To measure the amount of orthodontic tooth movement within both demineralize and mineralize freeze-dried bone allografts.
Methods:
Sample consisted of four male dogs. In each animal, four defects were created at the mesial aspects of the maxillary and mandibular first permanent premolars. The defects were filled with DFDBA or FDBA equally. NiTi closed coil with 150 gr force was used for mesial movement of the first premolar. Tooth movements were analyzed using paired t test.
Results:
The findings demonstrated that it was possible to move a tooth into a defect, filled with DFDBA or FDBA with the same rate of tooth movement. Mean tooth movement in DFDBA and FDBA was 2.6±0.11 mm in DFDBA and 2.4±0.12 mm in FDBA. Data showed no statistical difference between DFDBA and FDBA groups.
Conclusions:
These findings indicate that FDBA and DFDBA could be a biocompatible bone substitute into bone defects subjected to orthodontic tooth movement.