Journal ID : CJOHNS-01-04-2024-11433
[This article belongs to Volume - 55, Issue - 04]

Title : Evaluating the efficacy of micro-osteoperforation for accelerating the orthodontic tooth movement of lower incisors crowding cases treated with clear aligners

Abstract :

To assess the efficacy of micro-osteoperforation (MOPs) for accelerating the orthodontic tooth movement of lower incisors crowding cases treated with clear aligners. The research sample consisted of (40) patients with a mean age of (22.3±1.3) years. They were randomly distributed either to the micro-osteoperforation group or to the control group with an allocation ratio of (1:1). The lower incisors of patients in both groups were decrowded with clear aligners, and before applying the first clear aligner to patients in the micro-osteoperforation group, 14 cortical perforations were made, two perforations in each interdental space of the lower incisors from the buccal aspect. The diameter of each perforation was 1.2 mm, and its depth was 1 mm within the cortical bone using a lance drill after making adjustments to it. The outcome measure was lower incisors alignment improvement percentage (LIAIP) which was measured by dividing the amount of change in the Little's irregularity index (LII) value at a specific time point (T1, T2, or T3) and Lll value at T0 multiplied by 100, where: T0: before starting orthodontic treatment (just before the first clear aligner is applied), T1: one month after the start of orthodontic treatment, T2: two months after the start of orthodontic treatment, T3: when the orthodontic treatment plan is completed (the last clear aligner neutralization). The results of the study showed that there was no statistically significant difference between the two groups regarding the (LIAIP) at T3 (P-value = 0.336), while there were statistically significant differences between the two groups regarding the (LIAIP) at T1 and T2 (P-value < 0.05). In the experimental group, the mean (LIAIP) was 48.13% at T1 and 69.61% at T2, whereas in the control group, the mean (LIAIP) was 22.68% at T1 and 42.08% at T2. Micro-osteoperforation technique (MOPs) accelerated orthodontic tooth movement significantly upto two months after application, where the orthodontic tooth movement was 2.12, 1.65 times faster at first month and second month respectively.

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