Effectiveness of microosteoperforations in accelerating alig
This trial aimed to investigate the effectiveness of microosteoperforations (MOPs) in overall time taken for alignment of maxillary anterior crowding and to evaluate the alignment improvement percentage within 6 months between MOPs and control groups.

Thirty adult participants with moderate upper labial segment crowding were randomly assigned into intervention and control groups using block randomization. All participants had first premolar extractions, bonded conventional fixed appliances, and 0.014-in, followed by 0.018-in nickel-titanium archwire placement for initial alignment.

The intervention group received a 3-mm deep MOPs procedure under local anesthesia using a Propel device on the labial attached gingivae of maxillary incisors at monthly visits until complete alignment. Little's irregularity index was used to assess the overall changes and measure the change of tooth alignment of the 6 maxillary anterior teeth. Assessor blinding was employed.

- There was no statistically significant difference in the median overall alignment duration between MOPs and control groups.

- The MOPs procedure had no significant effect on the alignment duration and no overall significant difference in alignment improvement percentage among the 2 groups on the basis of time. No harm was encountered.

In conclusion, the application of MOPs is no more effective in accelerating initial orthodontic alignment than conventional treatment.

American Journal of Orthodontics & Dentofacial Orthopedics
Source: https://doi.org/10.1016/j.ajodo.2021.04.021