Evaluation Of Pain Perception During Micro-Osteoperforation Assisted Maxillary En-Masse Retraction: A Randomized Controlled Trial

Abstract

Objective: The aim of this study was to evaluate and compare pain level during anterior segment retraction with and without micro-osteoperforation in patients requiring extraction of upper first premolars. (Class I with bi-alveolar dental protrusions or class II division 1).

Material and Methods: 26 patients were randomized into 2 equal groups (n=26). In group 1 (intervention group) the MOPs were repeated every 28 days on the labial of the anterior teeth during the trial period while group 2 (control group) conventional en-masse retraction was initiated. Pain assessment was done using a numeric pain rating scale. Results: the micro-osteoperforation group showed severe pain on the 1^st day that gradually faded by the end of the 1^st week. Conclusion: Micro-osteoperforation resulted in higher pain levels on the same day of the procedure but gradually faded within one week.