Journal
JOURNAL OF DENTAL RESEARCH
Volume 87, Issue 12, Pages 1144-1148Publisher
SAGE PUBLICATIONS INC
DOI: 10.1177/154405910808701204
Keywords
avulsion; dental trauma; angiogenesis; FGF-2; VEGF
Categories
Funding
- Department of Cariology, Restorative Sciences, and Endodontics, University of Michigan School of Dentistry
- Rackham Graduate School, University of Michigan
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The long-term outcome of replanted avulsed permanent teeth is frequently compromised by lack of revascularization, resulting in pulp necrosis. The purpose of this study was to evaluate the effects of vascular endothelial growth factor (VEGF) and fibroblast growth factor (FGF-2) on the revascularization of severed human dental pulps. Tooth slices were prepared from non-carious human molars and treated with 0-50 ng/mL rhVEGF(165) or rhFGF-2 for 7 days in vitro. Both angiogenic factors enhanced pulp microvessel density compared with untreated controls (p < 0.05). Tooth slices were also treated with 0 or 50 ng/mL rhVEGF165 for one hour prior to implantation into the subcutaneous space of immunodeficient mice. Treatment with rhVEGF165 increased pulp microvessel density in vivo (p < 0.05). These results demonstrate that rhVEGF165 enhanced neovascularization of severed human dental pulps and suggest that topical application of an angiogenic factor prior to replantation might be beneficial for the treatment of avulsed teeth.
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