Does orthodontic loading influence bone mineral density around titanium miniplates? An experimental study in dogs
MA Cornelis, P Mahy, JP Devogelaer, HJ De Clerck, C Nyssen-Behets
ORTHODONTICS & CRANIOFACIAL RESEARCH | WILEY | Published : 2010
OBJECTIVES: To evaluate whether orthodontic loading has an effect on miniplate stability and bone mineral density (BMD) around the screws supporting those miniplates. SETTING AND SAMPLE POPULATION: Two miniplates were inserted in each jaw quadrant of 10 dogs. MATERIAL AND METHODS: Two weeks later, coil springs were placed between the miniplates of one upper quadrant and between those of the contralateral lower quadrant. The other miniplates remained non-loaded. The dogs were sacrificed 7 or 29 weeks after surgery, and the jaws were scanned with peripheral Quantitative Computed Tomography (pQCT) to assess BMD. RESULTS: The success rate was not significantly different for the loaded and the no..View full abstract
We thank Prof. J.P. Dehoux and G. Araujo for animal housing, Dr. C. De Clercq and Dr. F. Nsimba for surgical assistance, and D. Dienst for pQCT technical help. This research was supported by the Special Research Fund (Universite catholique de Louvain). The miniplates were provided by Surgi-Tec.