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The Scientific World Journal
Volume 2012 (2012), Article ID 196791, 9 pages
http://dx.doi.org/10.1100/2012/196791
Research Article

The Effect of an Enamel Matrix Derivative (Emdogain) Combined with Bone Ceramic on Bone Formation in Mandibular Defects: A Histomorphometric and Immunohistochemical Study in the Canine

1Department of Periodontics, School of Dentistry and Torabinejad Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
2Department of Pathology, School of Dentistry and Torabinejad Research Centre, Isfahan University of Medical Sciences, Isfahan, Iran
3Diplomate of American Board of Periodontology, Private Practice in Periodontics, Silver Spring and Potomac, 11616 Toulone Dr., Potomac, Maryland, MD 20854, USA

Received 27 October 2011; Accepted 16 November 2011

Academic Editors: M. Borset and V. L. Sylvia

Copyright © 2012 Reza Birang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Background. The purpose of this study was to evaluate the combination of an enamel matrix derivative (EMD) and an osteoconductive bone ceramic (BC) in improving bone regeneration. Materials and Methods. Four cylindrical cavities ( 6 × 6 m m ) were prepared bilaterally in the mandible in three dogs. The defects were randomly assigned to four different treatments—filled with EMD/BC and covered with a nonresorbable membrane, filled with EMD/BC without membrane, membrane coverage only, or control (left untreated)—and healed for 2, 4, or 6 weeks. Harvested specimens were prepared for histologic, histomorphometric, and immunohistochemical analyses. Results. Sites treated with EMD/BC with or without membrane showed more total bone formation and lamellar bone formation than membrane-only and control defects. There were no statistically significant differences in total bone formation between EMD/BC with or without membrane. Conclusion. EMD with BC might improve bone formation in osseous defects more than membrane coverage alone; the use of a membrane had no significant additive effect on total bone formation.