 172-179

Bone resorption analysis of platelet-derived growth factor type BB application on collagen for bone grafts secured by titanium mesh over a pig jaw defect model

1 Department of Oral and Maxillofacial Surgery, Loma Linda University, Loma Linda, CA, USA
2 Department of Human Pathology, University of Messina School of Dentistry, Messina, ME, Italy

Correspondence Address:
Marco Cicciù
Department of Human Pathology, Dental School, Messina University, Via Consolare Valeria 98100, Messina
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0975-5950.111374

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Purpose: The aim of this investigation was to evaluate whether the addition of the platelet derived growth factor type BB (PDGF-BB) to a collagen matrix applied on a titanium mesh would favor healing and resorption onto the grafted bone. A histologic and radiographic study of two different groups (test and control) was performed. Designs: A surgical procedure was performed on 8 pigs to obtain 16 bilateral mandibular alveolar defects. All the defects were then reconstructed with a mixture of autogenous bovine bone using titanium mesh positioning. Two groups, with a total of 16 defects were created: The first to study collagen sponge and PDGF-BB and the second to control collagen only. The collagen matrix was positioned directly over the mesh and soft tissue was closed without tensions onto both groups without attempting to obtain primary closure. Possible exposure of the titanium mesh as well as the height and volume of the new bone was recorded. Results: New bone formation averaged about 6.68 mm in the test group studied; the control group had less regenerated bone at 4.62 mm. Conclusion: PDGF-BB addition to the collagen matrix induced a strong increase in hard and soft tissue healing and favored bone formation, reducing bone resorption even if the mesh was exposed.

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