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Effects of Matrix Metalloproteinase Inhibitors on Bone Resorption and Orthodontic Tooth MovementDepartment of Orthodontics, College of Dentistry, University of Florida, Box 100444, JHMHC, Gainesville, FL 32610-0444; Correspondence: * corresponding author, cdolce{at}dental.ufl.edu Matrix metalloproteinases are involved in the regulation of bone remodeling. The hypothesis that matrix metalloproteinase inhibitors may be useful for experimentally limiting orthodontic tooth movement, a process involving perturbations of normal bone remodeling, was tested. General matrix metalloproteinase inhibitors limited the resorption of bone slices by mouse marrow cultures stimulated by calcitriol, parathyroid hormone, and basic-fibroblast growth factor. Pre-coating dentin slices with short arginine-glycine aspartic acid (RGD) peptides, but not arginine-glycine-glutamic acid (RGE) controls, restored bone resorption in the presence of matrix metalloproteinase inhibitors. Orthodontic tooth movement was inhibited by local delivery of Ilomastat, a general matrix metalloproteinase inhibitor, with the use of ethylene-vinyl-acetate (ELVAX) 40, a non-biodegradable, non-inflammatory sustained-release polymer. This study shows that orthodontic tooth movement can be inhibited with the use of matrix metalloproteinase inhibitors, and suggests a mechanistic link between matrix metalloproteinase activity and the production of RGD peptides.
Key Words: matrix metalloproteinase inhibitors bone resorption orthodontic tooth movement
Journal of Dental Research, Vol. 82, No. 9,
687-691 (2003) This article has been cited by other articles:
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