Objective: Calcitonin injections were used in this investigation to see whether they influenced the quantity of bone formation after a rabbit model was subjected to micro-computed tomography expansion.
Materials And Methods: Research was conducted on a total of 16 white male rabbits. Randomly, 4 groups of 4 rabbits each had their bone-borne expanders triggered by the Hyrax appliances as follows: In the first group (the control), the expansion was (0.5) mm per day for 12 days. In the second group, the same expansion protocol was used with 3 subcutaneous injections of calcitonin). In the third group, the expansion was (2.5) mm per day for 7 days followed by (0.5) mm per day for 7 days. In the fourth group, the same expansion protocol was used with 3 subcutaneous injections of calcitonin. As a result, all groups had their Hyrax devices expanded by 6 mm in total. Sutural separation and new bone growth were examined by micro-computed tomography after 6 weeks of retention. To end the experiment, the rabbits were given a high dosage of phenobarbitone (90 mg/kg).
Results: In the calcitonin-receiving group, there was a significant increase in anterior and posterior sutural separation, when compared with non-calcitonin-receiving groups. In the (2.5) mm instant expansion protocol, there was a significant increase in anterior and posterior sutural separation, when compared with the (0.5) mm instant expansion protocol.
Conclusion: Calcitonin and the instant expansion protocol enhance new bone formation in rabbits.
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