Introduction: Stable functional occlusion is an important criteria during orthodontic treatment. A more descriptive and detailed evaluation of interarchocclusal contacts in association with trabecular changes of the bone is not done routinely in orthodontics.
Materials and methods: 120 hyperdivergent male subjects, age ranging from 16-25 years were evaluated using T-Scan III system along with associated software to record force distribution in dental arch. Force distribution was assessed in the following intervals C0-1st day and C1-120days in 60 control group (CG) subjects, E0-1st day, E1-7days, E2-30days, E3-60days, E4- 120days in 60 experimental group (EG) subjects. The OPG and IOPAR of molar-premolar region were taken for all the subjects to assess the trabeculae changes of the bone during orthodontic treatment. The data obtained was statistically analysed using independent and paired t test.
Results: Comparison of force distribution C0-1st day, C1-120days and E0-1st day, E4- 120days in control and experimental groups of right and left side showed insignificant changes (p>0.05). The force distribution on the right and left sides at different time period showed significant difference only after 60days of fixed mechanotherapy.There was significant change in number of vertical and horizontal bone trabeculae and angulation of horizontal bone trabeculae between E0 -1st day and E4 -120 days in the right and left sides (p<0.05).
Conclusions: Clinically there was a significant increase in force distribution, only after 60 days of fixed mechanotherapy in hyper divergent individuals attributing to functional occlusal changes. The change in the number of horizontal trabeculae and their angulations show the amount of structural imbalance occurring during the initial stages of fixed orthodontic treatment.
Impact Factor
2022: 6.012
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